Technique using an instrument system for making, processing, and displaying one or more measurements on individual cells obtained from a cell suspension. Cells are usually stained with one or more fluorescent dyes specific to cell components of interest, e.g., DNA, and fluorescence of each cell is measured as it rapidly transverses the excitation beam (laser or mercury arc lamp). Fluorescence provides a quantitative measure of various biochemical and biophysical properties of the cell, as well as a basis for cell sorting. Other measurable optical parameters include light absorption and light scattering, the latter being applicable to the measurement of cell size, shape, density, granularity, and stain uptake.
A technique encompassing morphometry, densitometry, neural networks, and expert systems that has numerous clinical and research applications and is particularly useful in anatomic pathology for the study of malignant lesions. The most common current application of image cytometry is for DNA analysis, followed by quantitation of immunohistochemical staining.
The flow of BLOOD through or around an organ or region of the body.
A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.
A scanning microscope-based, cytofluorimetry technique for making fluorescence measurements and topographic analysis on individual cells. Lasers are used to excite fluorochromes in labeled cellular specimens. Fluorescence is detected in multiple discrete wavelengths and the locational data is processed to quantitatively assess APOPTOSIS; PLOIDIES; cell proliferation; GENE EXPRESSION; PROTEIN TRANSPORT; and other cellular processes.
Process of classifying cells of the immune system based on structural and functional differences. The process is commonly used to analyze and sort T-lymphocytes into subsets based on CD antigens by the technique of flow cytometry.
One of the mechanisms by which CELL DEATH occurs (compare with NECROSIS and AUTOPHAGOCYTOSIS). Apoptosis is the mechanism responsible for the physiological deletion of cells and appears to be intrinsically programmed. It is characterized by distinctive morphologic changes in the nucleus and cytoplasm, chromatin cleavage at regularly spaced sites, and the endonucleolytic cleavage of genomic DNA; (DNA FRAGMENTATION); at internucleosomal sites. This mode of cell death serves as a balance to mitosis in regulating the size of animal tissues and in mediating pathologic processes associated with tumor growth.
Differentiation antigens residing on mammalian leukocytes. CD stands for cluster of differentiation, which refers to groups of monoclonal antibodies that show similar reactivity with certain subpopulations of antigens of a particular lineage or differentiation stage. The subpopulations of antigens are also known by the same CD designation.
Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.
Agents that emit light after excitation by light. The wave length of the emitted light is usually longer than that of the incident light. Fluorochromes are substances that cause fluorescence in other substances, i.e., dyes used to mark or label other compounds with fluorescent tags.
A cell line derived from cultured tumor cells.
The degree of replication of the chromosome set in the karyotype.
The complex series of phenomena, occurring between the end of one CELL DIVISION and the end of the next, by which cellular material is duplicated and then divided between two daughter cells. The cell cycle includes INTERPHASE, which includes G0 PHASE; G1 PHASE; S PHASE; and G2 PHASE, and CELL DIVISION PHASE.
Rhythmic, intermittent propagation of a fluid through a BLOOD VESSEL or piping system, in contrast to constant, smooth propagation, which produces laminar flow.
The marking of biological material with a dye or other reagent for the purpose of identifying and quantitating components of tissues, cells or their extracts.
All of the processes involved in increasing CELL NUMBER including CELL DIVISION.
The change in gene frequency in a population due to migration of gametes or individuals (ANIMAL MIGRATION) across population barriers. In contrast, in GENETIC DRIFT the cause of gene frequency changes are not a result of population or gamete movement.
Antibodies produced by a single clone of cells.
Small uniformly-sized spherical particles, of micrometer dimensions, frequently labeled with radioisotopes or various reagents acting as tags or markers.
Quaternary ammonium analog of ethidium; an intercalating dye with a specific affinity to certain forms of DNA and, used as diiodide, to separate them in density gradients; also forms fluorescent complexes with cholinesterase which it inhibits.
Large, phagocytic mononuclear leukocytes produced in the vertebrate BONE MARROW and released into the BLOOD; contain a large, oval or somewhat indented nucleus surrounded by voluminous cytoplasm and numerous organelles.
The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability.
Lymphocytes responsible for cell-mediated immunity. Two types have been identified - cytotoxic (T-LYMPHOCYTES, CYTOTOXIC) and helper T-lymphocytes (T-LYMPHOCYTES, HELPER-INDUCER). They are formed when lymphocytes circulate through the THYMUS GLAND and differentiate to thymocytes. When exposed to an antigen, they divide rapidly and produce large numbers of new T cells sensitized to that antigen.
Fluorescent probe capable of being conjugated to tissue and proteins. It is used as a label in fluorescent antibody staining procedures as well as protein- and amino acid-binding techniques.
Elements of limited time intervals, contributing to particular results or situations.
A critical subpopulation of T-lymphocytes involved in the induction of most immunological functions. The HIV virus has selective tropism for the T4 cell which expresses the CD4 phenotypic marker, a receptor for HIV. In fact, the key element in the profound immunosuppression seen in HIV infection is the depletion of this subset of T-lymphocytes.
High-molecular weight glycoproteins uniquely expressed on the surface of LEUKOCYTES and their hemopoietic progenitors. They contain a cytoplasmic protein tyrosine phosphatase activity which plays a role in intracellular signaling from the CELL SURFACE RECEPTORS. The CD45 antigens occur as multiple isoforms that result from alternative mRNA splicing and differential usage of three exons.
A family of spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one derivatives. These are used as dyes, as indicators for various metals, and as fluorescent labels in immunoassays.
Mature LYMPHOCYTES and MONOCYTES transported by the blood to the body's extravascular space. They are morphologically distinguishable from mature granulocytic leukocytes by their large, non-lobed nuclei and lack of coarse, heavily stained cytoplasmic granules.
Established cell cultures that have the potential to propagate indefinitely.
Microscopy of specimens stained with fluorescent dye (usually fluorescein isothiocyanate) or of naturally fluorescent materials, which emit light when exposed to ultraviolet or blue light. Immunofluorescence microscopy utilizes antibodies that are labeled with fluorescent dye.
The number of LYMPHOCYTES per unit volume of BLOOD.
The fission of a CELL. It includes CYTOKINESIS, when the CYTOPLASM of a cell is divided, and CELL NUCLEUS DIVISION.
The property of emitting radiation while being irradiated. The radiation emitted is usually of longer wavelength than that incident or absorbed, e.g., a substance can be irradiated with invisible radiation and emit visible light. X-ray fluorescence is used in diagnosis.
Cells grown in vitro from neoplastic tissue. If they can be established as a TUMOR CELL LINE, they can be propagated in cell culture indefinitely.
Extracellular vesicles generated by the shedding of CELL MEMBRANE blebs.
A variation of the PCR technique in which cDNA is made from RNA via reverse transcription. The resultant cDNA is then amplified using standard PCR protocols.
A protein of the annexin family isolated from human PLACENTA and other tissues. It inhibits cytosolic PHOSPHOLIPASE A2, and displays anticoagulant activity.
RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm.
Non-antibody proteins secreted by inflammatory leukocytes and some non-leukocytic cells, that act as intercellular mediators. They differ from classical hormones in that they are produced by a number of tissue or cell types rather than by specialized glands. They generally act locally in a paracrine or autocrine rather than endocrine manner.
White blood cells. These include granular leukocytes (BASOPHILS; EOSINOPHILS; and NEUTROPHILS) as well as non-granular leukocytes (LYMPHOCYTES and MONOCYTES).
White blood cells formed in the body's lymphoid tissue. The nucleus is round or ovoid with coarse, irregularly clumped chromatin while the cytoplasm is typically pale blue with azurophilic (if any) granules. Most lymphocytes can be classified as either T or B (with subpopulations of each), or NATURAL KILLER CELLS.
A classification of lymphocytes based on structurally or functionally different populations of cells.
DNA present in neoplastic tissue.
The number of CELLS of a specific kind, usually measured per unit volume or area of sample.
A light microscopic technique in which only a small spot is illuminated and observed at a time. An image is constructed through point-by-point scanning of the field in this manner. Light sources may be conventional or laser, and fluorescence or transmitted observations are possible.
The relationship between the dose of an administered drug and the response of the organism to the drug.
Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)
Identification of proteins or peptides that have been electrophoretically separated by blot transferring from the electrophoresis gel to strips of nitrocellulose paper, followed by labeling with antibody probes.
Lymphoid cells concerned with humoral immunity. They are short-lived cells resembling bursa-derived lymphocytes of birds in their production of immunoglobulin upon appropriate stimulation.
A series of progressive, overlapping events, triggered by exposure of the PLATELETS to subendothelial tissue. These events include shape change, adhesiveness, aggregation, and release reactions. When carried through to completion, these events lead to the formation of a stable hemostatic plug.
Histochemical localization of immunoreactive substances using labeled antibodies as reagents.
The study of the deformation and flow of matter, usually liquids or fluids, and of the plastic flow of solids. The concept covers consistency, dilatancy, liquefaction, resistance to flow, shearing, thixotrophy, and VISCOSITY.
Morphologic alteration of small B LYMPHOCYTES or T LYMPHOCYTES in culture into large blast-like cells able to synthesize DNA and RNA and to divide mitotically. It is induced by INTERLEUKINS; MITOGENS such as PHYTOHEMAGGLUTININS, and by specific ANTIGENS. It may also occur in vivo as in GRAFT REJECTION.
A classification of T-lymphocytes, especially into helper/inducer, suppressor/effector, and cytotoxic subsets, based on structurally or functionally different populations of cells.
A critical subpopulation of regulatory T-lymphocytes involved in MHC Class I-restricted interactions. They include both cytotoxic T-lymphocytes (T-LYMPHOCYTES, CYTOTOXIC) and CD8+ suppressor T-lymphocytes.
Granular leukocytes having a nucleus with three to five lobes connected by slender threads of chromatin, and cytoplasm containing fine inconspicuous granules and stainable by neutral dyes.
Cells contained in the bone marrow including fat cells (see ADIPOCYTES); STROMAL CELLS; MEGAKARYOCYTES; and the immediate precursors of most blood cells.
An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed.
The major interferon produced by mitogenically or antigenically stimulated LYMPHOCYTES. It is structurally different from TYPE I INTERFERON and its major activity is immunoregulation. It has been implicated in the expression of CLASS II HISTOCOMPATIBILITY ANTIGENS in cells that do not normally produce them, leading to AUTOIMMUNE DISEASES.
Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs.
Measurable and quantifiable biological parameters (e.g., specific enzyme concentration, specific hormone concentration, specific gene phenotype distribution in a population, presence of biological substances) which serve as indices for health- and physiology-related assessments, such as disease risk, psychiatric disorders, environmental exposure and its effects, disease diagnosis, metabolic processes, substance abuse, pregnancy, cell line development, epidemiologic studies, etc.
Complex of at least five membrane-bound polypeptides in mature T-lymphocytes that are non-covalently associated with one another and with the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL). The CD3 complex includes the gamma, delta, epsilon, zeta, and eta chains (subunits). When antigen binds to the T-cell receptor, the CD3 complex transduces the activating signals to the cytoplasm of the T-cell. The CD3 gamma and delta chains (subunits) are separate from and not related to the gamma/delta chains of the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL, GAMMA-DELTA).
The circulation of blood through the BLOOD VESSELS of the BRAIN.
Non-nucleated disk-shaped cells formed in the megakaryocyte and found in the blood of all mammals. They are mainly involved in blood coagulation.
Glycoproteins found on the membrane or surface of cells.
Test for tissue antigen using either a direct method, by conjugation of antibody with fluorescent dye (FLUORESCENT ANTIBODY TECHNIQUE, DIRECT) or an indirect method, by formation of antigen-antibody complex which is then labeled with fluorescein-conjugated anti-immunoglobulin antibody (FLUORESCENT ANTIBODY TECHNIQUE, INDIRECT). The tissue is then examined by fluorescence microscopy.
The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.
Protein analogs and derivatives of the Aequorea victoria green fluorescent protein that emit light (FLUORESCENCE) when excited with ULTRAVIOLET RAYS. They are used in REPORTER GENES in doing GENETIC TECHNIQUES. Numerous mutants have been made to emit other colors or be sensitive to pH.
The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment.
The chromosomal constitution of cells which deviate from the normal by the addition or subtraction of CHROMOSOMES, chromosome pairs, or chromosome fragments. In a normally diploid cell (DIPLOIDY) the loss of a chromosome pair is termed nullisomy (symbol: 2N-2), the loss of a single chromosome is MONOSOMY (symbol: 2N-1), the addition of a chromosome pair is tetrasomy (symbol: 2N+2), the addition of a single chromosome is TRISOMY (symbol: 2N+1).
The cells found in the body fluid circulating throughout the CARDIOVASCULAR SYSTEM.
The circulation of blood through the CORONARY VESSELS of the HEART.
Antigens on surfaces of cells, including infectious or foreign cells or viruses. They are usually protein-containing groups on cell membranes or walls and may be isolated.
Substances that inhibit or prevent the proliferation of NEOPLASMS.
Glycoproteins found on immature hematopoietic cells and endothelial cells. They are the only molecules to date whose expression within the blood system is restricted to a small number of progenitor cells in the bone marrow.
Adherence of cells to surfaces or to other cells.
A positive regulatory effect on physiological processes at the molecular, cellular, or systemic level. At the molecular level, the major regulatory sites include membrane receptors, genes (GENE EXPRESSION REGULATION), mRNAs (RNA, MESSENGER), and proteins.
The phenotypic manifestation of a gene or genes by the processes of GENETIC TRANSCRIPTION and GENETIC TRANSLATION.
Highly specialized EPITHELIAL CELLS that line the HEART; BLOOD VESSELS; and lymph vessels, forming the ENDOTHELIUM. They are polygonal in shape and joined together by TIGHT JUNCTIONS. The tight junctions allow for variable permeability to specific macromolecules that are transported across the endothelial layer.
Specialized cells of the hematopoietic system that have branch-like extensions. They are found throughout the lymphatic system, and in non-lymphoid tissues such as SKIN and the epithelia of the intestinal, respiratory, and reproductive tracts. They trap and process ANTIGENS, and present them to T-CELLS, thereby stimulating CELL-MEDIATED IMMUNITY. They are different from the non-hematopoietic FOLLICULAR DENDRITIC CELLS, which have a similar morphology and immune system function, but with respect to humoral immunity (ANTIBODY PRODUCTION).
The analysis of a chemical substance by inserting a sample into a carrier stream of reagent using a sample injection valve that propels the sample downstream where mixing occurs in a coiled tube, then passes into a flow-through detector and a recorder or other data handling device.
Glycolipid-anchored membrane glycoproteins expressed on cells of the myelomonocyte lineage including monocytes, macrophages, and some granulocytes. They function as receptors for the complex of lipopolysaccharide (LPS) and LPS-binding protein.
A short pro-domain caspase that plays an effector role in APOPTOSIS. It is activated by INITIATOR CASPASES such as CASPASE 9. Isoforms of this protein exist due to multiple alternative splicing of its MESSENGER RNA.
The metal-free red phycobilin pigment in a conjugated chromoprotein of red algae. It functions as a light-absorbing substance together with chlorophylls.
Cell adhesion molecule and CD antigen that mediates the adhesion of neutrophils and monocytes to activated platelets and endothelial cells.
A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine).
The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway.
Remnant of a tumor or cancer after primary, potentially curative therapy. (Dr. Daniel Masys, written communication)
Serum glycoprotein produced by activated MACROPHAGES and other mammalian MONONUCLEAR LEUKOCYTES. It has necrotizing activity against tumor cell lines and increases ability to reject tumor transplants. Also known as TNF-alpha, it is only 30% homologous to TNF-beta (LYMPHOTOXIN), but they share TNF RECEPTORS.
A subclass of HLA-D antigens that consist of alpha and beta chains. The inheritance of HLA-DR antigens differs from that of the HLA-DQ ANTIGENS and HLA-DP ANTIGENS.
Bone marrow-derived lymphocytes that possess cytotoxic properties, classically directed against transformed and virus-infected cells. Unlike T CELLS; and B CELLS; NK CELLS are not antigen specific. The cytotoxicity of natural killer cells is determined by the collective signaling of an array of inhibitory and stimulatory CELL SURFACE RECEPTORS. A subset of T-LYMPHOCYTES referred to as NATURAL KILLER T CELLS shares some of the properties of this cell type.
Specific molecular sites on the surface of various cells, including B-lymphocytes and macrophages, that combine with IMMUNOGLOBULIN Gs. Three subclasses exist: Fc gamma RI (the CD64 antigen, a low affinity receptor), Fc gamma RII (the CD32 antigen, a high affinity receptor), and Fc gamma RIII (the CD16 antigen, a low affinity receptor).
The continuous visual field seen by a subject through space and time.
The relatively long-lived phagocytic cell of mammalian tissues that are derived from blood MONOCYTES. Main types are PERITONEAL MACROPHAGES; ALVEOLAR MACROPHAGES; HISTIOCYTES; KUPFFER CELLS of the liver; and OSTEOCLASTS. They may further differentiate within chronic inflammatory lesions to EPITHELIOID CELLS or may fuse to form FOREIGN BODY GIANT CELLS or LANGHANS GIANT CELLS. (from The Dictionary of Cell Biology, Lackie and Dow, 3rd ed.)
Immunoglobulin molecules having a specific amino acid sequence by virtue of which they interact only with the ANTIGEN (or a very similar shape) that induced their synthesis in cells of the lymphoid series (especially PLASMA CELLS).
Single pavement layer of cells which line the luminal surface of the entire vascular system and regulate the transport of macromolecules and blood components.
A method for the study of certain organic compounds within cells, in situ, by measuring the light intensities of the selectively stained areas of cytoplasm. The compounds studied and their locations in the cells are made to fluoresce and are observed under a microscope.
CD4-positive T cells that inhibit immunopathology or autoimmune disease in vivo. They inhibit the immune response by influencing the activity of other cell types. Regulatory T-cells include naturally occurring CD4+CD25+ cells, IL-10 secreting Tr1 cells, and Th3 cells.
The lipid- and protein-containing, selectively permeable membrane that surrounds the cytoplasm in prokaryotic and eukaryotic cells.
Red blood cells. Mature erythrocytes are non-nucleated, biconcave disks containing HEMOGLOBIN whose function is to transport OXYGEN.
