Antigens, Neoplasm
Antigens, Surface
Antigens, Protozoan
Antigens, Polyomavirus Transforming
Polyomavirus antigens which cause infection and cellular transformation. The large T antigen is necessary for the initiation of viral DNA synthesis, repression of transcription of the early region and is responsible in conjunction with the middle T antigen for the transformation of primary cells. Small T antigen is necessary for the completion of the productive infection cycle.
HLA Antigens
Antigens, CD
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.
Antigens, Helminth
Carcinoembryonic Antigen
Antigens, Viral, Tumor
HLA-DR Antigens
Receptors, Antigen, T-Cell
Molecules on the surface of T-lymphocytes that recognize and combine with antigens. The receptors are non-covalently associated with a complex of several polypeptides collectively called CD3 antigens (ANTIGENS, CD3). Recognition of foreign antigen and the major histocompatibility complex is accomplished by a single heterodimeric antigen-receptor structure, composed of either alpha-beta (RECEPTORS, ANTIGEN, T-CELL, ALPHA-BETA) or gamma-delta (RECEPTORS, ANTIGEN, T-CELL, GAMMA-DELTA) chains.
Histocompatibility Antigens
A group of antigens that includes both the major and minor histocompatibility antigens. The former are genetically determined by the major histocompatibility complex. They determine tissue type for transplantation and cause allograft rejections. The latter are systems of allelic alloantigens that can cause weak transplant rejection.
Proliferating Cell Nuclear Antigen
Nuclear antigen with a role in DNA synthesis, DNA repair, and cell cycle progression. PCNA is required for the coordinated synthesis of both leading and lagging strands at the replication fork during DNA replication. PCNA expression correlates with the proliferation activity of several malignant and non-malignant cell types.
Histocompatibility Antigens Class II
Large, transmembrane, non-covalently linked glycoproteins (alpha and beta). Both chains can be polymorphic although there is more structural variation in the beta chains. The class II antigens in humans are called HLA-D ANTIGENS and are coded by a gene on chromosome 6. In mice, two genes named IA and IE on chromosome 17 code for the H-2 antigens. The antigens are found on B-lymphocytes, macrophages, epidermal cells, and sperm and are thought to mediate the competence of and cellular cooperation in the immune response. The term IA antigens used to refer only to the proteins encoded by the IA genes in the mouse, but is now used as a generic term for any class II histocompatibility antigen.
Prostate-Specific Antigen
O Antigens
The lipopolysaccharide-protein somatic antigens, usually from gram-negative bacteria, important in the serological classification of enteric bacilli. The O-specific chains determine the specificity of the O antigens of a given serotype. O antigens are the immunodominant part of the lipopolysaccharide molecule in the intact bacterial cell. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)
Receptors, Antigen, B-Cell
Antigens, CD15
Antigens, Tumor-Associated, Carbohydrate
HLA-A2 Antigen
Antigens, CD8
T-Lymphocytes
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.
Enzyme-Linked Immunosorbent Assay
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.
Immunoglobulin G
Blood Group Antigens
Hepatitis B Surface Antigens
Antigens, CD3
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).
Cross Reactions
HLA-A Antigens
Polymorphic class I human histocompatibility (HLA) surface antigens present on almost all nucleated cells. At least 20 antigens have been identified which are encoded by the A locus of multiple alleles on chromosome 6. They serve as targets for T-cell cytolytic responses and are involved with acceptance or rejection of tissue/organ grafts.
Histocompatibility Antigens Class I
Membrane glycoproteins consisting of an alpha subunit and a BETA 2-MICROGLOBULIN beta subunit. In humans, highly polymorphic genes on CHROMOSOME 6 encode the alpha subunits of class I antigens and play an important role in determining the serological specificity of the surface antigen. Class I antigens are found on most nucleated cells and are generally detected by their reactivity with alloantisera. These antigens are recognized during GRAFT REJECTION and restrict cell-mediated lysis of virus-infected cells.
Lymphocyte Activation
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.
HLA-D Antigens
Human immune-response or Class II antigens found mainly, but not exclusively, on B-lymphocytes and produced from genes of the HLA-D locus. They are extremely polymorphic families of glycopeptides, each consisting of two chains, alpha and beta. This group of antigens includes the -DR, -DQ and -DP designations, of which HLA-DR is most studied; some of these glycoproteins are associated with certain diseases, possibly of immune etiology.
Antibody Specificity
Molecular Sequence Data
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.
Receptors, Antigen
Antigens, CD45
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.
Hepatitis B Antigens
Antigens, CD4
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.
Antigen-Antibody Reactions
Antigens, CD1
Fluorescent Antibody Technique
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.
Immune Sera
Antibody Formation
HLA-B Antigens
Class I human histocompatibility (HLA) surface antigens encoded by more than 30 detectable alleles on locus B of the HLA complex, the most polymorphic of all the HLA specificities. Several of these antigens (e.g., HLA-B27, -B7, -B8) are strongly associated with predisposition to rheumatoid and other autoimmune disorders. Like other class I HLA determinants, they are involved in the cellular immune reactivity of cytolytic T lymphocytes.
Antigens, Differentiation
Immunization
Deliberate stimulation of the host's immune response. ACTIVE IMMUNIZATION involves administration of ANTIGENS or IMMUNOLOGIC ADJUVANTS. PASSIVE IMMUNIZATION involves administration of IMMUNE SERA or LYMPHOCYTES or their extracts (e.g., transfer factor, immune RNA) or transplantation of immunocompetent cell producing tissue (thymus or bone marrow).
Amino Acid Sequence
B-Lymphocytes
MART-1 Antigen
HIV Antigens
Antigens, CD80
A costimulatory ligand expressed by ANTIGEN-PRESENTING CELLS that binds to CTLA-4 ANTIGEN with high specificity and to CD28 ANTIGEN with low specificity. The interaction of CD80 with CD28 ANTIGEN provides a costimulatory signal to T-LYMPHOCYTES, while its interaction with CTLA-4 ANTIGEN may play a role in inducing PERIPHERAL TOLERANCE.
Epstein-Barr Virus Nuclear Antigens
Immunoenzyme Techniques
Antigens, CD19
Antigens, Heterophile
Hepatitis B Core Antigens
Antigens, CD40
A member of the tumor necrosis factor receptor superfamily with specificity for CD40 LIGAND. It is found on mature B-LYMPHOCYTES and some EPITHELIAL CELLS, lymphoid DENDRITIC CELLS. Evidence suggests that CD40-dependent activation of B-cells is important for generation of memory B-cells within the germinal centers. Mutations of the gene for CD40 antigen result in HYPER-IGM IMMUNODEFICIENCY SYNDROME, TYPE 3. Signaling of the receptor occurs through its association with TNF RECEPTOR-ASSOCIATED FACTORS.