Naturally occurring or experimentally induced animal diseases with pathological processes sufficiently similar to those of human diseases. They are used as study models for human diseases.
Relatively undifferentiated cells that retain the ability to divide and proliferate throughout postnatal life to provide progenitor cells that can differentiate into specialized cells.
An encapsulated lymphatic organ through which venous blood filters.
A fluorescent probe with low toxicity which is a potent substrate for P-glycoprotein and the bacterial multidrug efflux transporter. It is used to assess mitochondrial bioenergetics in living cells and to measure the efflux activity of P-glycoprotein in both normal and malignant cells. (Leukemia 1997;11(7):1124-30)
The uptake of naked or purified DNA by CELLS, usually meaning the process as it occurs in eukaryotic cells. It is analogous to bacterial transformation (TRANSFORMATION, BACTERIAL) and both are routinely employed in GENE TRANSFER TECHNIQUES.
A promyelocytic cell line derived from a patient with ACUTE PROMYELOCYTIC LEUKEMIA. HL-60 cells lack specific markers for LYMPHOID CELLS but express surface receptors for FC FRAGMENTS and COMPLEMENT SYSTEM PROTEINS. They also exhibit phagocytic activity and responsiveness to chemotactic stimuli. (From Hay et al., American Type Culture Collection, 7th ed, pp127-8)
Methods for maintaining or growing CELLS in vitro.
A chronic leukemia characterized by abnormal B-lymphocytes and often generalized lymphadenopathy. In patients presenting predominately with blood and bone marrow involvement it is called chronic lymphocytic leukemia (CLL); in those predominately with enlarged lymph nodes it is called small lymphocytic lymphoma. These terms represent spectrums of the same disease.
Differentiation antigens expressed on B-lymphocytes and B-cell precursors. They are involved in regulation of B-cell proliferation.
Surface ligands, usually glycoproteins, that mediate cell-to-cell adhesion. Their functions include the assembly and interconnection of various vertebrate systems, as well as maintenance of tissue integration, wound healing, morphogenic movements, cellular migrations, and metastasis.
The 140 kDa isoform of NCAM (neural cell adhesion molecule) containing a transmembrane domain and short cytoplasmic tail. It is expressed by all lymphocytes mediating non-MHC restricted cytotoxicity and is present on some neural tissues and tumors.
The soft tissue filling the cavities of bones. Bone marrow exists in two types, yellow and red. Yellow marrow is found in the large cavities of large bones and consists mostly of fat cells and a few primitive blood cells. Red marrow is a hematopoietic tissue and is the site of production of erythrocytes and granular leukocytes. Bone marrow is made up of a framework of connective tissue containing branching fibers with the frame being filled with marrow cells.
Membrane proteins encoded by the BCL-2 GENES and serving as potent inhibitors of cell death by APOPTOSIS. The proteins are found on mitochondrial, microsomal, and NUCLEAR MEMBRANE sites within many cell types. Overexpression of bcl-2 proteins, due to a translocation of the gene, is associated with follicular lymphoma.
A method of non-invasive, continuous measurement of MICROCIRCULATION. The technique is based on the values of the DOPPLER EFFECT of low-power laser light scattered randomly by static structures and moving tissue particulates.
The movement of cells from one location to another. Distinguish from CYTOKINESIS which is the process of dividing the CYTOPLASM of a cell.
Splitting the DNA into shorter pieces by endonucleolytic DNA CLEAVAGE at multiple sites. It includes the internucleosomal DNA fragmentation, which along with chromatin condensation, are considered to be the hallmarks of APOPTOSIS.
Studies which start with the identification of persons with a disease of interest and a control (comparison, referent) group without the disease. The relationship of an attribute to the disease is examined by comparing diseased and non-diseased persons with regard to the frequency or levels of the attribute in each group.
The number of WHITE BLOOD CELLS per unit volume in venous BLOOD. A differential leukocyte count measures the relative numbers of the different types of white cells.
Methods utilizing the principles of MICROFLUIDICS for sample handling, reagent mixing, and separation and detection of specific components in fluids.
A negative regulatory effect on physiological processes at the molecular, cellular, or systemic level. At the molecular level, the major regulatory sites include membrane receptors, genes (GENE EXPRESSION REGULATION), mRNAs (RNA, MESSENGER), and proteins.
Progenitor cells from which all blood cells derive.
55-kDa antigens found on HELPER-INDUCER T-LYMPHOCYTES and on a variety of other immune cell types. CD4 antigens are members of the immunoglobulin supergene family and are implicated as associative recognition elements in MAJOR HISTOCOMPATIBILITY COMPLEX class II-restricted immune responses. On T-lymphocytes they define the helper/inducer subset. CD4 antigens also serve as INTERLEUKIN-15 receptors and bind to the HIV receptors, binding directly to the HIV ENVELOPE PROTEIN GP120.
A cationic cytochemical stain specific for cell nuclei, especially DNA. It is used as a supravital stain and in fluorescence cytochemistry. It may cause mutations in microorganisms.
A cell-separation technique where magnetizable microspheres or beads are first coated with monoclonal antibody, allowed to search and bind to target cells, and are then selectively removed when passed through a magnetic field. Among other applications, the technique is commonly used to remove tumor cells from the marrow (BONE MARROW PURGING) of patients who are to undergo autologous bone marrow transplantation.
A low affinity interleukin-2 receptor subunit that combines with the INTERLEUKIN-2 RECEPTOR BETA SUBUNIT and the INTERLEUKIN RECEPTOR COMMON GAMMA-CHAIN to form a high affinity receptor for INTERLEUKIN-2.
Antigens expressed on the cell membrane of T-lymphocytes during differentiation, activation, and normal and neoplastic transformation. Their phenotypic characterization is important in differential diagnosis and studies of thymic ontogeny and T-cell function.
Ratio of T-LYMPHOCYTES that express the CD4 ANTIGEN to those that express the CD8 ANTIGEN. This value is commonly assessed in the diagnosis and staging of diseases affecting the IMMUNE SYSTEM including HIV INFECTIONS.
A technique of culturing mixed cell types in vitro to allow their synergistic or antagonistic interactions, such as on CELL DIFFERENTIATION or APOPTOSIS. Coculture can be of different types of cells, tissues, or organs from normal or disease states.
An ERYTHROLEUKEMIA cell line derived from a CHRONIC MYELOID LEUKEMIA patient in BLAST CRISIS.
The movement of the BLOOD as it is pumped through the CARDIOVASCULAR SYSTEM.
Measurement of the maximum rate of airflow attained during a FORCED VITAL CAPACITY determination. Common abbreviations are PEFR and PFR.
Phase of the CELL CYCLE following G1 and preceding G2 when the entire DNA content of the nucleus is replicated. It is achieved by bidirectional replication at multiple sites along each chromosome.
Assaying the products of or monitoring various biochemical processes and reactions in an individual cell.
The engulfing and degradation of microorganisms; other cells that are dead, dying, or pathogenic; and foreign particles by phagocytic cells (PHAGOCYTES).
Antigens expressed primarily on the membranes of living cells during sequential stages of maturation and differentiation. As immunologic markers they have high organ and tissue specificity and are useful as probes in studies of normal cell development as well as neoplastic transformation.
Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control (induction or repression) of gene action at the level of transcription or translation.
Cells that line the inner and outer surfaces of the body by forming cellular layers (EPITHELIUM) or masses. Epithelial cells lining the SKIN; the MOUTH; the NOSE; and the ANAL CANAL derive from ectoderm; those lining the RESPIRATORY SYSTEM and the DIGESTIVE SYSTEM derive from endoderm; others (CARDIOVASCULAR SYSTEM and LYMPHATIC SYSTEM) derive from mesoderm. Epithelial cells can be classified mainly by cell shape and function into squamous, glandular and transitional epithelial cells.
Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility.
A bifunctional enzyme that catalyzes the synthesis and HYDROLYSIS of CYCLIC ADP-RIBOSE (cADPR) from NAD+ to ADP-RIBOSE. It is a cell surface molecule which is predominantly expressed on LYMPHOID CELLS and MYELOID CELLS.
The study of fluid channels and chambers of tiny dimensions of tens to hundreds of micrometers and volumes of nanoliters or picoliters. This is of interest in biological MICROCIRCULATION and used in MICROCHEMISTRY and INVESTIGATIVE TECHNIQUES.
Chemicals and substances that impart color including soluble dyes and insoluble pigments. They are used in INKS; PAINTS; and as INDICATORS AND REAGENTS.
A CD antigen that contains a conserved I domain which is involved in ligand binding. When combined with CD18 the two subunits form MACROPHAGE-1 ANTIGEN.
Compounds that contain three methine groups. They are frequently used as cationic dyes used for differential staining of biological materials.
In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships.
The chromosomal constitution of cells, in which each type of CHROMOSOME is represented twice. Symbol: 2N or 2X.
Proteins, glycoprotein, or lipoprotein moieties on surfaces of tumor cells that are usually identified by monoclonal antibodies. Many of these are of either embryonic or viral origin.
Methods used for detecting the amplified DNA products from the polymerase chain reaction as they accumulate instead of at the end of the reaction.
The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B.
A class of animal lectins that bind to carbohydrate in a calcium-dependent manner. They share a common carbohydrate-binding domain that is structurally distinct from other classes of lectins.
Proteins prepared by recombinant DNA technology.
An optical source that emits photons in a coherent beam. Light Amplification by Stimulated Emission of Radiation (LASER) is brought about using devices that transform light of varying frequencies into a single intense, nearly nondivergent beam of monochromatic radiation. Lasers operate in the infrared, visible, ultraviolet, or X-ray regions of the spectrum.
A broad class of substances containing carbon and its derivatives. Many of these chemicals will frequently contain hydrogen with or without oxygen, nitrogen, sulfur, phosphorus, and other elements. They exist in either carbon chain or carbon ring form.
The deformation and flow behavior of BLOOD and its elements i.e., PLASMA; ERYTHROCYTES; WHITE BLOOD CELLS; and BLOOD PLATELETS.
Molecules or ions formed by the incomplete one-electron reduction of oxygen. These reactive oxygen intermediates include SINGLET OXYGEN; SUPEROXIDES; PEROXIDES; HYDROXYL RADICAL; and HYPOCHLOROUS ACID. They contribute to the microbicidal activity of PHAGOCYTES, regulation of signal transduction and gene expression, and the oxidative damage to NUCLEIC ACIDS; PROTEINS; and LIPIDS.
A tumor necrosis factor receptor subtype found in a variety of tissues and on activated LYMPHOCYTES. It has specificity for FAS LIGAND and plays a role in regulation of peripheral immune responses and APOPTOSIS. Multiple isoforms of the protein exist due to multiple ALTERNATIVE SPLICING. The activated receptor signals via a conserved death domain that associates with specific TNF RECEPTOR-ASSOCIATED FACTORS in the CYTOPLASM.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
Methods used to study CELLS.
Mutant mice homozygous for the recessive gene "nude" which fail to develop a thymus. They are useful in tumor studies and studies on immune responses.
The voltage difference, normally maintained at approximately -180mV, across the INNER MITOCHONDRIAL MEMBRANE, by a net movement of positive charge across the membrane. It is a major component of the PROTON MOTIVE FORCE in MITOCHONDRIA used to drive the synthesis of ATP.
A family of intracellular CYSTEINE ENDOPEPTIDASES that play a role in regulating INFLAMMATION and APOPTOSIS. They specifically cleave peptides at a CYSTEINE amino acid that follows an ASPARTIC ACID residue. Caspases are activated by proteolytic cleavage of a precursor form to yield large and small subunits that form the enzyme. Since the cleavage site within precursors matches the specificity of caspases, sequential activation of precursors by activated caspases can occur.
They are oval or bean shaped bodies (1 - 30 mm in diameter) located along the lymphatic system.
Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.
A family of 3,6-di(substituted-amino)-9-benzoate derivatives of xanthene that are used as dyes and as indicators for various metals; also used as fluorescent tracers in histochemistry.
The rate dynamics in chemical or physical systems.
The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality.
A 67-kDa sialic acid binding lectin that is specific for MYELOID CELLS and MONOCYTE-MACROPHAGE PRECURSOR CELLS. This protein is the smallest siglec subtype and contains a single immunoglobulin C2-set domain. It may play a role in intracellular signaling via its interaction with SHP-1 PROTEIN-TYROSINE PHOSPHATASE and SHP-2 PROTEIN-TYROSINE PHOSPHATASE.
PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.
An adhesion-promoting leukocyte surface membrane heterodimer. The alpha subunit consists of the CD11b ANTIGEN and the beta subunit the CD18 ANTIGEN. The antigen, which is an integrin, functions both as a receptor for complement 3 and in cell-cell and cell-substrate adhesive interactions.
A subfamily in the family MURIDAE, comprising the hamsters. Four of the more common genera are Cricetus, CRICETULUS; MESOCRICETUS; and PHODOPUS.
A CELL LINE derived from human T-CELL LEUKEMIA and used to determine the mechanism of differential susceptibility to anti-cancer drugs and radiation.
Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action in neoplastic tissue.
Investigative and diagnostic methods and procedures based on the photoacoustic effect, which is the generation of SOUND WAVES from the absorption of ELECTROMAGNETIC RADIATION.
Agents employed in the preparation of histologic or pathologic specimens for the purpose of maintaining the existing form and structure of all of the constituent elements. Great numbers of different agents are used; some are also decalcifying and hardening agents. They must quickly kill and coagulate living tissue.
The quantity of volume or surface area of CELLS.
Surface antigens expressed on myeloid cells of the granulocyte-monocyte-histiocyte series during differentiation. Analysis of their reactivity in normal and malignant myelomonocytic cells is useful in identifying and classifying human leukemias and lymphomas.
Molecular products metabolized and secreted by neoplastic tissue and characterized biochemically in cells or body fluids. They are indicators of tumor stage and grade as well as useful for monitoring responses to treatment and predicting recurrence. Many chemical groups are represented including hormones, antigens, amino and nucleic acids, enzymes, polyamines, and specific cell membrane proteins and lipids.
Proteins whose abnormal expression (gain or loss) are associated with the development, growth, or progression of NEOPLASMS. Some neoplasm proteins are tumor antigens (ANTIGENS, NEOPLASM), i.e. they induce an immune reaction to their tumor. Many neoplasm proteins have been characterized and are used as tumor markers (BIOMARKERS, TUMOR) when they are detectable in cells and body fluids as monitors for the presence or growth of tumors. Abnormal expression of ONCOGENE PROTEINS is involved in neoplastic transformation, whereas the loss of expression of TUMOR SUPPRESSOR PROTEINS is involved with the loss of growth control and progression of the neoplasm.
Differentiation antigens found on thymocytes and on cytotoxic and suppressor T-lymphocytes. CD8 antigens are members of the immunoglobulin supergene family and are associative recognition elements in MHC (Major Histocompatibility Complex) Class I-restricted interactions.
The chromosomal constitution of a cell containing multiples of the normal number of CHROMOSOMES; includes triploidy (symbol: 3N), tetraploidy (symbol: 4N), etc.
Proteins which are found in membranes including cellular and intracellular membranes. They consist of two types, peripheral and integral proteins. They include most membrane-associated enzymes, antigenic proteins, transport proteins, and drug, hormone, and lectin receptors.
Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.
The force that opposes the flow of BLOOD through a vascular bed. It is equal to the difference in BLOOD PRESSURE across the vascular bed divided by the CARDIAC OUTPUT.
The circulation of the BLOOD through the MICROVASCULAR NETWORK.
Members of the class of compounds composed of AMINO ACIDS joined together by peptide bonds between adjacent amino acids into linear, branched or cyclical structures. OLIGOPEPTIDES are composed of approximately 2-12 amino acids. Polypeptides are composed of approximately 13 or more amino acids. PROTEINS are linear polypeptides that are normally synthesized on RIBOSOMES.
Acidic sulfated integral membrane glycoproteins expressed in several alternatively spliced and variable glycosylated forms on a wide variety of cell types including mature T-cells, B-cells, medullary thymocytes, granulocytes, macrophages, erythrocytes, and fibroblasts. CD44 antigens are the principle cell surface receptors for hyaluronate and this interaction mediates binding of lymphocytes to high endothelial venules. (From Abbas et al., Cellular and Molecular Immunology, 2d ed, p156)
A cell-surface ligand involved in leukocyte adhesion and inflammation. Its production is induced by gamma-interferon and it is required for neutrophil migration into inflamed tissue.
Leukocytes with abundant granules in the cytoplasm. They are divided into three groups according to the staining properties of the granules: neutrophilic, eosinophilic, and basophilic. Mature granulocytes are the NEUTROPHILS; EOSINOPHILS; and BASOPHILS.
Lipid-containing polysaccharides which are endotoxins and important group-specific antigens. They are often derived from the cell wall of gram-negative bacteria and induce immunoglobulin secretion. The lipopolysaccharide molecule consists of three parts: LIPID A, core polysaccharide, and O-specific chains (O ANTIGENS). When derived from Escherichia coli, lipopolysaccharides serve as polyclonal B-cell mitogens commonly used in laboratory immunology. (From Dorland, 28th ed)
A subclass of IMIDES with the general structure of pyrrolidinedione. They are prepared by the distillation of ammonium succinate. They are sweet-tasting compounds that are used as chemical intermediates and plant growth stimulants.
A type of IN SITU HYBRIDIZATION in which target sequences are stained with fluorescent dye so their location and size can be determined using fluorescence microscopy. This staining is sufficiently distinct that the hybridization signal can be seen both in metaphase spreads and in interphase nuclei.
A subclass of winged helix DNA-binding proteins that share homology with their founding member fork head protein, Drosophila.
A member of the Bcl-2 protein family and homologous partner of C-BCL-2 PROTO-ONCOGENE PROTEIN. It regulates the release of CYTOCHROME C and APOPTOSIS INDUCING FACTOR from the MITOCHONDRIA. Several isoforms of BCL2-associated X protein occur due to ALTERNATIVE SPLICING of the mRNA for this protein.
A soluble substance elaborated by antigen- or mitogen-stimulated T-LYMPHOCYTES which induces DNA synthesis in naive lymphocytes.
Connective tissue cells which secrete an extracellular matrix rich in collagen and other macromolecules.
A phthalic indicator dye that appears yellow-green in normal tear film and bright green in a more alkaline medium such as the aqueous humor.
The action of a drug in promoting or enhancing the effectiveness of another drug.
Mice homozygous for the mutant autosomal recessive gene "scid" which is located on the centromeric end of chromosome 16. These mice lack mature, functional lymphocytes and are thus highly susceptible to lethal opportunistic infections if not chronically treated with antibiotics. The lack of B- and T-cell immunity resembles severe combined immunodeficiency (SCID) syndrome in human infants. SCID mice are useful as animal models since they are receptive to implantation of a human immune system producing SCID-human (SCID-hu) hematochimeric mice.
Agents obtained from higher plants that have demonstrable cytostatic or antineoplastic activity.

Interleukin-8 receptor modulates IgE production and B-cell expansion and trafficking in allergen-induced pulmonary inflammation. (1/36125)

We examined the role of the interleukin-8 (IL-8) receptor in a murine model of allergen-induced pulmonary inflammation using mice with a targeted deletion of the murine IL-8 receptor homologue (IL-8r-/-). Wild-type (Wt) and IL-8r-/- mice were systemically immunized to ovalbumin (OVA) and were exposed with either single or multiple challenge of aerosolized phosphate-buffered saline (OVA/PBS) or OVA (OVA/OVA). Analysis of cells recovered from bronchoalveolar lavage (BAL) revealed a diminished recruitment of neutrophils to the airway lumen after single challenge in IL-8r-/- mice compared with Wt mice, whereas multiply challenged IL-8r-/- mice had increased B cells and fewer neutrophils compared with Wt mice. Both Wt and IL-8r-/- OVA/OVA mice recruited similar numbers of eosinophils to the BAL fluid and exhibited comparable degrees of pulmonary inflammation histologically. Both total and OVA-specific IgE levels were greater in multiply challenged IL-8r-/- OVA/OVA mice than in Wt mice. Both the IL-8r-/- OVA/OVA and OVA/PBS mice were significantly less responsive to methacholine than their respective Wt groups, but both Wt and IL-8r mice showed similar degrees of enhancement after multiple allergen challenge. The data demonstrate that the IL-8r modulates IgE production, airway responsiveness, and the composition of the cells (B cells and neutrophils) recruited to the airway lumen in response to antigen.  (+info)

Cystic fibrosis transmembrane conductance regulator-mediated corneal epithelial cell ingestion of Pseudomonas aeruginosa is a key component in the pathogenesis of experimental murine keratitis. (2/36125)

Previous findings indicate that the cystic fibrosis transmembrane conductance regulator (CFTR) is a ligand for Pseudomonas aeruginosa ingestion into respiratory epithelial cells. In experimental murine keratitis, P. aeruginosa enters corneal epithelial cells. We determined the importance of CFTR-mediated uptake of P. aeruginosa by corneal cells in experimental eye infections. Entry of noncytotoxic (exoU) P. aeruginosa into human and rabbit corneal cell cultures was inhibited with monoclonal antibodies and peptides specific to CFTR amino acids 108 to 117. Immunofluorescence microscopy and flow cytometry demonstrated CFTR in the intact murine corneal epithelium, and electron microscopy showed that CFTR binds to P. aeruginosa following corneal cell ingestion. In experimental murine eye infections, multiple additions of 5 nM CFTR peptide 103-117 to inocula of either cytotoxic (exoU+) or noncytotoxic P. aeruginosa resulted in large reductions in bacteria in the eye and markedly lessened eye pathology. Compared with wild-type C57BL/6 mice, heterozygous DeltaF508 Cftr mice infected with P. aeruginosa had an approximately 10-fold reduction in bacterial levels in the eye and consequent reductions in eye pathology. Homozygous DeltaF508 Cftr mice were nearly completely resistant to P. aeruginosa corneal infection. CFTR-mediated internalization of P. aeruginosa by buried corneal epithelial cells is critical to the pathogenesis of experimental eye infection, while in the lung, P. aeruginosa uptake by surface epithelial cells enhances P. aeruginosa clearance from this tissue.  (+info)

Altered trafficking of lysosomal proteins in Hermansky-Pudlak syndrome due to mutations in the beta 3A subunit of the AP-3 adaptor. (3/36125)

Hermansky-Pudlak syndrome (HPS) is a genetic disorder characterized by defective lysosome-related organelles. Here, we report the identification of two HPS patients with mutations in the beta 3A subunit of the heterotetrameric AP-3 complex. The patients' fibroblasts exhibit drastically reduced levels of AP-3 due to enhanced degradation of mutant beta 3A. The AP-3 deficiency results in increased surface expression of the lysosomal membrane proteins CD63, lamp-1, and lamp-2, but not of nonlysosomal proteins. These differential effects are consistent with the preferential interaction of the AP-3 mu 3A subunit with tyrosine-based signals involved in lysosomal targeting. Our results suggest that AP-3 functions in protein sorting to lysosomes and provide an example of a human disease in which altered trafficking of integral membrane proteins is due to mutations in a component of the sorting machinery.  (+info)

Enhanced myocardial glucose use in patients with a deficiency in long-chain fatty acid transport (CD36 deficiency). (4/36125)

CD36 is a multifunctional, 88 kDa glycoprotein that is expressed on platelets and monocytes/macrophages. CD36 also has high homology with the long-chain fatty acid (LFA) transporter in the myocardium. Although platelet and monocyte CD36 levels can indicate a CD36 deficiency, they cannot predict specific clinical manifestations in the myocardium of a given person. We examined the hypothesis that a deficiency in LFA transport augments myocardial glucose uptake in patients with a type I CD36 deficiency. METHODS: Seven fasting patients with a type I CD36 deficiency and 9 controls were assessed by cardiac radionuclide imaging using beta-methyl-p-iodophenyl-pentadecanoic acid (BMIPP) as a LFA tracer and by PET with 18F-fluorodeoxyglucose (FDG). RESULTS: None of the patients with a CD36 deficiency showed myocardial uptake of BMIPP. The percentage dose uptake of BMIPP in these subjects was significantly lower than that in normal controls (1.31+/-0.24 versus 2.90+/-0.2; P < 0.005). PET studies revealed that myocardial FDG accumulation was substantially increased in patients with a CD36 deficiency. Quantitative analysis showed that the percentage dose uptake of FDG in patients with a CD36 deficiency was significantly higher than that in normal controls (1.28+/-0.35 versus 0.43+/-0.22; P< 0.01). CONCLUSION: CD36 functions as a major myocardial LFA transporter and its absence may cause a compensatory upregulation of myocardial glucose uptake.  (+info)

Proliferation and differentiation of rat theca-interstitial cells: comparison of effects induced by platelet-derived growth factor and insulin-like growth factor-I. (5/36125)

This study was designed to evaluate mechanisms regulating proliferation of steroidogenically active and steroidogenically inactive theca-interstitial (T-I) cells, and, specifically, to evaluate the effects of platelet-derived growth factor (PDGF) and insulin-like growth factor-I (IGF-I). T-I cells obtained from immature Sprague-Dawley rats were cultured in chemically defined media. Proliferation was assayed by thymidine incorporation and cell counting. Steroidogenically active cells were identified by the presence of 3beta-hydroxysteroid dehydrogenase activity. Flow cytometry facilitated separation of dividing cells (in S and G2/M phases of the cell cycle) from nondividing cells (in G0 and G1 phases of the cell cycle). PDGF alone (0.1-1 nM) produced a dose-dependent increase in DNA synthesis by up to 136%. IGF-I alone (10 nM) increased DNA synthesis by 56%. In the presence of both IGF-I (10 nM) and PDGF (0.1-1 nM), DNA synthesis increased by 108-214%. PDGF (1 nM) increased the total number of T-I cells by 43%; this effect was due to an increase in the number of steroidogenically inactive cells (47%). In contrast, the stimulatory effect of IGF-I (10 nM) was predominantly due to an increase in the number of steroidogenically active cells (163%). Separation of dividing cells from nondividing cells was accomplished with the aid of flow cytometry. In the absence of growth factors, the proportion of steroidogenically active cells was 35% lower among proliferating than resting cells. PDGF (1 nM) decreased the proportion of steroidogenically active cells among both proliferating and resting cells (by 43% and 16%, respectively). In contrast, IGF-I (10 nM) increased the proportion of steroidogenically active cells among proliferating cells by 56%. These findings indicate that differentiated/steroidogenically active cells divide; furthermore, PDGF and IGF-I may selectively stimulate proliferation of individual subpopulations of T-I cells, thereby providing a mechanism for development of structural and steroidogenically active components of the T-I compartment.  (+info)

Use of RhD fusion protein expressed on K562 cell surface in the study of molecular basis for D antigenic epitopes. (6/36125)

The human D antigens, one of the most clinically important blood groups, are presented by RhD protein with a putative 12 transmembrane topology. To understand the molecular basis for the complex antigenic profile of RhD protein, we expressed a series of RhD fusion proteins using different portions of Duffy protein as a tag in erythroleukemic K562 cells. Because the reactivity of monoclonal anti-RhD antibody, LOR15C9, depends mainly on the sequence coded by exon 7 of RhD, we altered DNA sequence corresponding to the amino acid residues 323-331(A) and 350-354(B) in the exon 7. The mutation in region B resulted in a severe reduction in LOR15C9 binding by flow cytometry analysis, suggesting that region B may play an important role in constituting antigen epitopes recognized by LOR15C9. On the other hand, a slight decrease in the antibody binding was observed for the region A mutant, suggesting that the intracellularly located region A may elicit a long distance effect on the formation of exofacial antigen epitopes. In addition, using various monoclonal antibodies against RhD, we compared the antigenic profile of expressed RhD fusion protein with that of endogenous RhD in K562 cells as well as in erythrocytes.  (+info)

Phenotypic and functional characterisation of myofibroblasts, macrophages, and lymphocytes migrating out of the human gastric lamina propria following the loss of epithelial cells. (7/36125)

BACKGROUND: The basement membrane of human colonic mucosa contains numerous discrete pores. We have recently shown that following loss of the surface epithelium, many cells migrate out of the colonic lamina propria via basement membrane pores. AIMS: To characterise cells migrating out via basement membrane pores of the human gastric lamina propria, following loss of the surface epithelium. METHODS: Fresh human gastric mucosal samples were completely denuded of epithelial cells and placed in culture. Tissue samples were studied by electron microscopy (EM) and cells by EM, FACS analysis, immunohistochemistry, and reverse transcription polymerase chain reaction (RT-PCR). RESULTS: EM showed numerous discrete pores (0. 65-8.29 microm in diameter) in the subepithelial basement membrane. During culture of mucosal samples denuded of epithelial cells, lymphocytes, macrophages, and myofibroblasts migrated out of the lamina propria via the basement membrane pores. The lymphocytes were predominantly CD45RO+ and CD69+ T cells. Macrophages were shown to express cyclooxygenase (COX) 1 and 2 enzymes. Myofibroblasts were established in culture and, despite prolonged culture and passage, retained their phenotype. They expressed mRNA and protein for COX 1 and 2 enzymes and their release of prostaglandin E2 was inhibited by selective COX 1 and 2 inhibitors. CONCLUSIONS: Lamina propria cells migrating out of cultured denuded gastric mucosal samples have been characterised phenotypically and functionally. Such cells would be suitable for studies of their interactions with epithelial cells and also with Helicobacter pylori and its products.  (+info)

Adenovirus mediated p53 tumour suppressor gene therapy for human gastric cancer cells in vitro and in vivo. (8/36125)

BACKGROUND/AIMS: Gastric cancer is one of the most prevalent forms of cancer in East Asia. Point mutation of the p53 gene has been reported in more than 60% of cases of gastric cancer and can lead to genetic instability and uncontrolled cell proliferation. The purpose of this investigation was to evaluate the potential of p53 gene therapy for gastric cancer. METHODS: The responses of human gastric cancer cell lines, MKN1, MKN7, MKN28, MKN45, and TMK-1, to recombinant adenoviruses encoding wild type p53 (AdCAp53) were analysed in vitro. The efficacy of the AdCAp53 treatment for MKN1 and MKN45 subcutaneous tumours in nude mice was assessed in vivo. RESULTS: p53-specific growth inhibition was observed in vitro in two of four gastric cancer cell lines with mutated p53, but not in the wild type p53 cell line. The mechanism of the killing of gastric cancer cells by AdCAp53 was found, by flow cytometric analysis and detection of DNA fragmentation, to be apoptosis. In vivo studies showed that the growth of subcutaneous tumours of p53 mutant MKN1 cells was significantly inhibited by direct injection of AdCAp53, but no significant growth inhibition was detected in the growth of p53 wild type MKN45 tumours. CONCLUSIONS: Adenovirus mediated reintroduction of wild type p53 is a potential clinical utility in gene therapy for gastric cancers.  (+info)

There are several types of aneuploidy, including:

1. Trisomy: This is the presence of an extra copy of a chromosome. For example, Down syndrome is caused by an extra copy of chromosome 21 (trisomy 21).
2. Monosomy: This is the absence of a chromosome.
3. Mosaicism: This is the presence of both normal and abnormal cells in the body.
4. Uniparental disomy: This is the presence of two copies of a chromosome from one parent, rather than one copy each from both parents.

Aneuploidy can occur due to various factors such as errors during cell division, exposure to certain chemicals or radiation, or inheritance of an abnormal number of chromosomes from one's parents. The risk of aneuploidy increases with age, especially for women over the age of 35, as their eggs are more prone to errors during meiosis (the process by which egg cells are produced).

Aneuploidy can be diagnosed through various methods such as karyotyping (examining chromosomes under a microscope), fluorescence in situ hybridization (FISH) or quantitative PCR. Treatment for aneuploidy depends on the underlying cause and the specific health problems it has caused. In some cases, treatment may involve managing symptoms, while in others, it may involve correcting the genetic abnormality itself.

In summary, aneuploidy is a condition where there is an abnormal number of chromosomes present in a cell, which can lead to various developmental and health problems. It can occur due to various factors and can be diagnosed through different methods. Treatment depends on the underlying cause and the specific health problems it has caused.