Immunodiffusion
Autoantigens
Antibodies
Immunoglobulin M
Antigens, Thy-1
Forssman Antigen
Antigen-Antibody Complex
H-Y Antigen
Antigen-Presenting Cells
A heterogeneous group of immunocompetent cells that mediate the cellular immune response by processing and presenting antigens to the T-cells. Traditional antigen-presenting cells include MACROPHAGES; DENDRITIC CELLS; LANGERHANS CELLS; and B-LYMPHOCYTES. FOLLICULAR DENDRITIC CELLS are not traditional antigen-presenting cells, but because they hold antigen on their cell surface in the form of IMMUNE COMPLEXES for B-cell recognition they are considered so by some authors.
Base Sequence
Dendritic Cells
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).
Complement Fixation Tests
Serologic tests based on inactivation of complement by the antigen-antibody complex (stage 1). Binding of free complement can be visualized by addition of a second antigen-antibody system such as red cells and appropriate red cell antibody (hemolysin) requiring complement for its completion (stage 2). Failure of the red cells to lyse indicates that a specific antigen-antibody reaction has taken place in stage 1. If red cells lyse, free complement is present indicating no antigen-antibody reaction occurred in stage 1.
HLA-DQ Antigens
Flow Cytometry
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.
Antigens, CD86
A costimulatory ligand expressed by ANTIGEN-PRESENTING CELLS that binds to CD28 ANTIGEN with high specificity and to CTLA-4 ANTIGEN with low specificity. The interaction of CD86 with CD28 ANTIGEN provides a stimulatory signal to T-LYMPHOCYTES, while its interaction with CTLA-4 ANTIGEN may play a role in inducing PERIPHERAL TOLERANCE.
Cells, Cultured
Simian virus 40
T-Lymphocytes, Cytotoxic
Immunized T-lymphocytes which can directly destroy appropriate target cells. These cytotoxic lymphocytes may be generated in vitro in mixed lymphocyte cultures (MLC), in vivo during a graft-versus-host (GVH) reaction, or after immunization with an allograft, tumor cell or virally transformed or chemically modified target cell. The lytic phenomenon is sometimes referred to as cell-mediated lympholysis (CML). These CD8-positive cells are distinct from NATURAL KILLER CELLS and NATURAL KILLER T-CELLS. There are two effector phenotypes: TC1 and TC2.
Receptors, Antigen, T-Cell, alpha-beta
Rabbits
Immunoelectrophoresis
A technique that combines protein electrophoresis and double immunodiffusion. In this procedure proteins are first separated by gel electrophoresis (usually agarose), then made visible by immunodiffusion of specific antibodies. A distinct elliptical precipitin arc results for each protein detectable by the antisera.
Immunity, Cellular
CTLA-4 Antigen
Lymphocytes
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.
Interferon-gamma
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.
Antigens, CD79
CA-19-9 Antigen
CD4-Positive T-Lymphocytes
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.
Hemagglutination Tests
gp100 Melanoma Antigen
CD8-Positive T-Lymphocytes
Lewis Blood-Group System
A group of dominantly and independently inherited antigens associated with the ABO blood factors. They are glycolipids present in plasma and secretions that may adhere to the erythrocytes. The phenotype Le(b) is the result of the interaction of the Le gene Le(a) with the genes for the ABO blood groups.
Mice, Inbred Strains
Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations, or by parent x offspring matings carried out with certain restrictions. All animals within an inbred strain trace back to a common ancestor in the twentieth generation.
Ki-67 Antigen
Antigens, T-Independent
Sensitivity and Specificity
Antigens, CD2
Immune Tolerance
The specific failure of a normally responsive individual to make an immune response to a known antigen. It results from previous contact with the antigen by an immunologically immature individual (fetus or neonate) or by an adult exposed to extreme high-dose or low-dose antigen, or by exposure to radiation, antimetabolites, antilymphocytic serum, etc.
Hepatitis B e Antigens
Electrophoresis, Polyacrylamide Gel
Hypersensitivity, Delayed
Cytotoxicity, Immunologic
Antigens, CD28
Antigens, CD95
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.
CA-125 Antigen
Autoantibodies
Minor Histocompatibility Antigens
Allelic alloantigens often responsible for weak graft rejection in cases when (major) histocompatibility has been established by standard tests. In the mouse they are coded by more than 500 genes at up to 30 minor histocompatibility loci. The most well-known minor histocompatibility antigen in mammals is the H-Y antigen.
Immunohistochemistry
Hybridomas
HLA-B27 Antigen
Major Histocompatibility Complex
The genetic region which contains the loci of genes which determine the structure of the serologically defined (SD) and lymphocyte-defined (LD) TRANSPLANTATION ANTIGENS, genes which control the structure of the IMMUNE RESPONSE-ASSOCIATED ANTIGENS, HUMAN; the IMMUNE RESPONSE GENES which control the ability of an animal to respond immunologically to antigenic stimuli, and genes which determine the structure and/or level of the first four components of complement.
Immunoassay
Clone Cells
A group of genetically identical cells all descended from a single common ancestral cell by mitosis in eukaryotes or by binary fission in prokaryotes. Clone cells also include populations of recombinant DNA molecules all carrying the same inserted sequence. (From King & Stansfield, Dictionary of Genetics, 4th ed)
HLA-C Antigens
Class I human histocompatibility (HLA) antigens encoded by a small cluster of structural genes at the C locus on chromosome 6. They have significantly lower immunogenicity than the HLA-A and -B determinants and are therefore of minor importance in donor/recipient crossmatching. Their primary role is their high-risk association with certain disease manifestations (e.g., spondylarthritis, psoriasis, multiple myeloma).
Antigens, CD58
Antigens, CD1d
HLA-A1 Antigen
Peptides
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.
HLA-B7 Antigen
HLA-DR4 Antigen
HLA-DR3 Antigen
ABO Blood-Group System
The major human blood type system which depends on the presence or absence of two antigens A and B. Type O occurs when neither A nor B is present and AB when both are present. A and B are genetic factors that determine the presence of enzymes for the synthesis of certain glycoproteins mainly in the red cell membrane.
Agglutination Tests
Vaccines, Synthetic
Antigens, CD5
Glycoproteins expressed on all mature T-cells, thymocytes, and a subset of mature B-cells. Antibodies specific for CD5 can enhance T-cell receptor-mediated T-cell activation. The B-cell-specific molecule CD72 is a natural ligand for CD5. (From Abbas et al., Cellular and Molecular Immunology, 2d ed, p156)
Antigens, CD20
Antigens, CD27
A member of the tumor necrosis factor receptor superfamily found on most T-LYMPHOCYTES. Activation of the receptor by CD70 ANTIGEN results in the increased proliferation of CD4-POSITIVE T-LYMPHOCYTES and CD8-POSITIVE T-LYMPHOCYTES. Signaling by the activated receptor occurs through its association with TNF RECEPTOR-ASSOCIATED FACTORS.