A residual neoplasm is a remaining portion of a tumor that may persist after primary treatment. This can occur when the treatment does not completely remove all of the cancer cells or if some cancer cells are resistant to the treatment. Residual neoplasms can be benign (non-cancerous) or malignant (cancerous).

It is important to note that a residual neoplasm does not necessarily mean that the cancer has come back. In some cases, a residual neoplasm may be present from the start and may not grow or change over time.

Residual neoplasms can be managed with additional treatment, such as surgery, chemotherapy, or radiation therapy. The choice of treatment depends on the type of cancer, the size and location of the residual neoplasm, and other factors.

It is important to follow up with your healthcare provider regularly to monitor the residual neoplasm and ensure that it is not growing or causing any symptoms.

1) They share similarities with humans: Many animal species share similar biological and physiological characteristics with humans, making them useful for studying human diseases. For example, mice and rats are often used to study diseases such as diabetes, heart disease, and cancer because they have similar metabolic and cardiovascular systems to humans.

2) They can be genetically manipulated: Animal disease models can be genetically engineered to develop specific diseases or to model human genetic disorders. This allows researchers to study the progression of the disease and test potential treatments in a controlled environment.

3) They can be used to test drugs and therapies: Before new drugs or therapies are tested in humans, they are often first tested in animal models of disease. This allows researchers to assess the safety and efficacy of the treatment before moving on to human clinical trials.

4) They can provide insights into disease mechanisms: Studying disease models in animals can provide valuable insights into the underlying mechanisms of a particular disease. This information can then be used to develop new treatments or improve existing ones.

5) Reduces the need for human testing: Using animal disease models reduces the need for human testing, which can be time-consuming, expensive, and ethically challenging. However, it is important to note that animal models are not perfect substitutes for human subjects, and results obtained from animal studies may not always translate to humans.

6) They can be used to study infectious diseases: Animal disease models can be used to study infectious diseases such as HIV, TB, and malaria. These models allow researchers to understand how the disease is transmitted, how it progresses, and how it responds to treatment.

7) They can be used to study complex diseases: Animal disease models can be used to study complex diseases such as cancer, diabetes, and heart disease. These models allow researchers to understand the underlying mechanisms of the disease and test potential treatments.

8) They are cost-effective: Animal disease models are often less expensive than human clinical trials, making them a cost-effective way to conduct research.

9) They can be used to study drug delivery: Animal disease models can be used to study drug delivery and pharmacokinetics, which is important for developing new drugs and drug delivery systems.

10) They can be used to study aging: Animal disease models can be used to study the aging process and age-related diseases such as Alzheimer's and Parkinson's. This allows researchers to understand how aging contributes to disease and develop potential treatments.

In LLCB, the B cells undergo a mutation that causes them to become cancerous and multiply rapidly. This can lead to an overproduction of these cells in the bone marrow, causing the bone marrow to become crowded and unable to produce healthy red blood cells, platelets, and white blood cells.

LLCB is typically a slow-growing cancer, and it can take years for symptoms to develop. However, as the cancer progresses, it can lead to a range of symptoms including fatigue, weakness, weight loss, fever, night sweats, and swollen lymph nodes.

LLCB is typically diagnosed through a combination of physical examination, blood tests, bone marrow biopsy, and imaging studies such as X-rays or CT scans. Treatment options for LLCB include chemotherapy, radiation therapy, and in some cases, stem cell transplantation.

Overall, while LLCB is a serious condition, it is typically slow-growing and can be managed with appropriate treatment. With current treatments, many people with LLCB can achieve long-term remission and a good quality of life.

Polyploidy is a condition where an organism has more than two sets of chromosomes, which are the thread-like structures that carry genetic information. It can occur in both plants and animals, although it is relatively rare in most species. In humans, polyploidy is extremely rare and usually occurs as a result of errors during cell division or abnormal fertilization.

In medicine, polyploidy is often used to describe certain types of cancer, such as breast cancer or colon cancer, that have extra sets of chromosomes. This can lead to the development of more aggressive and difficult-to-treat tumors.

However, not all cases of polyploidy are cancerous. Some individuals with Down syndrome, for example, have an extra copy of chromosome 21, which is a non-cancerous form of polyploidy. Additionally, some people may be born with extra copies of certain genes or chromosomal regions due to errors during embryonic development, which can lead to various health problems but are not cancerous.

Overall, the term "polyploidy" in medicine is used to describe any condition where an organism has more than two sets of chromosomes, regardless of whether it is cancerous or non-cancerous.

There are several different types of leukemia, including:

1. Acute Lymphoblastic Leukemia (ALL): This is the most common type of leukemia in children, but it can also occur in adults. It is characterized by an overproduction of immature white blood cells called lymphoblasts.
2. Acute Myeloid Leukemia (AML): This type of leukemia affects the bone marrow's ability to produce red blood cells, platelets, and other white blood cells. It can occur at any age but is most common in adults.
3. Chronic Lymphocytic Leukemia (CLL): This type of leukemia affects older adults and is characterized by the slow growth of abnormal white blood cells called lymphocytes.
4. Chronic Myeloid Leukemia (CML): This type of leukemia is caused by a genetic mutation in a gene called BCR-ABL. It can occur at any age but is most common in adults.
5. Hairy Cell Leukemia: This is a rare type of leukemia that affects older adults and is characterized by the presence of abnormal white blood cells called hairy cells.
6. Myelodysplastic Syndrome (MDS): This is a group of disorders that occur when the bone marrow is unable to produce healthy blood cells. It can lead to leukemia if left untreated.

Treatment for leukemia depends on the type and severity of the disease, but may include chemotherapy, radiation therapy, targeted therapy, or stem cell transplantation.

Examples of acute diseases include:

1. Common cold and flu
2. Pneumonia and bronchitis
3. Appendicitis and other abdominal emergencies
4. Heart attacks and strokes
5. Asthma attacks and allergic reactions
6. Skin infections and cellulitis
7. Urinary tract infections
8. Sinusitis and meningitis
9. Gastroenteritis and food poisoning
10. Sprains, strains, and fractures.

Acute diseases can be treated effectively with antibiotics, medications, or other therapies. However, if left untreated, they can lead to chronic conditions or complications that may require long-term care. Therefore, it is important to seek medical attention promptly if symptoms persist or worsen over time.

Necrosis is a type of cell death that occurs when cells are exposed to excessive stress, injury, or inflammation, leading to damage to the cell membrane and the release of cellular contents into the surrounding tissue. This can lead to the formation of gangrene, which is the death of body tissue due to lack of blood supply.

There are several types of necrosis, including:

1. Coagulative necrosis: This type of necrosis occurs when there is a lack of blood supply to the tissues, leading to the formation of a firm, white plaque on the surface of the affected area.
2. Liquefactive necrosis: This type of necrosis occurs when there is an infection or inflammation that causes the death of cells and the formation of pus.
3. Caseous necrosis: This type of necrosis occurs when there is a chronic infection, such as tuberculosis, and the affected tissue becomes soft and cheese-like.
4. Fat necrosis: This type of necrosis occurs when there is trauma to fatty tissue, leading to the formation of firm, yellowish nodules.
5. Necrotizing fasciitis: This is a severe and life-threatening form of necrosis that affects the skin and underlying tissues, often as a result of bacterial infection.

The diagnosis of necrosis is typically made through a combination of physical examination, imaging studies such as X-rays or CT scans, and laboratory tests such as biopsy. Treatment depends on the underlying cause of the necrosis and may include antibiotics, surgical debridement, or amputation in severe cases.

The disorder is caused by mutations in the HBB gene that codes for the beta-globin subunit of hemoglobin. These mutations result in the production of abnormal hemoglobins that are unstable and prone to breakdown, leading to the release of free hemoglobin into the urine.

HP is classified into two types based on the severity of symptoms:

1. Type 1 HP: This is the most common form of the disorder and is characterized by mild to moderate anemia, occasional hemoglobinuria, and a normal life expectancy.
2. Type 2 HP: This is a more severe form of the disorder and is characterized by severe anemia, recurrent hemoglobinuria, and a shorter life expectancy.

There is no cure for HP, but treatment options are available to manage symptoms and prevent complications. These may include blood transfusions, folic acid supplements, and medications to reduce the frequency and severity of hemoglobinuria episodes.

There are several key features of inflammation:

1. Increased blood flow: Blood vessels in the affected area dilate, allowing more blood to flow into the tissue and bringing with it immune cells, nutrients, and other signaling molecules.
2. Leukocyte migration: White blood cells, such as neutrophils and monocytes, migrate towards the site of inflammation in response to chemical signals.
3. Release of mediators: Inflammatory mediators, such as cytokines and chemokines, are released by immune cells and other cells in the affected tissue. These molecules help to coordinate the immune response and attract more immune cells to the site of inflammation.
4. Activation of immune cells: Immune cells, such as macrophages and T cells, become activated and start to phagocytose (engulf) pathogens or damaged tissue.
5. Increased heat production: Inflammation can cause an increase in metabolic activity in the affected tissue, leading to increased heat production.
6. Redness and swelling: Increased blood flow and leakiness of blood vessels can cause redness and swelling in the affected area.
7. Pain: Inflammation can cause pain through the activation of nociceptors (pain-sensing neurons) and the release of pro-inflammatory mediators.

Inflammation can be acute or chronic. Acute inflammation is a short-term response to injury or infection, which helps to resolve the issue quickly. Chronic inflammation is a long-term response that can cause ongoing damage and diseases such as arthritis, asthma, and cancer.

There are several types of inflammation, including:

1. Acute inflammation: A short-term response to injury or infection.
2. Chronic inflammation: A long-term response that can cause ongoing damage and diseases.
3. Autoimmune inflammation: An inappropriate immune response against the body's own tissues.
4. Allergic inflammation: An immune response to a harmless substance, such as pollen or dust mites.
5. Parasitic inflammation: An immune response to parasites, such as worms or fungi.
6. Bacterial inflammation: An immune response to bacteria.
7. Viral inflammation: An immune response to viruses.
8. Fungal inflammation: An immune response to fungi.

There are several ways to reduce inflammation, including:

1. Medications such as nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids, and disease-modifying anti-rheumatic drugs (DMARDs).
2. Lifestyle changes, such as a healthy diet, regular exercise, stress management, and getting enough sleep.
3. Alternative therapies, such as acupuncture, herbal supplements, and mind-body practices.
4. Addressing underlying conditions, such as hormonal imbalances, gut health issues, and chronic infections.
5. Using anti-inflammatory compounds found in certain foods, such as omega-3 fatty acids, turmeric, and ginger.

It's important to note that chronic inflammation can lead to a range of health problems, including:

1. Arthritis
2. Diabetes
3. Heart disease
4. Cancer
5. Alzheimer's disease
6. Parkinson's disease
7. Autoimmune disorders, such as lupus and rheumatoid arthritis.

Therefore, it's important to manage inflammation effectively to prevent these complications and improve overall health and well-being.

There are several types of lymphoma, including:

1. Hodgkin lymphoma: This is a type of lymphoma that originates in the white blood cells called Reed-Sternberg cells. It is characterized by the presence of giant cells with multiple nucleoli.
2. Non-Hodgkin lymphoma (NHL): This is a type of lymphoma that does not meet the criteria for Hodgkin lymphoma. There are many subtypes of NHL, each with its own unique characteristics and behaviors.
3. Cutaneous lymphoma: This type of lymphoma affects the skin and can take several forms, including cutaneous B-cell lymphoma and cutaneous T-cell lymphoma.
4. Primary central nervous system (CNS) lymphoma: This is a rare type of lymphoma that develops in the brain or spinal cord.
5. Post-transplantation lymphoproliferative disorder (PTLD): This is a type of lymphoma that develops in people who have undergone an organ transplant, often as a result of immunosuppressive therapy.

The symptoms of lymphoma can vary depending on the type and location of the cancer. Some common symptoms include:

* Swollen lymph nodes
* Fever
* Fatigue
* Weight loss
* Night sweats
* Itching

Lymphoma is diagnosed through a combination of physical examination, imaging tests (such as CT scans or PET scans), and biopsies. Treatment options for lymphoma depend on the type and stage of the cancer, and may include chemotherapy, radiation therapy, immunotherapy, or stem cell transplantation.

Overall, lymphoma is a complex and diverse group of cancers that can affect people of all ages and backgrounds. While it can be challenging to diagnose and treat, advances in medical technology and research have improved the outlook for many patients with lymphoma.

There are different types of Breast Neoplasms such as:

1. Fibroadenomas: These are benign tumors that are made up of glandular and fibrous tissues. They are usually small and round, with a smooth surface, and can be moved easily under the skin.

2. Cysts: These are fluid-filled sacs that can develop in both breast tissue and milk ducts. They are usually benign and can disappear on their own or be drained surgically.

3. Ductal Carcinoma In Situ (DCIS): This is a precancerous condition where abnormal cells grow inside the milk ducts. If left untreated, it can progress to invasive breast cancer.

4. Invasive Ductal Carcinoma (IDC): This is the most common type of breast cancer and starts in the milk ducts but grows out of them and invades surrounding tissue.

5. Invasive Lobular Carcinoma (ILC): It originates in the milk-producing glands (lobules) and grows out of them, invading nearby tissue.

Breast Neoplasms can cause various symptoms such as a lump or thickening in the breast or underarm area, skin changes like redness or dimpling, change in size or shape of one or both breasts, discharge from the nipple, and changes in the texture or color of the skin.

Treatment options for Breast Neoplasms may include surgery such as lumpectomy, mastectomy, or breast-conserving surgery, radiation therapy which uses high-energy beams to kill cancer cells, chemotherapy using drugs to kill cancer cells, targeted therapy which uses drugs or other substances to identify and attack cancer cells while minimizing harm to normal cells, hormone therapy, immunotherapy, and clinical trials.

It is important to note that not all Breast Neoplasms are cancerous; some are benign (non-cancerous) tumors that do not spread or grow.

There are several symptoms of RA, including:

1. Joint pain and stiffness, especially in the hands and feet
2. Swollen and warm joints
3. Redness and tenderness in the affected areas
4. Fatigue, fever, and loss of appetite
5. Loss of range of motion in the affected joints
6. Firm bumps of tissue under the skin (rheumatoid nodules)

RA can be diagnosed through a combination of physical examination, medical history, blood tests, and imaging studies such as X-rays or ultrasound. Treatment typically involves a combination of medications, including nonsteroidal anti-inflammatory drugs (NSAIDs), disease-modifying anti-rheumatic drugs (DMARDs), and biologic agents. Lifestyle modifications such as exercise and physical therapy can also be helpful in managing symptoms and improving quality of life.

There is no cure for RA, but early diagnosis and aggressive treatment can help to slow the progression of the disease and reduce symptoms. With proper management, many people with RA are able to lead active and fulfilling lives.

There are several risk factors for developing HCC, including:

* Cirrhosis, which can be caused by heavy alcohol consumption, viral hepatitis (such as hepatitis B and C), or fatty liver disease
* Family history of liver disease
* Chronic obstructive pulmonary disease (COPD)
* Diabetes
* Obesity

HCC can be challenging to diagnose, as the symptoms are non-specific and can be similar to those of other conditions. However, some common symptoms of HCC include:

* Yellowing of the skin and eyes (jaundice)
* Fatigue
* Loss of appetite
* Abdominal pain or discomfort
* Weight loss

If HCC is suspected, a doctor may perform several tests to confirm the diagnosis, including:

* Imaging tests, such as ultrasound, CT scan, or MRI, to look for tumors in the liver
* Blood tests to check for liver function and detect certain substances that are produced by the liver
* Biopsy, which involves removing a small sample of tissue from the liver to examine under a microscope

Once HCC is diagnosed, treatment options will depend on several factors, including the stage and location of the cancer, the patient's overall health, and their personal preferences. Treatment options may include:

* Surgery to remove the tumor or parts of the liver
* Ablation, which involves destroying the cancer cells using heat or cold
* Chemoembolization, which involves injecting chemotherapy drugs into the hepatic artery to reach the cancer cells
* Targeted therapy, which uses drugs or other substances to target specific molecules that are involved in the growth and spread of the cancer

Overall, the prognosis for HCC is poor, with a 5-year survival rate of approximately 20%. However, early detection and treatment can improve outcomes. It is important for individuals at high risk for HCC to be monitored regularly by a healthcare provider, and to seek medical attention if they experience any symptoms.

Multiple myeloma is the second most common type of hematologic cancer after non-Hodgkin's lymphoma, accounting for approximately 1% of all cancer deaths worldwide. It is more common in older adults, with most patients being diagnosed over the age of 65.

The exact cause of multiple myeloma is not known, but it is believed to be linked to genetic mutations that occur in the plasma cells. There are several risk factors that have been associated with an increased risk of developing multiple myeloma, including:

1. Family history: Having a family history of multiple myeloma or other plasma cell disorders increases the risk of developing the disease.
2. Age: The risk of developing multiple myeloma increases with age, with most patients being diagnosed over the age of 65.
3. Race: African Americans are at higher risk of developing multiple myeloma than other races.
4. Obesity: Being overweight or obese may increase the risk of developing multiple myeloma.
5. Exposure to certain chemicals: Exposure to certain chemicals such as pesticides, solvents, and heavy metals has been linked to an increased risk of developing multiple myeloma.

The symptoms of multiple myeloma can vary depending on the severity of the disease and the organs affected. Common symptoms include:

1. Bone pain: Pain in the bones, particularly in the spine, ribs, or long bones, is a common symptom of multiple myeloma.
2. Fatigue: Feeling tired or weak is another common symptom of the disease.
3. Infections: Patients with multiple myeloma may be more susceptible to infections due to the impaired functioning of their immune system.
4. Bone fractures: Weakened bones can lead to an increased risk of fractures, particularly in the spine, hips, or ribs.
5. Kidney problems: Multiple myeloma can cause damage to the kidneys, leading to problems such as kidney failure or proteinuria (excess protein in the urine).
6. Anemia: A low red blood cell count can cause anemia, which can lead to fatigue, weakness, and shortness of breath.
7. Increased calcium levels: High levels of calcium in the blood can cause symptoms such as nausea, vomiting, constipation, and confusion.
8. Neurological problems: Multiple myeloma can cause neurological problems such as headaches, numbness or tingling in the arms and legs, and difficulty with coordination and balance.

The diagnosis of multiple myeloma typically involves a combination of physical examination, medical history, and laboratory tests. These may include:

1. Complete blood count (CBC): A CBC can help identify abnormalities in the numbers and characteristics of different types of blood cells, including red blood cells, white blood cells, and platelets.
2. Serum protein electrophoresis (SPEP): This test measures the levels of different proteins in the blood, including immunoglobulins (antibodies) and abnormal proteins produced by myeloma cells.
3. Urine protein electrophoresis (UPEP): This test measures the levels of different proteins in the urine.
4. Immunofixation: This test is used to identify the type of antibody produced by myeloma cells and to rule out other conditions that may cause similar symptoms.
5. Bone marrow biopsy: A bone marrow biopsy involves removing a sample of tissue from the bone marrow for examination under a microscope. This can help confirm the diagnosis of multiple myeloma and determine the extent of the disease.
6. Imaging tests: Imaging tests such as X-rays, CT scans, or MRI scans may be used to assess the extent of bone damage or other complications of multiple myeloma.
7. Genetic testing: Genetic testing may be used to identify specific genetic abnormalities that are associated with multiple myeloma and to monitor the response of the disease to treatment.

It's important to note that not all patients with MGUS or smoldering myeloma will develop multiple myeloma, and some patients with multiple myeloma may not have any symptoms at all. However, if you are experiencing any of the symptoms listed above or have a family history of multiple myeloma, it's important to talk to your doctor about your risk and any tests that may be appropriate for you.

There are several subtypes of lymphoma, B-cell, including:

1. Diffuse large B-cell lymphoma (DLBCL): This is the most common type of B-cell lymphoma and typically affects older adults.
2. Follicular lymphoma: This type of lymphoma grows slowly and often does not require treatment for several years.
3. Marginal zone lymphoma: This type of lymphoma develops in the marginal zone of the spleen or other lymphoid tissues.
4. Hodgkin lymphoma: This is a type of B-cell lymphoma that is characterized by the presence of Reed-Sternberg cells, which are abnormal cells that can be identified under a microscope.

The symptoms of lymphoma, B-cell can vary depending on the subtype and the location of the tumor. Common symptoms include swollen lymph nodes, fatigue, fever, night sweats, and weight loss.

Treatment for lymphoma, B-cell usually involves chemotherapy, which is a type of cancer treatment that uses drugs to kill cancer cells. Radiation therapy may also be used in some cases. In some cases, bone marrow or stem cell transplantation may be recommended.

Prognosis for lymphoma, B-cell depends on the subtype and the stage of the disease at the time of diagnosis. In general, the prognosis is good for patients with early-stage disease, but the cancer can be more difficult to treat if it has spread to other parts of the body.

Prevention of lymphoma, B-cell is not possible, as the exact cause of the disease is not known. However, avoiding exposure to certain risk factors, such as viral infections and pesticides, may help reduce the risk of developing the disease. Early detection and treatment can also improve outcomes for patients with lymphoma, B-cell.

Lymphoma, B-cell is a type of cancer that affects the immune system and can be treated with chemotherapy and other therapies. The prognosis varies depending on the subtype and stage of the disease at diagnosis. Prevention is not possible, but early detection and treatment can improve outcomes for patients with this condition.

These cells are typically small and irregular in shape and may have different surface markers than normal cells. They can travel through the bloodstream and potentially establish new tumors in other parts of the body. The presence of NCCs in the blood can be an early sign of cancer metastasis and can provide important diagnostic and prognostic information.

NCCs can be detected using various techniques, such as the CellSearch system, which uses a combination of magnetic and fluorescent markers to capture and identify CTCs in the blood. The detection and characterization of NCCs are becoming increasingly important in the management of cancer patients, particularly those with solid tumors like breast, prostate, and colorectal cancer.

Neoplastic cells circulating can be used for various purposes, including:

1. Diagnosis: The presence of NCCs in the blood can help confirm a cancer diagnosis and identify specific types of cancer.
2. Prognosis: The number and characteristics of NCCs can provide information about the aggressiveness of the cancer and the likelihood of metastasis.
3. Monitoring treatment response: The presence or absence of NCCs in the blood during treatment can indicate whether the therapy is effective or not.
4. Detection of minimal residual disease (MRD): NCCs can be used to detect small numbers of cancer cells that may remain after treatment, which can be an indicator of potential relapse.
5. Liquid biopsy: NCCs can be analyzed for genetic mutations and other molecular markers, providing valuable information for personalized medicine.

The term "systemic" refers to the fact that the disease affects multiple organ systems, including the skin, joints, kidneys, lungs, and nervous system. LES is a complex condition, and its symptoms can vary widely depending on which organs are affected. Common symptoms include fatigue, fever, joint pain, rashes, and swelling in the extremities.

There are several subtypes of LES, including:

1. Systemic lupus erythematosus (SLE): This is the most common form of the disease, and it can affect anyone, regardless of age or gender.
2. Discoid lupus erythematosus (DLE): This subtype typically affects the skin, causing a red, scaly rash that does not go away.
3. Drug-induced lupus erythematosus: This form of the disease is caused by certain medications, and it usually resolves once the medication is stopped.
4. Neonatal lupus erythematosus: This rare condition affects newborn babies of mothers with SLE, and it can cause liver and heart problems.

There is no cure for LES, but treatment options are available to manage the symptoms and prevent flares. Treatment may include nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids, immunosuppressive medications, and antimalarial drugs. In severe cases, hospitalization may be necessary to monitor and treat the disease.

It is important for people with LES to work closely with their healthcare providers to manage their condition and prevent complications. With proper treatment and self-care, many people with LES can lead active and fulfilling lives.

Liver neoplasms, also known as liver tumors or hepatic tumors, are abnormal growths of tissue in the liver. These growths can be benign (non-cancerous) or malignant (cancerous). Malignant liver tumors can be primary, meaning they originate in the liver, or metastatic, meaning they spread to the liver from another part of the body.

There are several types of liver neoplasms, including:

1. Hepatocellular carcinoma (HCC): This is the most common type of primary liver cancer and arises from the main cells of the liver (hepatocytes). HCC is often associated with cirrhosis and can be caused by viral hepatitis or alcohol abuse.
2. Cholangiocarcinoma: This type of cancer arises from the cells lining the bile ducts within the liver (cholangiocytes). Cholangiocarcinoma is rare and often diagnosed at an advanced stage.
3. Hemangiosarcoma: This is a rare type of cancer that originates in the blood vessels of the liver. It is most commonly seen in dogs but can also occur in humans.
4. Fibromas: These are benign tumors that arise from the connective tissue of the liver (fibrocytes). Fibromas are usually small and do not spread to other parts of the body.
5. Adenomas: These are benign tumors that arise from the glandular cells of the liver (hepatocytes). Adenomas are usually small and do not spread to other parts of the body.

The symptoms of liver neoplasms vary depending on their size, location, and whether they are benign or malignant. Common symptoms include abdominal pain, fatigue, weight loss, and jaundice (yellowing of the skin and eyes). Diagnosis is typically made through a combination of imaging tests such as CT scans, MRI scans, and ultrasound, and a biopsy to confirm the presence of cancer cells.

Treatment options for liver neoplasms depend on the type, size, location, and stage of the tumor, as well as the patient's overall health. Surgery may be an option for some patients with small, localized tumors, while others may require chemotherapy or radiation therapy to shrink the tumor before surgery can be performed. In some cases, liver transplantation may be necessary.

Prognosis for liver neoplasms varies depending on the type and stage of the cancer. In general, early detection and treatment improve the prognosis, while advanced-stage disease is associated with a poorer prognosis.

Adenocarcinoma is a term used to describe a variety of different types of cancer that arise in glandular tissue, including:

1. Colorectal adenocarcinoma (cancer of the colon or rectum)
2. Breast adenocarcinoma (cancer of the breast)
3. Prostate adenocarcinoma (cancer of the prostate gland)
4. Pancreatic adenocarcinoma (cancer of the pancreas)
5. Lung adenocarcinoma (cancer of the lung)
6. Thyroid adenocarcinoma (cancer of the thyroid gland)
7. Skin adenocarcinoma (cancer of the skin)

The symptoms of adenocarcinoma depend on the location of the cancer and can include:

1. Blood in the stool or urine
2. Abdominal pain or discomfort
3. Changes in bowel habits
4. Unusual vaginal bleeding (in the case of endometrial adenocarcinoma)
5. A lump or thickening in the breast or elsewhere
6. Weight loss
7. Fatigue
8. Coughing up blood (in the case of lung adenocarcinoma)

The diagnosis of adenocarcinoma is typically made through a combination of imaging tests, such as CT scans, MRI scans, and PET scans, and a biopsy, which involves removing a sample of tissue from the affected area and examining it under a microscope for cancer cells.

Treatment options for adenocarcinoma depend on the location of the cancer and can include:

1. Surgery to remove the tumor
2. Chemotherapy, which involves using drugs to kill cancer cells
3. Radiation therapy, which involves using high-energy X-rays or other particles to kill cancer cells
4. Targeted therapy, which involves using drugs that target specific molecules on cancer cells to kill them
5. Immunotherapy, which involves using drugs that stimulate the immune system to fight cancer cells.

The prognosis for adenocarcinoma is generally good if the cancer is detected and treated early, but it can be more challenging to treat if the cancer has spread to other parts of the body.

There are several types of colonic neoplasms, including:

1. Adenomas: These are benign growths that are usually precursors to colorectal cancer.
2. Carcinomas: These are malignant tumors that arise from the epithelial lining of the colon.
3. Sarcomas: These are rare malignant tumors that arise from the connective tissue of the colon.
4. Lymphomas: These are cancers of the immune system that can affect the colon.

Colonic neoplasms can cause a variety of symptoms, including bleeding, abdominal pain, and changes in bowel habits. They are often diagnosed through a combination of medical imaging tests (such as colonoscopy or CT scan) and biopsy. Treatment for colonic neoplasms depends on the type and stage of the tumor, and may include surgery, chemotherapy, and/or radiation therapy.

Overall, colonic neoplasms are a common condition that can have serious consequences if left untreated. It is important for individuals to be aware of their risk factors and to undergo regular screening for colon cancer to help detect and treat any abnormal growths or tumors in the colon.

AML is a fast-growing and aggressive form of leukemia that can spread to other parts of the body through the bloodstream. It is most commonly seen in adults over the age of 60, but it can also occur in children.

There are several subtypes of AML, including:

1. Acute promyelocytic leukemia (APL): This is a subtype of AML that is characterized by the presence of a specific genetic abnormality called the PML-RARA fusion gene. It is usually responsive to treatment with chemotherapy and has a good prognosis.
2. Acute myeloid leukemia, not otherwise specified (NOS): This is the most common subtype of AML and does not have any specific genetic abnormalities. It can be more difficult to treat and has a poorer prognosis than other subtypes.
3. Chronic myelomonocytic leukemia (CMML): This is a subtype of AML that is characterized by the presence of too many immature white blood cells called monocytes in the blood and bone marrow. It can progress slowly over time and may require ongoing treatment.
4. Juvenile myeloid leukemia (JMML): This is a rare subtype of AML that occurs in children under the age of 18. It is characterized by the presence of too many immature white blood cells called blasts in the blood and bone marrow.

The symptoms of AML can vary depending on the subtype and the severity of the disease, but they may include:

* Fatigue
* Weakness
* Shortness of breath
* Pale skin
* Easy bruising or bleeding
* Swollen lymph nodes, liver, or spleen
* Bone pain
* Headache
* Confusion or seizures

AML is diagnosed through a combination of physical examination, medical history, and diagnostic tests such as:

1. Complete blood count (CBC): This test measures the number and types of cells in the blood, including red blood cells, white blood cells, and platelets.
2. Bone marrow biopsy: This test involves removing a small sample of bone marrow tissue from the hipbone or breastbone to examine under a microscope for signs of leukemia cells.
3. Genetic testing: This test can help identify specific genetic abnormalities that are associated with AML.
4. Immunophenotyping: This test uses antibodies to identify the surface proteins on leukemia cells, which can help diagnose the subtype of AML.
5. Cytogenetics: This test involves staining the bone marrow cells with dyes to look for specific changes in the chromosomes that are associated with AML.

Treatment for AML typically involves a combination of chemotherapy, targeted therapy, and in some cases, bone marrow transplantation. The specific treatment plan will depend on the subtype of AML, the patient's age and overall health, and other factors. Some common treatments for AML include:

1. Chemotherapy: This involves using drugs to kill cancer cells. The most commonly used chemotherapy drugs for AML are cytarabine (Ara-C) and anthracyclines such as daunorubicin (DaunoXome) and idarubicin (Idamycin).
2. Targeted therapy: This involves using drugs that specifically target the genetic abnormalities that are causing the cancer. Examples of targeted therapies used for AML include midostaurin (Rydapt) and gilteritinib (Xospata).
3. Bone marrow transplantation: This involves replacing the diseased bone marrow with healthy bone marrow from a donor. This is typically done after high-dose chemotherapy to destroy the cancer cells.
4. Supportive care: This includes treatments to manage symptoms and side effects of the disease and its treatment, such as anemia, infection, and bleeding. Examples of supportive care for AML include blood transfusions, antibiotics, and platelet transfusions.
5. Clinical trials: These are research studies that involve testing new treatments for AML. Participating in a clinical trial may give patients access to innovative therapies that are not yet widely available.

It's important to note that the treatment plan for AML is highly individualized, and the specific treatments used will depend on the patient's age, overall health, and other factors. Patients should work closely with their healthcare team to determine the best course of treatment for their specific needs.

There are several types of melanoma, including:

1. Superficial spreading melanoma: This is the most common type of melanoma, accounting for about 70% of cases. It usually appears as a flat or slightly raised discolored patch on the skin.
2. Nodular melanoma: This type of melanoma is more aggressive and accounts for about 15% of cases. It typically appears as a raised bump on the skin, often with a darker color.
3. Acral lentiginous melanoma: This type of melanoma affects the palms of the hands, soles of the feet, or nail beds and accounts for about 5% of cases.
4. Lentigo maligna melanoma: This type of melanoma usually affects the face and is more common in older adults.

The risk factors for developing melanoma include:

1. Ultraviolet (UV) radiation exposure from the sun or tanning beds
2. Fair skin, light hair, and light eyes
3. A history of sunburns
4. Weakened immune system
5. Family history of melanoma

The symptoms of melanoma can vary depending on the type and location of the cancer. Common symptoms include:

1. Changes in the size, shape, or color of a mole
2. A new mole or growth on the skin
3. A spot or sore that bleeds or crusts over
4. Itching or pain on the skin
5. Redness or swelling around a mole

If melanoma is suspected, a biopsy will be performed to confirm the diagnosis. Treatment options for melanoma depend on the stage and location of the cancer and may include surgery, chemotherapy, radiation therapy, or a combination of these. Early detection and treatment are key to successful outcomes in melanoma cases.

In conclusion, melanoma is a type of skin cancer that can be deadly if not detected early. It is important to practice sun safety, perform regular self-exams, and seek medical attention if any suspicious changes are noticed on the skin. By being aware of the risk factors, symptoms, and treatment options for melanoma, individuals can take steps to protect themselves from this potentially deadly disease.

HIV (human immunodeficiency virus) infection is a condition in which the body is infected with HIV, a type of retrovirus that attacks the body's immune system. HIV infection can lead to AIDS (acquired immunodeficiency syndrome), a condition in which the immune system is severely damaged and the body is unable to fight off infections and diseases.