HLA-A24 Antigen
Antigens, CD34
Isoantigens
Binding Sites, Antibody
Cancer Vaccines
Blotting, Western
Vaccination
Tumor Cells, Cultured
Cloning, Molecular
Adjuvants, Immunologic
Substances that augment, stimulate, activate, potentiate, or modulate the immune response at either the cellular or humoral level. The classical agents (Freund's adjuvant, BCG, Corynebacterium parvum, et al.) contain bacterial antigens. Some are endogenous (e.g., histamine, interferon, transfer factor, tuftsin, interleukin-1). Their mode of action is either non-specific, resulting in increased immune responsiveness to a wide variety of antigens, or antigen-specific, i.e., affecting a restricted type of immune response to a narrow group of antigens. The therapeutic efficacy of many biological response modifiers is related to their antigen-specific immunoadjuvanticity.
Dose-Response Relationship, Immunologic
Glycoproteins
Mice, Transgenic
Lymph Nodes
Immunoblotting
Radioimmunoassay
Classic quantitative assay for detection of antigen-antibody reactions using a radioactively labeled substance (radioligand) either directly or indirectly to measure the binding of the unlabeled substance to a specific antibody or other receptor system. Non-immunogenic substances (e.g., haptens) can be measured if coupled to larger carrier proteins (e.g., bovine gamma-globulin or human serum albumin) capable of inducing antibody formation.
Species Specificity
The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.
Immunoglobulin A
Recombinant Fusion Proteins
Receptors, Antigen, T-Cell, gamma-delta
T-cell receptors composed of CD3-associated gamma and delta polypeptide chains and expressed primarily in CD4-/CD8- T-cells. The receptors appear to be preferentially located in epithelial sites and probably play a role in the recognition of bacterial antigens. The T-cell receptor gamma/delta chains are separate and not related to the gamma and delta chains which are subunits of CD3 (see ANTIGENS, CD3).
Antigens, CD7
Erythrocytes
Bacterial Vaccines
Immunoelectrophoresis, Two-Dimensional
Hepatitis Antigens
Immunoglobulins
Multi-subunit proteins which function in IMMUNITY. They are produced by B LYMPHOCYTES from the IMMUNOGLOBULIN GENES. They are comprised of two heavy (IMMUNOGLOBULIN HEAVY CHAINS) and two light chains (IMMUNOGLOBULIN LIGHT CHAINS) with additional ancillary polypeptide chains depending on their isoforms. The variety of isoforms include monomeric or polymeric forms, and transmembrane forms (B-CELL ANTIGEN RECEPTORS) or secreted forms (ANTIBODIES). They are divided by the amino acid sequence of their heavy chains into five classes (IMMUNOGLOBULIN A; IMMUNOGLOBULIN D; IMMUNOGLOBULIN E; IMMUNOGLOBULIN G; IMMUNOGLOBULIN M) and various subclasses.
Isoantibodies
HLA-A3 Antigen
Immunologic Memory
Antigens, CD11c
Herpesvirus 4, Human
Antibody Affinity
A measure of the binding strength between antibody and a simple hapten or antigen determinant. It depends on the closeness of stereochemical fit between antibody combining sites and antigen determinants, on the size of the area of contact between them, and on the distribution of charged and hydrophobic groups. It includes the concept of "avidity," which refers to the strength of the antigen-antibody bond after formation of reversible complexes.
Polymerase Chain Reaction
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.
Melanoma
A malignant neoplasm derived from cells that are capable of forming melanin, which may occur in the skin of any part of the body, in the eye, or, rarely, in the mucous membranes of the genitalia, anus, oral cavity, or other sites. It occurs mostly in adults and may originate de novo or from a pigmented nevus or malignant lentigo. Melanomas frequently metastasize widely, and the regional lymph nodes, liver, lungs, and brain are likely to be involved. The incidence of malignant skin melanomas is rising rapidly in all parts of the world. (Stedman, 25th ed; from Rook et al., Textbook of Dermatology, 4th ed, p2445)
Cytotoxicity Tests, Immunologic
Genes, MHC Class II
Cell Division
Antibodies, Anti-Idiotypic
Cross-Priming
HLA-B44 Antigen
Epitopes, T-Lymphocyte
Membrane Proteins
Counterimmunoelectrophoresis
Thymus Gland
A single, unpaired primary lymphoid organ situated in the MEDIASTINUM, extending superiorly into the neck to the lower edge of the THYROID GLAND and inferiorly to the fourth costal cartilage. It is necessary for normal development of immunologic function early in life. By puberty, it begins to involute and much of the tissue is replaced by fat.
Peptide Fragments
Immunologic Techniques
Haptens
Macrophages
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.)
Herpes virus induced proteasome-dependent degradation of the nuclear bodies-associated PML and Sp100 proteins. (1/1378)
The PML protein is associated to nuclear bodies (NBs) whose functions are as yet unknown. PML and two other NBs-associated proteins, Sp100 And ISG20 are directly induced by interferons (IFN). PML and Sp100 proteins are covalently linked to SUMO-1, and ubiquitin-like peptide. PML NBs are disorganized in acute promyelocytic leukemia and during several DNA virus infections. In particular, the HSV-1 ICP0 protein is known to delocalize PML from NBs. Thus, NBs could play an important role in oncogenesis, IFN response and viral infections. Here, we show that HSV-1 induced PML protein degradation without altering its mRNA level. This degradation was time- and multiplicity of infection-dependent. Sp100 protein was also degraded, while another SUMO-1 conjugated protein, RanGAP1 and the IFN-induced protein kinase PKR were not. The proteasome inhibitor MG132 abrogated the HSV-1-induced PML and Sp100 degradation and partially restored their NB-localization. HSV-1 induced PML and Sp100 degradation constitutes a new example of viral inactivation of IFN target gene products. (+info)Apoptosis during breast carcinoma progression. (2/1378)
The purpose of this study was to investigate apoptosis, proliferation, and the expression of apoptosis-influencing proteins bcl-2 and bax and estrogen and progesterone receptors during breast carcinoma progression. The material consisted of 53 paired breast carcinoma samples representing primary and recurrent tumors and 24 control samples. The recurrent sample was located either in the breast scar tissue or at a distant metastatic site. Apoptosis was detected both morphologically and by 3' end labeling of fragmented DNA. Cell proliferation was evaluated immunohistochemically by the MIB index. The expressions of bcl-2, bax, and estrogen and progesterone receptors were studied immunohistochemically. There was a significant increase in the extent of apoptosis and proliferation in recurrent tumors compared to the primary lesions (P = 0.015 and P = 0.038, respectively). In primary tumors with an apoptotic index of >0.50%, the survival of the patients was significantly shorter (P = 0.015). In cases with a significant increase in apoptosis or proliferation in the recurrent tumor, the survival of the patients was significantly shorter (P = 0.009 and P = 0.003, respectively). Of the variables analyzed, bcl-2 expression and a positive estrogen receptor status were significantly associated with a low extent of apoptosis (P = 0.010 and P = 0.042, respectively). Their changes were parallel to the changes in apoptosis during tumor progression, although the associations did not reach statistical significance. The results show that increased apoptosis is associated with a worse prognosis in breast carcinoma. A significant increase in apoptosis in recurrent breast carcinoma lesions predicts a worse clinical outcome. (+info)Yeast and human genes that affect the Escherichia coli SOS response. (3/1378)
The sequencing of the human genome has led to the identification of many genes whose functions remain to be determined. Because of conservation of genetic function, microbial systems have often been used for identification and characterization of human genes. We have investigated the use of the Escherichia coli SOS induction assay as a screen for yeast and human genes that might play a role in DNA metabolism and/or in genome stability. The SOS system has previously been used to analyze bacterial and viral genes that directly modify DNA. An initial screen of meiotically expressed yeast genes revealed several genes associated with chromosome metabolism (e.g., RAD51 and HHT1 as well as others). The SOS induction assay was then extended to the isolation of human genes. Several known human genes involved in DNA metabolism, such as the Ku70 end-binding protein and DNA ligase IV, were identified, as well as a large number of previously unknown genes. Thus, the SOS assay can be used to identify and characterize human genes, many of which may participate in chromosome metabolism. (+info)Replication-mediated DNA damage by camptothecin induces phosphorylation of RPA by DNA-dependent protein kinase and dissociates RPA:DNA-PK complexes. (4/1378)
Replication protein A (RPA) is a DNA single-strand binding protein essential for DNA replication, recombination and repair. In human cells treated with the topoisomerase inhibitors camptothecin or etoposide (VP-16), we find that RPA2, the middle-sized subunit of RPA, becomes rapidly phosphorylated. This response appears to be due to DNA-dependent protein kinase (DNA-PK) and to be independent of p53 or the ataxia telangiectasia mutated (ATM) protein. RPA2 phosphorylation in response to camptothecin required ongoing DNA replication. Camptothecin itself partially inhibited DNA synthesis, and this inhibition followed the same kinetics as DNA-PK activation and RPA2 phosphorylation. DNA-PK activation and RPA2 phosphorylation were prevented by the cell-cycle checkpoint abrogator 7-hydroxystaurosporine (UCN-01), which markedly potentiates camptothecin cytotoxicity. The DNA-PK catalytic subunit (DNA-PKcs) was found to bind RPA which was replaced by the Ku autoantigen upon camptothecin treatment. DNA-PKcs interacted directly with RPA1 in vitro. We propose that the encounter of a replication fork with a topoisomerase-DNA cleavage complex could lead to a juxtaposition of replication fork-associated RPA and DNA double-strand end-associated DNA-PK, leading to RPA2 phosphorylation which may signal the presence of DNA damage to an S-phase checkpoint mechanism. KEYWORDS: camptothecin/DNA damage/DNA-dependent protein kinase/RPA2 phosphorylation (+info)OBA/Ku86: DNA binding specificity and involvement in mammalian DNA replication. (5/1378)
Ors-binding activity (OBA) was previously semipurified from HeLa cells through its ability to interact specifically with the 186-basepair (bp) minimal replication origin of ors8 and support ors8 replication in vitro. Here, through competition band-shift analyses, using as competitors various subfragments of the 186-bp minimal ori, we identified an internal region of 59 bp that competed for OBA binding as efficiently as the full 186-bp fragment. The 59-bp fragment has homology to a 36-bp sequence (A3/4) generated by comparing various mammalian replication origins, including the ors. A3/4 is, by itself, capable of competing most efficiently for OBA binding to the 186-bp fragment. Band-shift elution of the A3/4-OBA complex, followed by Southwestern analysis using the A3/4 sequence as probe, revealed a major band of approximately 92 kDa involved in the DNA binding activity of OBA. Microsequencing analysis revealed that the 92-kDa polypeptide is identical to the 86-kDa subunit of human Ku antigen. The affinity-purified OBA fraction obtained using an A3/4 affinity column also contained the 70-kDa subunit of Ku and the DNA-dependent protein kinase catalytic subunit. In vitro DNA replication experiments in the presence of A3/4 oligonucleotide or anti-Ku70 and anti-Ku86 antibodies implicate Ku in mammalian DNA replication. (+info)Androgen receptor expression in male breast carcinoma: lack of clinicopathological association. (6/1378)