There are several ways that HIV can be transmitted, including:

1. Sexual contact with an infected person
2. Sharing of needles or other drug paraphernalia with an infected person
3. Mother-to-child transmission during pregnancy, childbirth, or breastfeeding
4. Blood transfusions ( although this is rare in developed countries due to screening processes)
5. Organ transplantation (again, rare)

The symptoms of HIV infection can be mild at first and may not appear until several years after infection. These symptoms can include:

1. Fever
2. Fatigue
3. Swollen glands in the neck, armpits, and groin
4. Rash
5. Muscle aches and joint pain
6. Night sweats
7. Diarrhea
8. Weight loss

If left untreated, HIV infection can progress to AIDS, which is a life-threatening condition that can cause a wide range of symptoms, including:

1. Opportunistic infections (such as pneumocystis pneumonia)
2. Cancer (such as Kaposi's sarcoma)
3. Wasting syndrome
4. Neurological problems (such as dementia and seizures)

HIV infection is diagnosed through a combination of blood tests and physical examination. Treatment typically involves antiretroviral therapy (ART), which is a combination of medications that work together to suppress the virus and slow the progression of the disease.

Prevention methods for HIV infection include:

1. Safe sex practices, such as using condoms and dental dams
2. Avoiding sharing needles or other drug-injecting equipment
3. Avoiding mother-to-child transmission during pregnancy, childbirth, or breastfeeding
4. Post-exposure prophylaxis (PEP), which is a short-term treatment that can prevent infection after potential exposure to the virus
5. Pre-exposure prophylaxis (PrEP), which is a daily medication that can prevent infection in people who are at high risk of being exposed to the virus.

It's important to note that HIV infection is manageable with proper treatment and care, and that people living with HIV can lead long and healthy lives. However, it's important to be aware of the risks and take steps to prevent transmission.

There are several types of lung neoplasms, including:

1. Adenocarcinoma: This is the most common type of lung cancer, accounting for approximately 40% of all lung cancers. It is a malignant tumor that originates in the glands of the respiratory tract and can be found in any part of the lung.
2. Squamous cell carcinoma: This type of lung cancer accounts for approximately 25% of all lung cancers and is more common in men than women. It is a malignant tumor that originates in the squamous cells lining the airways of the lungs.
3. Small cell lung cancer (SCLC): This is a highly aggressive form of lung cancer that accounts for approximately 15% of all lung cancers. It is often found in the central parts of the lungs and can spread quickly to other parts of the body.
4. Large cell carcinoma: This is a rare type of lung cancer that accounts for only about 5% of all lung cancers. It is a malignant tumor that originates in the large cells of the respiratory tract and can be found in any part of the lung.
5. Bronchioalveolar carcinoma (BAC): This is a rare type of lung cancer that originates in the cells lining the airways and alveoli of the lungs. It is more common in women than men and tends to affect older individuals.
6. Lymphangioleiomyomatosis (LAM): This is a rare, progressive, and often fatal lung disease that primarily affects women of childbearing age. It is characterized by the growth of smooth muscle-like cells in the lungs and can lead to cysts, lung collapse, and respiratory failure.
7. Hamartoma: This is a benign tumor that originates in the tissue of the lungs and is usually found in children. It is characterized by an overgrowth of normal lung tissue and can be treated with surgery.
8. Secondary lung cancer: This type of cancer occurs when cancer cells from another part of the body spread to the lungs through the bloodstream or lymphatic system. It is more common in people who have a history of smoking or exposure to other carcinogens.
9. Metastatic cancer: This type of cancer occurs when cancer cells from another part of the body spread to the lungs through the bloodstream or lymphatic system. It is more common in people who have a history of smoking or exposure to other carcinogens.
10. Mesothelioma: This is a rare and aggressive form of cancer that originates in the lining of the lungs or abdomen. It is caused by asbestos exposure and can be treated with surgery, chemotherapy, and radiation therapy.

Lung diseases can also be classified based on their cause, such as:

1. Infectious diseases: These are caused by bacteria, viruses, or other microorganisms and can include pneumonia, tuberculosis, and bronchitis.
2. Autoimmune diseases: These are caused by an overactive immune system and can include conditions such as sarcoidosis and idiopathic pulmonary fibrosis.
3. Genetic diseases: These are caused by inherited mutations in genes that affect the lungs and can include cystic fibrosis and primary ciliary dyskinesia.
4. Environmental diseases: These are caused by exposure to harmful substances such as tobacco smoke, air pollution, and asbestos.
5. Radiological diseases: These are caused by exposure to ionizing radiation and can include conditions such as radiographic breast cancer and lung cancer.
6. Vascular diseases: These are caused by problems with the blood vessels in the lungs and can include conditions such as pulmonary embolism and pulmonary hypertension.
7. Tumors: These can be benign or malignant and can include conditions such as lung metastases and lung cancer.
8. Trauma: This can include injuries to the chest or lungs caused by accidents or other forms of trauma.
9. Congenital diseases: These are present at birth and can include conditions such as bronchopulmonary foregut malformations and congenital cystic adenomatoid malformation.

Each type of lung disease has its own set of symptoms, diagnosis, and treatment options. It is important to seek medical attention if you experience any persistent or severe respiratory symptoms, as early diagnosis and treatment can improve outcomes and quality of life.

Pre-B ALL is characterized by the abnormal growth of immature white blood cells called B lymphocytes. These cells are produced in the bone marrow and are normally present in the blood. In Pre-B ALL, the abnormal B cells accumulate in the bone marrow, blood, and other organs, crowding out normal cells and causing a variety of symptoms.

The symptoms of Pre-B ALL can vary depending on the individual patient, but may include:

* Fatigue
* Easy bruising or bleeding
* Frequent infections
* Swollen lymph nodes
* Enlarged liver or spleen
* Bone pain
* Headaches
* Confusion or seizures (in severe cases)

Pre-B ALL is most commonly diagnosed in children, but it can also occur in adults. Treatment typically involves a combination of chemotherapy and sometimes bone marrow transplantation. The prognosis for Pre-B ALL is generally good, especially in children, with a high survival rate if treated promptly and effectively. However, the cancer can be more difficult to treat in adults, and the prognosis may be less favorable.

Overall, Pre-B ALL is a rare and aggressive form of leukemia that requires prompt and specialized treatment to improve outcomes for patients.

There are several possible causes of lymphocytosis, including:

1. Infection: Lymphocytosis can be caused by a variety of infections, such as viral or bacterial infections.
2. Autoimmune disorders: Conditions such as rheumatoid arthritis, lupus, and multiple sclerosis can cause an abnormal increase in lymphocytes.
3. Cancer: Lymphocytosis can be a symptom of certain types of cancer, such as Hodgkin's disease and non-Hodgkin's lymphoma.
4. Reaction to medication: Certain medications, such as antibiotics and chemotherapy drugs, can cause lymphocytosis.
5. Genetic disorders: Certain genetic disorders, such as X-linked agammaglobulinemia, can cause lymphocytosis.

Symptoms of lymphocytosis may include swollen lymph nodes, fatigue, fever, and weight loss. Treatment depends on the underlying cause of the condition, and may involve antibiotics, chemotherapy, or other medications. In some cases, no treatment is necessary, as the condition may resolve on its own over time.

Myeloid leukemia can be classified into several subtypes based on the type of cell involved and the degree of maturity of the abnormal cells. The most common types of myeloid leukemia include:

1. Acute Myeloid Leukemia (AML): This is the most aggressive form of myeloid leukemia, characterized by a rapid progression of immature cells that do not mature or differentiate into normal cells. AML can be further divided into several subtypes based on the presence of certain genetic mutations or chromosomal abnormalities.
2. Chronic Myeloid Leukemia (CML): This is a slower-growing form of myeloid leukemia, characterized by the presence of a genetic abnormality known as the Philadelphia chromosome. CML is typically treated with targeted therapies or bone marrow transplantation.
3. Myelodysplastic Syndrome (MDS): This is a group of disorders characterized by the impaired development of immature blood cells in the bone marrow. MDS can progress to AML if left untreated.
4. Chronic Myelomonocytic Leukemia (CMML): This is a rare form of myeloid leukemia that is characterized by the accumulation of immature monocytes in the blood and bone marrow. CMML can be treated with chemotherapy or bone marrow transplantation.

The symptoms of myeloid leukemia can vary depending on the subtype and severity of the disease. Common symptoms include fatigue, weakness, fever, night sweats, and weight loss. Diagnosis is typically made through a combination of physical examination, blood tests, and bone marrow biopsy. Treatment options for myeloid leukemia can include chemotherapy, targeted therapies, bone marrow transplantation, and supportive care to manage symptoms and prevent complications. The prognosis for myeloid leukemia varies depending on the subtype of the disease and the patient's overall health. With current treatments, many patients with myeloid leukemia can achieve long-term remission or even be cured.