Androgen receptor (AR) expression was retrospectively analysed in 47 primary male breast carcinomas (MBCs) using a monoclonal antibody on formalin-fixed, paraffin-embedded tissues. AR immunopositivity was detected in 16 out of 47 (34%) cases. No association was found with patient age, tumour stage, progesterone receptor (PGR) or p53 protein expression. Well-differentiated MBCs tended to be AR positive more often than poorly differentiated ones (P = 0.08). A negative association was found between ARs and cell proliferative activity: MIB-1 scores were higher (25.4%) in AR-negative than in AR-positive cases (21.11%; P = 0.04). A strong positive association (P = 0.0001) was found between ARs and oestrogen receptors (ERs). In univariate analysis, ARs (as well as ERs and PGRs) were not correlated with overall survival; tumour histological grade (P = 0.02), size (P = 0.01), p53 expression (P = 0.0008) and MIB-1 scores (P = 0.0003) had strong prognostic value. In multivariate survival analysis, only p53 expression (P = 0.002) and histological grade (P = 0.02) retained independent prognostic significance. In conclusion, the lack of association between AR and most clinicopathological features and survival, together with the absence of prognostic value for ER/PGR status, suggest that MBCs are biologically different from female breast carcinomas and make it questionable to use antihormonal therapy for patients with MBC. (+info)The DNA-dependent protein kinase catalytic activity regulates DNA end processing by means of Ku entry into DNA. (7/1378)
The DNA-dependent protein kinase (DNA-PK) is required for double-strand break repair in mammalian cells. DNA-PK contains the heterodimer Ku and a 460-kDa serine/threonine kinase catalytic subunit (p460). Ku binds in vitro to DNA termini or other discontinuities in the DNA helix and is able to enter the DNA molecule by an ATP-independent process. It is clear from in vitro experiments that Ku stimulates the recruitment to DNA of p460 and activates the kinase activity toward DNA-binding protein substrates in the vicinity. Here, we have examined in human nuclear cell extracts the influence of the kinase catalytic activity on Ku binding to DNA. We demonstrate that, although Ku can enter DNA from free ends in the absence of p460 subunit, the kinase activity is required for Ku translocation along the DNA helix when the whole Ku/p460 assembles on DNA termini. When the kinase activity is impaired, DNA-PK including Ku and p460 is blocked at DNA ends and prevents their processing by either DNA polymerization, degradation, or ligation. The control of Ku entry into DNA by DNA-PK catalytic activity potentially represents an important regulation of DNA transactions at DNA termini. (+info)Self assembly of NuMA: multiarm oligomers as structural units of a nuclear lattice. (8/1378)
NuMA is a nuclear matrix protein in interphase and relocates to the spindle poles in mitotis. Different NuMA constructs, in which either N- or C-terminal domains were deleted, and the full-length construct were expressed in Escherichia coli, and the NuMA polypeptides were purified to homogeneity and allowed to assemble in vitro. Electron microscopy showed that NuMA can build multiarm oligomers by interaction of the C-terminal globular domains. Each arm of the oligomer corresponds to a NuMA dimer. Oligomers with up to 10 or 12 arms have been observed for both full-length NuMA and for constructs that still contain the proximal part of the C-terminal tail domain. Other results from this laboratory have shown that transient overexpression of NuMA in HeLa cells induces a nuclear scaffold with a quasi-hexagonal organization that can fill the nuclei. Here we show that computer modelling of the three-dimensional packing of NuMA into such scaffolds can explain the different spacing of the hexagons seen when constructs with different coiled-coil lengths are used. Thus, the 12 arm oligomer, for which we have in vitro evidence, may be the structural unit from which the nuclear scaffold in transfected cells is built. (+info)
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Flow cytometry
Nuclear antigens. *Oxidative burst. *pH, intracellular ionized calcium, magnesium, membrane potential. *Protein expression and ... Various combinations (DNA/surface antigens, etc.). Applications[edit]. The technology has applications in a number of fields, ... co-expression of cell surface and intracellular antigens can also be analyzed.[37] In marine biology, the autofluorescent ... "Demonstration that antigen-binding cells are precursors of antibody-producing cells after purification with a fluorescence- ...
POLD1
PCNA stimulates both polymerases (proliferating cell nuclear antigen; red ring). The RFC (replication factor C) complex with ... required for Proliferating Cell Nuclear Antigen (PCNA) binding and recruitment of accessory subunits respectively.[45] CysB ... nuclear chromosome, telomeric region. • delta DNA polymerase complex. • cytosol. Biological process. • nucleotide-excision ... Alternatively, Polδ is associated with lamins and the nuclear envelope during G1/S arrest or early S phase; mutations in lamins ...
Kaposi's sarcoma-associated herpesvirus
ORF73 - LANA, latency-associated nuclear antigen- tethers genome to chromosome during latency, also regulates host gene ... state expressing the viral latency-associated nuclear antigen, LANA. Crucial for the Entry of the KSHV [10] is the EPH receptor ... PAN, polyadenylated nuclear RNA - non-coding linear and circular RNAs miRNAs (mirKs) - viral microRNAs expressed during latency ... Direct Transcriptional Targets of the Kaposi's Sarcoma-Associated Herpesvirus Rta Lytic Switch Protein by Conditional Nuclear ...
Epithelial cell adhesion molecule
February 2009). "Nuclear signalling by tumour-associated antigen EpCAM". Nature Cell Biology. 11 (2): 162-71. doi:10.1038/ ... Balzar M, Winter MJ, de Boer CJ, Litvinov SV (October 1999). "The biology of the 17-1A antigen (Ep-CAM)". Journal of Molecular ... Münz M, Kieu C, Mack B, Schmitt B, Zeidler R, Gires O (July 2004). "The carcinoma-associated antigen EpCAM upregulates c-myc ... Litvinov SV, Velders MP, Bakker HA, Fleuren GJ, Warnaar SO (April 1994). "Ep-CAM: a human epithelial antigen is a homophilic ...
DNA-PKcs
The second component is the autoimmune antigen Ku. On its own, DNA-PKcs is inactive and relies on Ku to direct it to DNA ends ... DNA-PKcs is the catalytic subunit of a nuclear DNA-dependent serine/threonine protein kinase called DNA-PK. ... Ting NS, Kao PN, Chan DW, Lintott LG, Lees-Miller SP (January 1998). "DNA-dependent protein kinase interacts with antigen ... Matheos D, Ruiz MT, Price GB, Zannis-Hadjopoulos M (October 2002). "Ku antigen, an origin-specific binding protein that ...
LNCaP
... cells also express Prostate Specific Antigen (PSA). In vivo, Male mice develop tumors earlier and at a greater frequency ... High-affinity specific androgen and estrogen receptors are present in the cytosol and nuclear fractions. The LNCaP line is ... and Prostate Specific Antigen (PSA) however, M, C4, and C5 sublines express 5-10X more PSA mRNA. M, C4, C5 and C4-2 also ...
Infectious mononucleosis
EBV nuclear antigen (EBNA) Antibody to EBNA slowly appears 2 to 4 months after onset of symptoms and persists for the rest of a ... Epstein-Barr nuclear antigen detection. While it is not normally recognizable until several weeks into the disease, and is ... Early antigen (EA) Anti-EA IgG appears in the acute phase of illness and disappears after 3 to 6 months. It is associated with ... The antibodies involved in the test do not interact with the Epstein-Barr virus or any of its antigens. The monospot test is ...
HLA-DR4
... an analysis of 622 nuclear families". Tissue Antigens. 62 (2): 162-9. doi:10.1034/j.1399-0039.2003.00071.x. PMID 12889996. ... Kaibe M, Takakuwa K, Murakawa H, Ishii K, Tamura M, Tanaka K (2006). "Studies on the human leukocyte antigens in patients with ... Matsuyama M, Hashimoto K, Yamasaki Y, Shirakura R, Higuchi R, Miyajima T, Amemiya H (1981). "HLA-DR antigens in pemphigus among ... Tissue Antigens. 41 (2): 57-64. doi:10.1111/j.1399-0039.1993.tb01980.x. PMID 8475491. Undlien D, Friede T, Rammensee H, Joner G ...
HLA-DQ8
... an analysis of 622 nuclear families". Tissue Antigens. 62 (2): 162-9. doi:10.1034/j.1399-0039.2003.00071.x. PMID 12889996. ... HLA-DQ8 (DQ8) is a human leukocyte antigen serotype within the HLA-DQ (DQ) serotype group. DQ8 is a split antigen of the DQ3 ... These split antigens are the allele products of the DQB1*0302 and DQB1*0305, respectively. DQB1*0302 and is found most often in ... and 2.Zhou L, Lin B, Xie Y, Liu Z, Yan W, Xu A (2005). "Polymorphism of human leukocyte antigen-DRB1, -DQB1, and -DPB1 genes of ...
p21
... interacts with proliferating cell nuclear antigen (PCNA), a DNA polymerase accessory factor, and plays a regulatory role in ... Podust VN, Podust LM, Goubin F, Ducommun B, Huebscher U (1995). "Mechanism of inhibition of proliferating cell nuclear antigen- ... with proliferating cell nuclear antigen impedes negative growth control". J. Biol. Chem. 276 (4): 2766-74. doi:10.1074/jbc. ... "Human proliferating cell nuclear antigen, poly(ADP-ribose) polymerase-1, and p21waf1/cip1. A dynamic exchange of partners". J. ...
RA33
Anti-RA33 antibodies can be easily detected by immunoblotting employing crude nuclear extracts or the recombinant antigen. ... The antigen was therefore named RA33. Protein sequencing of highly purified RA33 revealed that it was identical to hetergoneous ... Steiner et al.: Purification and partial sequencing of the nuclear autoantigen RA33 shows that it is indistinguishable from the ... RA33, also known as heterogeneous nuclear ribonucleoprotein A2/B1, is an autoantigen in human systemic autoimmune diseases. In ...
Ki-67 (protein)
... antigen identified by monoclonal antibody Ki-67). Antigen KI-67 is a nuclear protein that is associated with cellular ... Gerdes J, Schwab U, Lemke H, Stein H (1983). "Production of a mouse monoclonal antibody reactive with a human nuclear antigen ... PCNA - Proliferating Cell Nuclear Antigen, expressed during the DNA synthesis. Immunofluorescent antibody staining against ... Antigen KI-67 also known as Ki-67 or MKI67 (Marker Of Proliferation Ki-67) is a protein that in humans is encoded by the MKI67 ...
Anti-neutrophil cytoplasmic antibody
GS-ANA are antibodies directed to granulocyte specific nuclear antigens. Atypical ANCA are thought to be antigens similar to ... p-ANCA without nuclear extension has perinuclear staining without nuclear extension and GS-ANA shows nuclear staining on ... The c-ANCA antigen is specifically proteinase 3 (PR3). p-ANCA antigens include myeloperoxidase (MPO) and bacterial permeability ... The most common antigens used on an ELISA microtitre plate are MPO and PR3, which are usually tested for after a positive IF ...
MCL1
Differential role of proliferating cell nuclear antigen". J. Biol. Chem. 275 (50): 39458-65. doi:10.1074/jbc.M006626200. PMID ...
RIOX2
"Entrez Gene: MINA MYC induced nuclear antigen". Bonaldo MF, Lennon G, Soares MB (1997). "Normalization and subtraction: two ...
SHPRH
"Human SHPRH is a ubiquitin ligase for Mms2-Ubc13-dependent polyubiquitylation of proliferating cell nuclear antigen". ... "Human SHPRH suppresses genomic instability through proliferating cell nuclear antigen polyubiquitination". The Journal of Cell ...
MNDA
Myeloid cell Nuclear Differentiation Antigen is a protein that in humans is encoded as MNDA gene. The myeloid cell nuclear ... nuclear antigen of Kaposi's sarcoma-associated herpesvirus interacts with human myeloid cell nuclear differentiation antigen ... Briggs RC, Atkinson JB, Miranda RN (May 2005). "Variable expression of human myeloid specific nuclear antigen MNDA in monocyte ... "Entrez Gene: MNDA myeloid cell nuclear differentiation antigen". Burrus GR, Briggs JA, Briggs RC (February 1992). " ...
LGTN
"Large-scale characterization of HeLa cell nuclear phosphoproteins". Proceedings of the National Academy of Sciences of the ... "Large scale identification of human hepatocellular carcinoma-associated antigens by autoantibodies". Journal of Immunology. 169 ...
Ubiquitin
Proliferating cell nuclear antigen (PCNA) is a protein involved in DNA synthesis. Under normal physiological conditions PCNA is ... Ishikura S, Weissman AM, Bonifacino JS (July 2010). "Serine residues in the cytosolic tail of the T-cell antigen receptor alpha ... The ubiquitination system functions in a wide variety of cellular processes, including: Antigen processing Apoptosis Biogenesis ... human leukocyte antigen F-associated (FAT10), autophagy-8 (ATG8) and -12 (ATG12), Few ubiquitin-like protein (FUB1), MUB ( ...
LANA
The latency-associated nuclear antigen (LANA-1) or latent nuclear antigen (LNA, LNA-1), is a Kaposi's sarcoma-associated ... Kellam P, Boshoff C, Whitby D, Matthews S, Weiss RA, Talbot SJ (1997). "Identification of a major latent nuclear antigen, LNA-1 ... Garber AC, Hu J, Renne R (July 2002). "Latency-associated nuclear antigen (LANA) cooperatively binds to two sites within the ... Lim C, Sohn H, Gwack Y, Choe J (November 2000). "Latency-associated nuclear antigen of Kaposi's sarcoma-associated herpesvirus ...
ARID4B
Cui D, Jin G, Gao T, Sun T, Tian F, Estrada GG, Gao H, Sarai A (2004). "Characterization of BRCAA1 and its novel antigen ... "Large-scale characterization of HeLa cell nuclear phosphoproteins". Proc. Natl. Acad. Sci. U.S.A. 101 (33): 12130-5. Bibcode: ...
IGSF2
... ligation inhibits TCR/CD3-induced IL-2 production by blocking Ca2+ flux and nuclear factor of activated T cell nuclear ... Role in T-lymphocyte activation". Tissue Antigens. 50 (5): 439-48. doi:10.1111/j.1399-0039.1997.tb02898.x. PMID 9389317. Soares ...
MYBBP1A
2002). "A proteomics approach to identify proliferating cell nuclear antigen (PCNA)-binding proteins in human cell lysates. ... NLS-dependent protein nuclear import complex. • nucleolus. • nucleus. Biological process. • positive regulation of gene ... "Large-scale characterization of HeLa cell nuclear phosphoproteins". Proc. Natl. Acad. Sci. U.S.A. 101 (33): 12130-5. doi ...
Crithidia luciliae
The high concentration of dsDNA and the absence of human nuclear antigens in the kinetoplast provides a specific substrate for ... "Guidelines for clinical use of the antinuclear antibody test and tests for specific autoantibodies to nuclear antigens. ... The kinetoplast found in C.luciliae allows them to be used for the detection of anti-dsDNA antibodies, a type of anti-nuclear ... Anti-nuclear antibodies are a common feature in SLE and anti-dsDNA antibodies are highly specific for the disease. ...