... uses flow cytometry Cell cycle analysis Coulter counter Cytometry Dielectrophoresis Flow Cytometry Standard Mass cytometry ... Flow cytometry cell sorters have a collection system unlike flow cytometry analyzers. The collection process starts when a ... Flow cytometry uses fluorescence as a quantitative tool; the utmost sensitivity of flow cytometry is unmatched by other ... "flow cytometry". TheFreeDictionary.com. Retrieved 2018-09-18. Shapiro HM (2003). Practical flow cytometry (4th ed.). New York: ...
... flow cytometry or PAFC is a biomedical imaging modality that utilizes photoacoustic imaging to perform flow cytometry. A flow ... "In vivo photoacoustic flow cytometry for early malaria diagnosis". Cytometry. Part A. 89 (6): 531-542. doi:10.1002/cyto.a.22854 ... Traditional flow cytometry uses cells in a laminar single file stream which then passes through a light source. Using various ... Furthermore, flow cytometry provides great ex-vivo analysis, but due to its pure optical source its penetration depth is ...
Flow cytometry Flow cytometry bioinformatics "International Society for Advancement of Cytometry". Retrieved 15 January 2015. ... Flow Cytometry Standard (FCS) is a data file standard for the reading and writing of data from flow cytometry experiments. The ... Cytometry Part A. 77 (1): 97-100. doi:10.1002/cyto.a.20825. PMC 2892967. PMID 19937951. "Data File Standard for Flow Cytometry ... "Introduction to flow cytometry data file standard". Cytometry. 11 (3): 321-322. doi:10.1002/cyto.990110302. PMID 2340768. Dean ...
Flow Cytometry Standard (FCS) was developed in 1984 to allow recording and sharing of flow cytometry data. Since then, FCS ... Recently, a GenePattern Flow Cytometry Suite has been developed in order to bring advanced flow cytometry data analysis tools ... Flow cytometry Bioinformatics Proteomics Flow Cytometry Standard This article was adapted from the following source under a CC ... Flow cytometry bioinformatics is the application of bioinformatics to flow cytometry data, which involves storing, retrieving, ...
The advantage of tissue cytometry against flow cytometry is that tissue cytometry does not require the cells to be suspended in ... "Virtual flow cytometry" of immunostained lymphocytes on microscopic tissue slides:iHCFlow™ tissue cytometry". Cytometry Part B ... "Virtual flow cytometry" of immunostained lymphocytes on microscopic tissue slides: iHCFlow tissue cytometry". Cytometry. Part B ... Hence, tissue cytometry complements the use of flow cytometry and fluorescence microscope in basic research, clinical practice ...
"Partec Flow Museum". Partec GmbH. Retrieved 2013-08-25. Wikimedia Commons has media related to Cytometry. Look up cytometry in ... "The History of Flow Cytometry". Beckman-Coulter Inc. Retrieved 2013-03-31. Rusk, N. (2009). "The fluorescence microscope". ... At that point pulse cytophotometry had evolved into the modern form of flow cytometry, pioneered by Van Dilla ten years earlier ... Flow cytometers operate by aligning single cells using flow techniques. The cells are characterized optically or by the use of ...
Flow cytometry. Methods in Cell Biology. Vol. 42. San Diego: Academic Press. pp. 263-74. ISBN 0-12-203052-4. Chang CC, Kass L ( ...
Flow Cytometry. Supports automated quality control, centralized data management and web-based data sharing. Integrates with ... LabKey Server provides a secure data repository for all types of biomedical data, including mass spectrometry, flow cytometry, ... Cytometry Part A. 73A (9): 847-56. doi:10.1002/cyto.a.20600. PMC 2591089. PMID 18615598. "The Best of Both Worlds: Integrating ... "Development of an automated analysis system for data from flow cytometric intracellular cytokine staining assays from clinical ...
Practical Flow Cytometry. John Wiley & Sons. pp. 480-. ISBN 978-0-471-43403-0. " Hematologic Diagnostics Go with the Flow". ... 214-. ISBN 978-0-323-23906-6. John L. Carey, MD; J. Philip McCoy, PhD; David F. Keren, MD (2007). Flow Cytometry in Clinical ... Flow Cytometry, Hemostasis and Thrombosis, Molecular Diagnostics, Hematology Informatics, Hemoglobinopathies, Hemolytic Anemias ... In 2001 the organization published the first flow based reference method for platelet counting. In 2005 it published a document ...
"Flow Cytometry Basic". Archived from the original on September 20, 2013. Retrieved 2012-11-17.{{cite web}}: CS1 maint: unfit ... "flow karyotyping" of cells. In flow karotyping, isolated metaphase chromosomes are stained and measured in a flow ... Another use of microfluorometry is flow cytometry which uses the emission of fluorochrome molecules and usually a laser as a ... For example, E. coli bacteriophages lambda and T4 were able to be separated by flow cytometry which allowed for genomic ...
Founding Director of the NCI-funded National Urinary Bladder Flow Cytometry Network which established clinical flow cytometry ... "Flow cytometric evaluation of bladder cancer: recommendations of the NCI flow cytometry network for bladder cancer". World ... Coon JS, Weinstein RS, (ed): Diagnostic Flow Cytometry. Williams and Wilkens, Co., Baltimore, pp. 1-199, 1991 Bacus, JW; Wiley ... urinary bladder flow cytometry; image analysis; holographic microscopy; robotic telepathology; quantitative ...
McKinnon, Katherine M. (21 February 2018). "Flow Cytometry: An Overview". Current Protocols in Immunology. 120: 5.1.1-5.1.11. ... Cytometry: The cells are placed in the machine which uses a beam to scatter the cells based on different aspects and can ...
... techniques and technologies include flow cytometry studies and immunohistochemistry. In the United States, hematopathology is a ... "Flow Cytometry and Hematopathology". University of Rochester Medical Center. Retrieved 4 October 2020. https://www.sh-eahp.org ...
Givan, Alice (April 5, 2004). Flow Cytometry First Principles. p. 6. ISBN 9780471459118. "Applied Energy Program". Los Alamos ... The laboratory contributed to the early development of the flow cytometry technology. In the 1950s, researcher Mack Fulwyler ... which produces a laminar flow of liquid that breaks up into separate, fine drops. In 1969, Los Alamos reported the first ...
Larry A. Sklar (2 September 2005). Flow Cytometry for Biotechnology. Oxford University Press, USA. pp. 218-219. ISBN 978-0-19- ...
"Flow Cytometry Core Facility". Oklahoma Medical Research Foundation. Archived from the original on February 7, 2005. Retrieved ... Flow Cytometry, with three instruments: the FACScan and FACSCalibur cytometers, capable of three and four color fluorescence ...
The use of flow cytometry in aquatic science advanced rapidly and in 1989 Clarice Yentsch and Paul Horan co-edited a special ... By 1984, the study of phytoplankton was advancing due to the ability of flow cytometry to characterize phytoplankton on small ... As a scientist, she pioneered the use of flow cytometry to investigate marine phytoplankton and co-founded Bigelow Laboratory ... Yentsch, C. M.; Cucci, L.; Phinney, D. A. (1984), "Flow Cytometry and Cell Sorting : Problems and Promises for Biological Ocean ...
... is a software package for analyzing flow cytometry data. Files produced by modern flow cytometers are written in the ... "Proposed new data file standard for flow cytometry, version FCS 3.0". Cytometry. 28 (2): 118-122. doi:10.1002/(SICI)1097-0320( ... FlowJo will import and analyze cytometry data regardless of which flow cytometer is used to collect the data. In FlowJo, ... "BD Biosciences , Flow Cytometry Instruments and Reagents". Official website (Articles with short description, Short description ...
Ultra-High Performance Flow Cytometry. Financial support of Atlantic Philanthropies, the Government of Queensland and The ...
Early flow cytometry devices shot beams of light at cells in specific wavelengths and measured the resulting absorbance, ... Flow cytometry Cell counting Gulati, Gene; Song, Jinming; Dulau Florea, Alina; Gong, Jerald (2013). "Purpose and Criteria for ... In these cases, other techniques such as immunophenotyping by flow cytometry or special staining can be used to definitively ... However, these features are not diagnostic, and flow cytometry or special staining is generally used to confirm the lineage. ...
"Clinical Flow Cytometry Case #54". Archived from the original on 2007-10-09. Retrieved 2007-09-07. Cannon T, Mobarek D, Wegge J ... Definitively diagnosing HCL is also possible through flow cytometry on blood or bone marrow. The hairy cells are larger than ... 9 of 19 in continuous CR for a median of 16 years were free of HCL MRD by flow cytometry and IHC. This suggests that the ... such as the potential for decreased blood flow to the placenta. IFN-alpha works by sensitizing the hairy cells to the killing ...
"Flow Cytometry Intracellular Staining Guide". eBioscience, Inc. Retrieved 2011-09-25. "Croton Oil". OilHealthBenefits. ...
Early flow cytometry devices shot beams of light at cells in specific wavelengths and measured the resulting absorbance, ... In its broadest sense, the term flow cytometry refers to any measurement of the properties of individual cells in a fluid ... ISBN 978-0-323-41315-2. Melamed, M (2001). "Chapter 1 a brief history of flow cytometry and sorting". Methods in Cell Biology. ... Kottke-Marchant, K; Davis, B (2012). p. 8. Shapiro, HM (2003). p. 1. Bakke, AC (2001). "The principles of flow cytometry". ...
Flow cytometry in veterinary oncology. Reggeti F, Bienzle, D. Vet Pathol. 2011 Jan;48(1):223-35 Utility of polymerase chain ... Flow cytometry detects antibodies linked to tumour cell surface antigens in fluid samples or cell suspensions. Polymerase chain ...
"Flow Cytometry Intracellular Staining Guide". eBioscience, Inc. Retrieved 2011-09-25. Cohen, Adina; Brodie, Chaya; Sarid, Ronit ...
... www.abcam.com/protocols/fluorescence-compensation-in-flow-cytometry (1977 introductions, 1977 in science, Flow cytometry). ... "Spectral compensation for flow cytometry: visualization artifacts, limitations, and caveats". Cytometry. 45 (3): 194-205. doi: ... "Spectral compensation for flow cytometry: visualization artifacts, limitations, and caveats". Cytometry. 45 (3): 194-205. doi: ... The compensation can be done through different flow cytometry software such as Flowjo, Flowlogic, Kaluza etc. The first data ...
"New cell cycle compartments identified by multiparameter flow cytometry". Cytometry. 1 (2): 98-108. doi:10.1002/cyto.990010203 ... Cell cycle analysis by DNA content measurement is a method that most frequently employs flow cytometry to distinguish cells in ... Gray JW, Dolbeare F, Pallavicini MG, Beisker W, Waldman F (1986). "Cell cycle analysis using flow cytometry". Int J Radiat Biol ... Riccardi C, Nicoletti I (9 November 2006). "Analysis of apoptosis by propidium iodide staining and flow cytometry". Nature ...
Meyer M, Scheper T, Walter JG (August 2013). "Aptamers: versatile probes for flow cytometry". Applied Microbiology and ... and flow cytometry. As therapeutics, they can function as agonists or antagonists of their ligand. While antibodies are a ... Chen A, Yang S (September 2015). "Replacing antibodies with aptamers in lateral flow immunoassay". Biosensors & Bioelectronics ...
Flow Cytometry and Sorting. Melamed MR, Mendelsohn M & Lindmo T (eds), Alan R. Liss, Inc., New York. pp. 291-314. ISNBM 0-471- ...
Young NA, Al-Saleem T (January 2008). "Lymph nodes: Cytomorphology and flow cytometry". Comprehensive Cytopathology. WB ...
... flow cytometry, cytogenetics, or electron microscopy. Two major types of sections in gross processing are perpendicular and en ...
... or flow cytometry. In prokaryotes, pulsed field gel electrophoresis and complete genome sequencing are the predominant methods ... Cytometry Part A. 51 (2): 127-128. doi:10.1002/cyto.a.10013. PMID 12541287. Hinegardner R (1976). "Evolution of genome size". ...
The fluorochrome-based TUNEL assay applicable for flow cytometry, combining the detection of DNA strand breaks with respect to ... "Analysis of apoptosis by cytometry using TUNEL assay". Methods. 44 (3): 250-254. doi:10.1016/j.ymeth.2007.11.008. PMC 2295206. ...
... conjugated with phycoerythrin to label IgG or IgM-coated RBCs and enhance the detection by flow cytometry The flow cytometry is ... Flow cytometry is the method of choice. By examining markers on the surface of blood cells, the method can determine whether ... Due to their small size, PFCs are able to permeate circulation where erythrocytes may not flow. In tiny capillaries, PFCs ...
Flow cytometry may be used to examine markers on the cell surface or inside the lymphocytes. Additional tests such as computed ...
Cells treated with nocodazole arrest with a G2- or M-phase DNA content when analyzed by flow cytometry. Microscopy of ...
Flow-FISH uses flow cytometry to perform FISH automatically using per-cell fluorescence measurements. Microfluidics-assisted ... FISH (MA-FISH) uses a microfluidic flow to increase DNA hybridization efficiency, decreasing expensive FISH probe consumption ...
Earnshaw, JC (1999). "Signal amplification in flow cytometry using biotin tyramine". Cytometry. 35 (2): 176-9. doi:10.1002/( ... 2015 Signal amplification in flow cytometry using biotin tyramine, Cytometry, 1999 Aquaporin-1 is expressed by vascular smooth ...
Koch, F.; Kang, Y.; Villareal, T. A.; Anderson, D. M.; Gobler, C. J. (2014-08-15). "A Novel Immunofluorescence Flow Cytometry ...
The institute has in-house facilities for bioinformatics, flow cytometry, microscopy, genomics, nuclear magnetic resonance (NMR ...
While at Stanford she performed her doctoral research with Leonard Herzenberg, Ph.D., studying the use of flow cytometry to ...
Since it opposes the normal flow of ions during an action potential, energy in the form of ATP (adenosine triphosphate) is used ... Cytometry Part A. 73A (7): 673-678. doi:10.1002/cyto.a.20580. PMC 3180874. PMID 18496849. Francis, A. A.; Mehta, B.; Zenisek, D ...
The diagnosis of this condition can be done via the following: Flow cytometry Bleeding time analysis Platelet aggregation ...
"Enhanced Analysis of Extracellular Vesicles with Imaging Flow Cytometry". Archived from the original on 2015-12-08. Retrieved ...
The dye can also be used in flow cytometry experiments for the detection of Acanthamoeba, Naegleria and other amoebal cysts. In ...
The blood DCs are typically identified and enumerated in flow cytometry. Three types of DCs have been defined in human blood: ...
Hult, Annika K; Frame, Tim; Chesla, Scott; Henry, Stephen; Olsson, Martin L (2012). "Flow cytometry evaluation of red blood ... Several FSL Kode constructs have been used to label viruses to assist in their flow-cytometric visualisation and to track them ...
He and his collaborators did extensive work on the application of flow cytometry to analyze endocytic membrane traffic ... "Endosome pH measured in single cells by dual fluorescence flow cytometry: rapid acidification of insulin to pH 6". The Journal ... A flow cytofluorometric analysis". Journal of Biological Chemistry. 257 (4): 1695-1701. doi:10.1016/S0021-9258(19)68093-2. ISSN ... He served as President of the International Society for the Advancement of Cytometry, was named as the first External Senior ...
"A selective procedure for DNA extraction from apoptotic cells applicable for gel electrophoresis and flow cytometry". Anal ...
... flow cytometry). Additional biologically active molecules (such as antibodies) may also be attached to fluorescein, allowing ... Fluorescein is used as a rather conservative flow tracer in hydrological tracer tests to help in understanding of water flow of ... Fluorescein has often been used to track water movement in groundwater to study water flow and observe areas of contamination ... Duran-Nebreda S, Bassel G (July 2017). "Fluorescein Transport Assay to Assess Bulk Flow of Molecules Through the Hypocotyl in ...
An optimized method for routine HLA-B27 screening using flow cytometry. Cytometry, 1994; 18:21-29. Strauss K, F. Hulstaert, V. ... A comparative study of DNA content as measured by flow cytometry and image analysis in 1864 specimens. Analytical Cellular ... Cytometry. 1999;38:231-7. Immunology Strauss K, Gonzalez H. El syndrome de anticardiolipina. Acta Med Col 1988;13:46-49. ... Cytometry, 1996; 26:52-59. Endocrinology Strauss K. Endocrine complications of the Acquired Immunodeficiency Syndrome. Archives ...
Flow cytometry Dynabeads S. Miltenyi, W. Muller, W. Weichel, and A. Radbruch, "High Gradient Magnetic Cell Separation With MACS ... flow through. With this method, the cells can be separated positively or negatively with respect to the particular antigen(s).[ ... Cytometry, vol. 11, no. 2, pp. 231-238, 1990. (All articles with unsourced statements, Articles with unsourced statements from ...
May 2021). "Cell engineering method using fluorogenic oligonucleotide signaling probes and flow cytometry". Biotechnology ... ATP-driven conformational changes in CFTR open and close a gate to allow the transmembrane flow of anions down their ...
One study which did address this topic used flow cytometry or elutriation of synchronized cells treated with actinomycin D1, ...
... the role of commonly used flow cytometry cell markers and the application of a multiparameter scoring system". Am. J. Clin. ... utility of detecting CD10+ T cells by flow cytometry". Hum. Pathol. 36 (7): 784-91. doi:10.1016/j.humpath.2005.05.008. PMID ... "CD10 and ICOS expression by multiparametric flow cytometry in angioimmunoblastic T-cell lymphoma". Mod. Pathol. 24 (7): 993- ...
She is the Director of California Institute of Technology's Flow Cytometry and Cell Sorting Shared Resource Laboratory and the ... Diamond is the applications specialist and Director of the flow cytometry and cell sorting shared resource laboratory at the ...
... flow cytometry, and next-generation sequencing) and create analytic workflows without any programming through a point and click ... flow cytometry, and short-read sequencing. A programmatic interface that makes analysis modules available to computational ...
Using flow cytometry, results have determined that the relative abundance of picophytoplankton (< 2 μ {\displaystyle \mu } m), ... since they occur where a sudden change in water depth causes a constriction of the current flow. They can be expressed as a ...
"Identification of small-molecule inhibitors of RGS4 using a high-throughput flow cytometry protein interaction assay". ...
... the University of Manitoba Flow Cytometry Core Facility is a multi-user facility that provides a wide range of flow cytometry- ... you will quickly be able to perform flow cytometry techniques on your own using our flow cytometry instruments and specialized ... Christine Zhang gave a brief overview of our flow cytometry core facility at a live session hosted by Canadian Cytometry and ... Our state-of-the-art multi-laser multi-application flow cytometry analyzers and sorter gives researchers like you the ...
Flow Cytometry. Mouse monoclonal FAS monoclonal antibody. 100% Bioguaranteed ...
What is Full Spectrum Profiling (FSPTM) Flow Cytometry?. Conventional flow cytometers have difficulty distinguishing ... Flow cytometry is a widely used technique in drug discovery, genomics, immunoprofiling for analyzing the expression of surface ... A prodigy thats taking flow cytometry to the next level of performance and flexibility ... A cell suspension is passed through a flow chamber single file, through one to several lasers to detect the scattered light and ...
New users. This lab is accessible only for authorized persons. New users need to contact the responsible person for the compulsory introductory course. You can request new user training through iLab "Request Services". Authorization will be granted after that. New users are encouraged to join GRP_FACS_users to receive announcements and news and to connect to other users. To join the group, please contact [email protected]. User fee. The user fee is 300 SEK/h for the internal users and 350 SEK/h for external users. Maximal booking time is 4 h. For longer experiments, booking can be done between 6 p.m. - 9 a.m. and during the weekends (max 4 h of usage will be charged). The instruments can ONLY be used through booking in iLab, (schedule equipment). More information on how to register in iLab is found at: https://ki.se/en/onkpat/ilab-booking-and-billing-system. For work with clinical/patient material. The work with patient material is allowed in the facility only if a risk assessment has been ...
... offers quantitative cell studies, extracellular vesicles, and single-cell gene transcriptome analyses. ... Life Technologies Flow Cytometry Resource Center offers free basic flow cytometry tutorials and educational webinar series, ... While this is very useful and has been the standard in flow cytometry over the past decades, spectral flow cytometry provides ... Sony ID7000 spectral flow cytometer with advanced high-parameter flow cytometry capabilities. The instrument has six lasers and ...
Acosta M, Pereira J, Arroz M: Screening of carcinoma metastasis by flow cytometry: a study of 238 cases. Cytometry B Clin Cytom ... Wood BL: Principles of minimal residual disease detection for hematopoietic neoplasms by flow cytometry. Cytometry B Clin Cytom ... Flow cytometry (FC) is well established as a useful diagnostic modality for the assessment of hematopoietic neoplasms [1]. ... Darzynkiewicz Z, Halicka HD, Zhao H: Analysis of cellular DNA content by flow and laser scanning cytometry. Adv Exp Med Biol ...
Our flow cytometry protocols cover topics like sample prep of mouse and rat leucocytes, indirect staining of mononuclear cells ... Intracellular Flow and Phosflow FAQ. Find answers to most commonly asked questions on intracellular flow cytometry and use of ... The selection of an appropriate isotype control is essential for every flow cytometry experiment. Find procedures for ... Procedure for Manual Setting of Compensation for Multi-Color Flow Cytometric Analysis. Find detailed information on electronic ...
2023 Slovakia Hematology and Flow Cytometry Analyzers and Reagents Market--2022 Supplier Shares, 2022-2027 Test Volume and ... Vietnam Hematology and Flow Cytometry Analyzers and Reagents. 2023 Vietnam Hematology and Flow Cytometry Analyzers and Reagents ... Total Hematology and Flow Cytometry. Specimen Volume Forecast. All Market Segments. Total Hematology and Flow Cytometry. Test ... Venezuela Hematology and Flow Cytometry Analyzers and Reagents. 2023 Venezuela Hematology and Flow Cytometry Analyzers and ...
Science LLC are designed for flow cytometry applications. Coverin ... and in spectral flow cytometry, the fluorescence is collected ... The Semrock® line of Nanopede™ optical filters from IDEX Health & Science LLC are designed for flow cytometry applications. ... Flow cytometry interrogates cells through scattered light measurements and fluorescent markers, ... the filters are designed to match the rapidly developing flow cytometry market. Custom optical filters can meet specific ...
View our 1 Dendritic Cell Flow Cytometry Kits Flow Cytometry Kits for your research. ... Human Myeloid Dendritic Cell Multi-Color Flow Kit Contains conjugated antibodies to CD16-PerCP (Clone 245536), BDCA3/CD141-PE ( ...
After fixation and DNA denaturation, a conjugated anti-BrdU is added to detect the incroporated BrdU by flow cytometry (see ... Analysis of cell cycle can be performed by flow cytometry, using a fluorescence dye that will stain DNA. The fluorescence ... DNA Cytometry Consensus Conference: Cytometry Part A Vol 14 (5), 1993 (hardcopy available at the FCCS facility) ... How to Set Up a Cell Cycle Experiment (Flow Cytometry)?. click here ...
Home » Flow cytometry. Articles tagged with: Flow cytometry. Bionics». Novel approach can sort cells up to 38 times faster. ... Tags: algorithm, computer vision, Flow cytometry, high speed camera, medicine, university of california san diego ...
... Nov 7, ... The promise of gene therapy in gastrointestinal and liver diseasesThe prognostic value of multiparameter flow cytometry minimal ...
Tag: exosome flow cytometry. Cyclic Nucleotide (cAMP and cGMP) Assays and Capture ELISA for Quantitative Analysis of Plasmodium ...
Flow Cytometry and T-Cell Response Monitoring after Smallpox Vaccination. Emerging Infectious Diseases. 2003;9(11):1468-1470. ... Flow Cytometry and T-Cell Response Monitoring after Smallpox Vaccination On This Page ... Flow Cytometry and T-Cell Response Monitoring after Smallpox Vaccination. Volume 9, Number 11-November 2003 ... By monitoring T-cell responses by flow cytometry, we observed a recall response after recent vaccination against smallpox. When ...
Iridian Spectral Technologies Ltd designs and manufactures a range of dichroic edge pass filters for flow cytometry and ... FLD 495 DSP Iridian Short Pass Filter for Flow Cytometry & Spectroscopy. Dichroic Short Pass Filter for Flow Cytometry ... FLD 548 DSP Iridian Short Pass Filter for Flow Cytometry & Spectroscopy. Dichroic Short Pass Filter for Flow Cytometry ... FLD 553 DSP Iridian Short Pass Filter for Flow Cytometry & Spectroscopy. Dichroic Short Pass Filter for Flow Cytometry ...
Traditional methods for flow cytometry (FCM) data processing rely on subjective manual gating. Recently, several groups have ... The Flow Cytometry: Critical Assessment of Population Identification Methods (FlowCAP) challenges were established to compare ... Critical assessment of automated flow cytometry data analysis techniques. Aghaeepour N, Finak G, FlowCAP Consortium, DREAM ...
Introduction Flow cytometry(FC) plays an important role in the diagnosis of hematologic diseases and the study of cell ... Spectral multicolor flow cytometry(SMFC) has shown an advantage over traditional FC that more fluorescent markers could be ... 2465 One Tube 24 Color Full Spectral Flow Cytometry and Multi-Dimensional Software to Study the Maturation Pattern and Antigen ...
August 21, 2021 - Dominique comment on Isolation and immunophenotyping by flow cytometry of canine peripheral blood and ... Isolation and immunophenotyping by flow cytometry of canine peripheral blood and intraepithelial and lamina propria duodenal T ... Circulation cytometry (FC) is likely one of the mostly used methods to characterize intestinal lymphocytes in human […] ...
C. elegans (roundworms) - Flow Cytometry Publications - C. elegans (roundworm). • D. melanogaster (fruit fly) - Flow Cytometry ... Flow cytometry for small model organisms. Join Union Biometrica, Inc. online at the Society for Developmental Biology 80th ... Large Particle Flow Cytometry for Gentle Sorting -- Union Biometrica offers tools for high throughput research of bead based ... Home › Media › Press Releases › Flow cytometry for small model organisms. Join Union Biometrica, Inc. online at the Society for ...
Explore the research areas in which this equipment has been used. These labels are generated based on the related outputs. Together they form a unique fingerprint ...
By passing cells through a laser beam, flow cytometry can provide information on various characteristics of the cells, such as ... Flow cytometry is a widely used method for analyzing and quantifying cells. ... Flow cytometry is a widely used method for analyzing and quantifying cells. By passing cells through a laser beam, flow ... Home › Product References › We asked DALL-E to generate images of cells analyzed by Flow Cytometry ...
a Flow cytometry measurement of T-BET and EOMES in gated NK cells from WT, Tbx21+/−, Tbx21−/−, Ncr1Cre/+ (Eomes+/+), Ncr1Cre/+ ... a Flow cytometry analysis of NK cell percentage in BM or spleen lymphocytes of the indicated mice. Each dot corresponds to a ... d Flow cytometry analysis of STAT4 phosphorylation in WT vs T-BET deficient NK cells of the indicated subset in response to ... d Flow cytometry measurement of CD122 expression in NK cells. Bar graphs show the MFI ± SD (one symbol per individual mouse ...
... (FFC) is used to analyse physiological and chemical properties of cells. It can also be used to ... Fluorescence flow cytometry (FFC) Fluorescence flow cytometry (FFC) is used to analyse physiological and chemical properties of ... In flow cytometry, we examine cells and particles while they are flowing through a very narrow flow cell. ... For blood cell counts we use fluorescence flow cytometry, e.g. for the WBC and differential, for NRBC counting and reticulocyte ...
The Flow cytometry core facility at EMBL (Heidelberg) is dedicated to support research projects requiring FACS analysis and ... As data is acquired, a file of data, often referred as flow cytometry standard (fcs) data file is created. The computer program ... Interested to know a bit more about Flow Cytometry and the falling drops on the sorter screen? ... We design, run, and analyse the results of your flow cytometry experiment together with you. ...
Flow Cytometry , Analyzers. In this section you will find information related with all the Flow Cytometry Analyzers and ... Parnassus Flow Cytometry Core. 513 Parnassus Ave. - Medical Sciences Building, Room S854-S864. San Francisco, CA 94143 ... It can be run at 3 different sample flow rates and is capable of analysis rates of up to 20,000 events per second. It is ... It can be run at 3 different sample flow rates with a fine-tune adjustor and is capable of analysis rates of up to 40,000 ...
Flow Cytometry Core Facility. 7703 Floyd Curl Drive. Rm 5.044V. Joe R. & Teresa Long School of Medicine. San Antonio, TX 78229- ...
The Flow Cytometry department performs a wide variety of testing which includes immunophenotyping of cells used for the ... Medicilon Flow Sorting Platform. Based on the technical basis of flow cytometry, the Medicilon flow sorting platform is widely ... Medicilon flow cytometry team has extensive experience in experimental operation, flow sorting method development and data ... The Flow Cytometry department performs a wide variety of testing which includes immunophenotyping of cells used for the ...
Shop our full catalog of Flow Cytometry Instruments on the Beckman Coulter Life Sciences online store. ... Shop All Flow Cytometry Instruments Use the filters below to refine the results by product series, instrument model, and more. ...
... text defines different CPT codes for the professional interpretation of flow cytometry studies vs. the technical component. ... Medicare in many states has what is called an LCD (Local Coverage Determination) Policy for Flow Cytometry Studies. An LCD is a ... Only one code should be reported for all flow cytometry performed on a specimen. Since Medicare will not pay for duplicate ... 88184: Flow Cytometry, cell surface, cytoplasmic, or nuclear marker, technical component only; first marker. • 88185: Each ...
  • By using fluorescently-labeled antibodies, a flow cytometer is capable of detecting and differentiating between multiple proteins of interest. (dksh.com)
  • All investigators are encouraged to meet with the Scientific Director of the Flow Cytometry Core to discuss their experiment prior to ordering antibodies and other reagents. (ccf.org)
  • Cytek Aurora spectral flow cytometer equipped with five lasers (355nm, 405nm, 488nm, 561nm and 640 nm excitation wavelengths), three scattering channels, can detect up to 64 fluorescence channels. (ccf.org)
  • Sony ID7000 spectral flow cytometer with advanced high-parameter flow cytometry capabilities. (ccf.org)
  • Find detailed information on electronic compensation for fluorochrome spectral overlap during flow cytometric analysis of multi-color immunofluorescence staining. (bdbiosciences.com)
  • Flow cytometry interrogates cells through scattered light measurements and fluorescent markers, and in spectral flow cytometry, the fluorescence is collected across the entire spectrum using discrete, spectrally adjacent optical filters. (photonics.com)
  • Spectral multicolor flow cytometry(SMFC) has shown an advantage over traditional FC that more fluorescent markers could be detected simultaneously, more antigen combinations could be made, and the expression of cells cou ld be scrutinized. (confex.com)
  • Cytek's Spectral Flow Cytometer equipped with five excitation sources and 64 fluorescence emission detection channels, which provides measurement of the full visible spectrum for each fluorochrome. (ucsf.edu)
  • A cell suspension is passed through a flow chamber single file, through one to several lasers to detect the scattered light and fluorescence of single cells. (dksh.com)
  • By passing cells through a laser beam, flow cytometry can provide information on various characteristics of the cells, such as size, shape, and fluorescence. (innov-research.com)
  • Fluorescence flow cytometry (FFC) is used to analyse physiological and chemical properties of cells. (sysmex.no)
  • The principle of fluorescence flow cytometry is used in different analysers for haematology and urinalysis. (sysmex.no)
  • For blood cell counts we use fluorescence flow cytometry, e.g. for the WBC and differential, for NRBC counting and reticulocyte measurement. (sysmex.no)
  • Title : Technological features of blast identification in the cerebrospinal fluid: a systematic review of flow cytometry and laboratory hematology methods Personal Author(s) : Frater, John L.;Shirai, Cara Lunn;Brestoff, Jonathan R. (cdc.gov)
  • Flow cytometric analysis for epithelial antigens can be combined with DNA ploidy analysis or assessment of the nucleus-to-cytoplasm ratio. (karger.com)
  • However, most nonhematopoietic neoplasms and tissues are amenable to flow cytometric analysis. (karger.com)
  • Epithelial neoplasms are not commonly thought to be conducive to flow cytometric analysis, given their cohesiveness compared to hematopoietic neoplasms. (karger.com)
  • Serous cavity effusion samples, in particular, are very amenable to flow cytometric analysis since the cells are already dispersed in a cell suspension which includes single cells. (karger.com)
  • We also offer a detailed procedure for setting compensation for multi-color flow cytometric analysis. (bdbiosciences.com)
  • Escapees are aggregates of cells (including positively labeled cells) that are excluded from the flow cytometric analysis gate, thus altering the results of the analysis. (bdbiosciences.com)
  • Flow cytometric analysis of T-cell responses to smallpox antigens after recent smallpox vaccination and in long-term vaccinated or not vaccinated persons. (cdc.gov)
  • 1998). Using flow cytometric analysis, Katona et al. (cdc.gov)
  • All patients can evolve into trisomy 8+ MDS [12], cells, since acquiring adequate samples diagnosed with MDS have a reduced in which 8+ appears to confer a favour- for flow cytometric analysis renders the life expectancy compared with age- able prognosis [13]. (who.int)
  • Conventional flow cytometers have difficulty distinguishing fluorochromes with highly overlapping peak emissions, severely limiting fluorochrome choice and multiplexing capability, leading to misinterpretation of the result. (dksh.com)
  • 2. Flow Cytometers a. (aarkstore.com)
  • As with our original COPAS platform of flow cytometers it provides automated high throughput analysis and sorting of viable multicellular organisms, cell clusters, bead-based libraries and other samples that are too large or too fragile for traditional flow cytometers. (unionbio.com)
  • We provide Large Particle Flow Cytometers (COPAS and BioSorter) for objects that are too large / too fragile for traditional cytometers and offer an alternative to manual sorting. (unionbio.com)
  • Our COPAS VISION large particle flow cytometer, adds brightfield imaging to our large particle sorting capabilities. (unionbio.com)
  • The BioSorter® flow cytometer is designed to provide the flexibility for working with samples ranging in sizes from 10 to 1500 microns. (unionbio.com)
  • The BD FACSCalibur is a flow cytometer analyzer equipped with 2 lasers, generating data of up to 6 parameters for each event passing through the interrogation point. (ucsf.edu)
  • The BD LSRII, Fortessa, and X-20 class of instruments are flow cytometer analyzers equipped with 4 or more lasers, generating data of up to 20 parameters for each event passing through the interrogation point. (ucsf.edu)
  • The BD LSRFortessa X-50 (also known as FACSymphony) is the flow cytometer analyzer equipped with 4, generating data of up to 30 parameters for each event passing through the interrogation point. (ucsf.edu)
  • The selection of an appropriate isotype control is essential for every flow cytometry experiment. (bdbiosciences.com)
  • Find answers to most commonly asked questions on intracellular flow cytometry and use of BD Phosflow™ Reagents. (bdbiosciences.com)
  • Flow cytometry is a widely used technique in drug discovery, genomics, immunoprofiling for analyzing the expression of surface protein intracellularand intracellular molecules, characterizing and sorting cell populations, assessing the purity of isolated subpopulations, and cell-based assays such as proliferation, cyto toxicity and cell deathcounting. (dksh.com)
  • A meeting with both Flow Cytometry and Genomics Core directors is mandatory for pilot 10x experiments. (ccf.org)
  • Panels of flow cytometric markers are useful for the assessment of pediatric nonhematopoietic neoplasms, including neuroblastomas, primitive neuroectodermal tumors, Wilms' tumor, rhabdomyosarcomas, germ cell tumors, and hemangiopericytomas, as well as small-round-blue-cell tumors in adults, including small-cell carcinomas. (karger.com)
  • Cells were tested for the expression of surface markers and for ALDH1 enzyme activity, by flow cytometry. (bvsalud.org)
  • Flow cytometry (FC) is well established as a useful diagnostic modality for the assessment of hematopoietic neoplasms [ 1 ]. (karger.com)
  • Using a rapid flow cytometric test, we previously showed that monitoring interferon (IFN)-γ production by antigen-pulsed T cells provides a quantitative and functional assessment of HIV- or cytomegalovirus (CMV)-specific CD8(+) and CD4(+) T cells ( 4 - 6 ). (cdc.gov)
  • Critical assessment of automated flow cytometry data analysis techniques. (jcvi.org)
  • The Flow Cytometry: Critical Assessment of Population Identification Methods (FlowCAP) challenges were established to compare the performance of these methods on two tasks: (i) mammalian cell population identification, to determine whether automated algorithms can reproduce expert manual gating and (ii) sample classification, to determine whether analysis pipelines can identify characteristics that correlate with external variables (such as clinical outcome). (jcvi.org)
  • Reply to: Impact on intraoperative flow cytometry in management of colorectal liver metastases: Simultaneous assessment of tumor biology and resection margin status. (bvsalud.org)
  • Our state-of-the-art multi-laser multi-application flow cytometry analyzers and sorter gives researchers like you the capability to design and perform multicolor assays that best suits your needs with high efficiency and high-quality. (google.com)
  • yH2AX was quantified in peripheral lymphocytes using flow cytometry and 8-hydroxy-2-deoxyguanosine (8-OHdG) was assessed in urine using ELISA. (cdc.gov)
  • Large Particle Flow Cytometry for Gentle Sorting -- Union Biometrica offers tools for high throughput research of bead based assays, stem cells and cell clusters (iPS cells and embryoid bodies as well as other types of large cells / cell clusters) plus model organisms (early stages of zebrafish, C.elegans, Drosophila embryos and larvae, sea urchin embryos, Xenopus eggs and embryos, Daphnia, various marine larvae and zooplankton). (unionbio.com)
  • Flow cytometry is a widely used method for analyzing and quantifying cells. (innov-research.com)
  • Located at the heart of the Bannatyne campus, the University of Manitoba Flow Cytometry Core Facility is a multi-user facility that provides a wide range of flow cytometry-based services. (google.com)
  • The Flow Cytometry Core provides investigators with a resource for quantitative studies of cells, extracellular vesicles, and single-cell gene transcriptome analyses. (ccf.org)
  • Many epithelial neoplasms can be analyzed by flow cytometry (FC), particularly from serous cavity effusion samples, using EpCAM, a cell adhesion molecule expressed on most normal epithelial cells and expressed at a higher level in most epithelial neoplasms. (karger.com)
  • We asked DALL-E, an AI system that can create realistic images and art from a description in natural language, to come up with images of cells that have been analyzed using Flow Cytometry. (innov-research.com)
  • In flow cytometry, we examine cells and particles while they are flowing through a very narrow flow cell. (sysmex.no)
  • EdU staining and flow cytometry were used to detect the effects of LINC00174 and miR-150 on the proliferation and apoptosis of MM cells. (bvsalud.org)
  • Results: The isolated cells showed high expression of CD44 (98.8%), CD73 (100%), and CD90 (97.2%), and moderate expression of STRO-1 (18.4%) and ALDH1 (16.2%), by flow cytometry. (bvsalud.org)
  • The Semrock® line of Nanopede™ optical filters from IDEX Health & Science LLC are designed for flow cytometry applications. (photonics.com)
  • Dichroic Short Pass Filter for Flow Cytometry applications FLD 495 DSP Designed to isolate one band of wavel. (elliotscientific.com)
  • Designed to isolate one band of wavelengths from another by transmission or reflection, these filters are used to separate the excitation source wavelength from the emission wavelengths in flow cytometry and spectroscopy. (elliotscientific.com)
  • Traditional methods for flow cytometry (FCM) data processing rely on subjective manual gating. (jcvi.org)
  • It can be run at 3 different sample flow rates and is capable of analysis rates of up to 20,000 events per second. (ucsf.edu)
  • Analysis occurs at the cuvette flow cell, increasing sensitivity and resolution, allowing detection of 2 relative physical properties as well as up to 18 different colors simultaneously. (ucsf.edu)
  • Dendritic Cell Flow Cytometry Kits " has 1 results in Products. (rndsystems.com)
  • By monitoring T-cell responses by flow cytometry, we observed a recall response after recent vaccination against smallpox. (cdc.gov)
  • Introduction Flow cytometry(FC) plays an important role in the diagnosis of hematologic diseases and the study of cell maturation. (confex.com)
  • Each of the four COPAS FP models features a fixed, specially engineered fluidic path, flow cell and optics optimized for a specific subset of that size range to provide maximum speed, accuracy, resolution and throughput, depending on the application. (unionbio.com)
  • Next the sample is transported into the flow cell. (sysmex.no)
  • Check out Innovative Research's own line of Flow Cytometry products here . (innov-research.com)
  • With our hands-on training program, you will quickly be able to perform flow cytometry techniques on your own using our flow cytometry instruments and specialized analytical software. (google.com)
  • Materials available for reference in the Flow Cytometry Core lab include two introductory tutorials available in iLab, several textbooks on the basics of flow cytometry and the current protocols in cytometry. (ccf.org)
  • If you run samples infrequently, it is recommended to request Assistance to have a Flow Core staff member run samples for you. (ucsf.edu)
  • A simple 3-color flow cytometric panel can provide a high sensitivity and specificity compared to cytomorphology. (karger.com)
  • Method of measurement: with Flow cytometry instrument. (who.int)
  • Covering the visible spectrum in 20-nm full-width, half-maximum steps, the filters are designed to match the rapidly developing flow cytometry market. (photonics.com)