Epstein-Barr virus
Latent antigens[edit]. All EBV nuclear proteins are produced by alternative splicing of a transcript starting at either the Cp ... Protein/gene/antigen Stage Description EBNA-1 latent+lytic EBNA-1 protein binds to a replication origin (oriP) within the viral ... The initiation codon of the EBNA-LP coding region is created by an alternate splice of the nuclear protein transcript. In the ... EBER-1/EBER-2 are small nuclear RNAs, which bind to certain nucleoprotein particles, enabling binding to PKR (dsRNA-dependent ...
POLDIP2
The encoded protein also interacts with proliferating cell nuclear antigen. Some transcripts of this gene overlap in a tail-to- ... that interacts with the p50 subunit of DNA polymerase delta and proliferating cell nuclear antigen". The Journal of Biological ... October 2013). "PDIP38 is translocated to the spliceosomes/nuclear speckles in response to UV-induced DNA damage and is ... September 2007). "The cell adhesion receptor carcinoembryonic antigen-related cell adhesion molecule 1 regulates ...
Richard Wood (molecular biologist)
Shivji, Mahmud K.K. (1992). "Proliferating cell nuclear antigen is required for DNA excision repair". Cell. 69 (2): 367-374. ... identifying proliferating cell nuclear antigen (PCNA) as part of the NER complex and identifying mammalian repair polymerases. ... "POLN, a Nuclear PolA Family DNA Polymerase Homologous to the DNA Cross-link Sensitivity Protein Mus308". Journal of Biological ...
Cyclin D1
Matsuoka S, Yamaguchi M, Matsukage A (April 1994). "D-type cyclin-binding regions of proliferating cell nuclear antigen". The ... "Cyclin D1 repression of nuclear respiratory factor 1 integrates nuclear DNA synthesis and mitochondrial function". Proceedings ... Baldin V, Lukas J, Marcote MJ, Pagano M, Draetta G (May 1993). "Cyclin D1 is a nuclear protein required for cell cycle ... Independent of CDK, cyclin D1 binds to nuclear receptors (including estrogen receptor α, thyroid hormone receptor, PPARγ and AR ...
SnRNP70
"Entrez Gene: SNRP70 small nuclear ribonucleoprotein 70kDa polypeptide (RNP antigen)". Spritz RA, Strunk K, Surowy CS, ... snRNP70 also known as U1 small nuclear ribonucleoprotein 70 kDa is a protein that in humans is encoded by the SNRNP70 gene. ... Klein Gunnewiek JM, van Aarssen Y, van der Kemp A, Nelissen R, Pruijn GJ, van Venrooij WJ (August 1997). "Nuclear accumulation ... snRNP70 is a small nuclear ribonucleoprotein that associates with U1 spliceosomal RNA, forming the U1snRNP a core component of ...
Sepsis
Upon detection of microbial antigens, the host systemic immune system is activated. Immune cells not only recognise pathogen- ... Consequentially, transcription factors such as nuclear factor-kappa B and activator protein-1, will up-regulate the expression ... Superantigens simultaneously bind major histocompatibility complex and T-cell receptors in the absence of antigen presentation ...
Hematopoietic stem cell transplantation
... nuclear workers whose own marrow had been damaged by irradiation caused by a criticality accident at the Vinča Nuclear ... for human leukocyte antigen (HLA) matching (see PGD for HLA matching) in order to donate to an ill sibling requiring HSCT. ... The Egyptian Journal of Radiology and Nuclear Medicine. 48 (1): 237-43. doi:10.1016/j.ejrnm.2016.12.013.. ... the donor should preferably have the same human leukocyte antigens (HLA) as the recipient. About 25 to 30 percent of allogeneic ...
Apolipoprotein C4
A critical role for nuclear liver X receptors alpha and beta". J. Biol. Chem. 277 (35): 31900-8. doi:10.1074/jbc.M202993200. ... "Expression of apolipoprotein C-IV is regulated by Ku antigen/peroxisome proliferator-activated receptor gamma complex and ...
Evolution of biological complexity
Pays, E. (2005). "Regulation of antigen gene expression in Trypanosoma brucei". Trends Parasitol. 21 (11): 517-20. doi:10.1016/ ... has evolved so many copies of its major surface antigen that about 10% of its genome is devoted to different versions of this ...
Faktor aktivacije B-ćelija
2000). "Characterization of a new member of the TNF family expressed on antigen presenting cells.". Biol. Chem. 380 (12): 1443- ... 1999). "Identification and characterization of a novel cytokine, THANK, a TNF homologue that activates apoptosis, nuclear ... "BLyS receptor signatures resolve homeostatically independent compartments among naïve and antigen-experienced B cells.". Semin ...
HLA A1-B8-DR3-DQ2
"Tissue Antigens. 64 (5): 575-80. doi:10.1111/j.1399-0039.2004.00310.x. PMID 15496200.. ... The appearance of anti-nuclear antibodies in autoimmune hepatitis was found to correlated with A1-B8-DR3.[26] One of the ... An A1::DQ2 appears in India, however its major antigen genes superficially resemble European A1-B8 and it appears to be a ... November 1979). "Primary biliary cirrhosis associated with HLA-DRw3". Tissue Antigens. 14 (5): 449-52. doi:10.1111/j.1399- ...
RAD51
nuclear chromosome, telomeric region. • nucleus. • nuclear chromatin. • lateral element. • cytosol. • condensed nuclear ... nuclear chromosome. • mitochondrial matrix. • nucleolus. • mitochondrion. • perinuclear region of cytoplasm. • chromatin. • ... an evolutionarily conserved nuclear protein that interacts with BRCA2". Oncogene. 20 (3): 336-45. doi:10.1038/sj.onc.1204098. ... "Analysis of murine Brca2 reveals conservation of protein-protein interactions but differences in nuclear localization signals ...
Antiphospholipid syndrome
... that use recombinant antigens will not have a false-positive result. ... Anti-nuclear antibody. *PBC: *Anti-gp210. *Anti-p62. *Anti-sp100. *ENA: *Anti-topoisomerase/Scl-70 ...
Innate immune system - Simple English Wikipedia, the free encyclopedia
High-mobility group box 1 protein (HMGB1): nuclear weapon in the immune arsenal. Nature Reviews Immunology 5''' (4) 331-342. [1 ... rid the body of neutralized antigen-antibody complexes.. Elements of the complement cascade can be found in many non-mammalian ... Activates the adaptive immune system through a process known as antigen presentation. ... Dendritic cells are very important in the process of antigen presentation, and serve as a link between the innate and adaptive ...
DNA paternity testing
... or using human leukocyte antigen antigens. The current techniques for paternity testing are using polymerase chain reaction ( ... This genetic material is known as the nuclear genome of the individual, because it is found in the nucleus. ... Proving a relationship based on comparison of the mitochondrial genome is much easier than that based on the nuclear genome. ... Besides the nuclear DNA in the nucleus, the mitochondria in the cells also have their own genetic material termed the ...
p21, wolna encyklopedia
Human proliferating cell nuclear antigen, poly(ADP-ribose) polymerase-1, and p21waf1/cip1. A dynamic exchange of partners. „J. ... Białko p21 (WAF1) jest w stanie oddziaływać z jądrowym antygenem komórek proliferujących (proliferating cell nuclear antigen − ... Interaction of CR6 (GADD45gamma ) with proliferating cell nuclear antigen impedes negative growth control. „J. Biol. Chem.". ... Regulation of DNA replication and repair proteins through interaction with the front side of proliferating cell nuclear antigen ...
Interleukin 8
Primarna funkcija IL-8 citokina je da regrutuje neutrofile da fagocitoziraju antigen koji je pobudio antigenski obrazac toll- ... Vlahopoulos S, Boldogh I, Casola A, Brasier AR (September 1999). "Nuclear factor-kappaB-dependent induction of interleukin-8 ... gene expression by tumor necrosis factor alpha: evidence for an antioxidant sensitive activating pathway distinct from nuclear ...
Proteasome
Zhang M, Coffino P (March 2004). "Repeat sequence of Epstein-Barr virus-encoded nuclear antigen 1 protein interrupts proteasome ... Peptide antigens are displayed by the major histocompatibility complex class I (MHC) proteins on the surface of antigen- ... helping the virus propagate by preventing antigen presentation on the major histocompatibility complex.[63] ... "Targeting of nuclear factor-kappaB and proteasome by dithiocarbamate complexes with metals". Current Pharmaceutical Design. 13 ...
Innate immune system
Normal body cells are not recognized and attacked by NK cells because they express intact self MHC antigens. Those MHC antigens ... Lotze MT, Tracey KJ (April 2005). "High-mobility group box 1 protein (HMGB1): nuclear weapon in the immune arsenal". Nature ... Dendritic cells are very important in the process of antigen presentation, and serve as a link between the innate and adaptive ... rid the body of neutralised antigen-antibody complexes.. There are three different complement systems: Classical, alternative, ...
CD30
I. Partial characterization of soluble Ki-1 antigen and detection of the antigen in cell culture supernatants and in serum by ... TRAF-2 mediates CD30-induced nuclear factor kappa B activation". Proceedings of the National Academy of Sciences of the United ... Josimovic-Alasevic O, Dürkop H, Schwarting R, Backé E, Stein H, Diamantstein T (Jan 1989). "Ki-1 (CD30) antigen is released by ... CD30+Antigens at the US National Library of Medicine Medical Subject Headings (MeSH) ...
Glossary of biology
A type of organism consisting of cells which have a nucleus enclosed within a distinct nuclear membrane, unlike prokaryotes. ... of the immune system in response to specific antigens invading the body. The theory has become the widely accepted model for ... which act as a critical part of the immune response by specifically recognizing and binding to particular antigens, such as ... system responds to infection and how certain types of B and T lymphocytes are selected for destruction of specific antigens.[2] ...
Cyclin-dependent kinase 4
nuclear membrane. • membrane. • transcription factor complex. • bicellular tight junction. • nucleoplasm. • nucleolus. • ... Goodpasture-antigen-binding protein kinase (EC 2.7.11.9). *-. IκB kinase (EC 2.7.11.10). *CHUK ... Component of the ternary complex, cyclin D/CDK4/CDKN1B, required for nuclear translocation and activity of the cyclin D-CDK4 ... Li J, Melvin WS, Tsai MD, Muscarella P (2004). "The nuclear protein p34SEI-1 regulates the kinase activity of cyclin-dependent ...
Wiskott-Aldrich syndrome protein
regulation of T cell antigen processing and presentation. • immune response. • epidermis development. • actin polymerization or ... Activated WASP leads to nuclear localization of actin filaments and this can lead to premature apoptosis, aneuploidy and ... of WASP depend on its activity as a scaffold protein for assembly of effective signalling complexes downstream of antigen ... "The intersectin 2 adaptor links Wiskott Aldrich Syndrome protein (WASp)-mediated actin polymerization to T cell antigen ...
PRNP
nuclear membrane. • intracellular membrane-bounded organelle. • postsynapse. Biological process. • negative regulation of ... "Localization of a human gene homologous to the PrP gene on the p arm of chromosome 20 and detection of PrP-related antigens in ...
CASS4
Upregulated in eosinophils post antigen exposure.[21] Cystic fibrosis Possible correlation with severity of the lung ... nuclear factor, erythroid 2-like1), MAX1, C/EBPα, CHOP-10 (C/EBP homologous protein 10), POU3F1 (POU domain, class 3, ...
Influenza
The resulting rapid change in viral genetics produces antigenic shifts, which are sudden changes from one antigen to another. ... nuclear export protein), PA, PB1 (polymerase basic 1), PB1-F2 and PB2.[65] ... If a human influenza virus is produced that has entirely new antigens, everybody will be susceptible, and the novel influenza ... Therapeutic biologics are designed to activate the immune response to virus or antigens. Typically, biologics do not target ...
Epigenetics
... has a 10-40-fold preference for hemimethylated DNA and interacts with the proliferating cell nuclear antigen (PCNA).[51] ... "N6-Methyladenosine in nuclear RNA is a major substrate of the obesity-associated FTO". Nature Chemical Biology. 7 (12): 885- ...
Lasker Award
Discoveries concerning nuclear reprogramming, the process that instructs specialized adult cells to form early stem cells- ... cells-the preeminent component of the immune system that initiates and regulates the body's response to foreign antigens.[34] ... For the discovery of the superfamily of nuclear hormone receptors and elucidation of a unifying mechanism that regulates ...
Anti-nuclear antibody
Extractable nuclear antigens[edit]. Extractable nuclear antigens (ENA) are a group of autoantigens that were originally ... gp210 is a 200kDa protein involved in anchoring components of the nuclear pore to the nuclear membrane. The p62 antigen is a ... known as extractable nuclear antigens (ENAs). This led to the characterisation of ENA antigens and their respective antibodies ... The antigens of the anti-Sm antibodies are the core units of the small nuclear ribonucleoproteins (snRNPs), termed A to G, and ...
Duck plague
... "budd through nuclear membrane". Completed viral replication occurs within 12 hours of infection. Vacuoles of mature virions are ... be confirmed with presence of virus inclusion bodies in tissues or a positive immunohistochemical staining for viral antigen. ...
Small nuclear ribonucleoprotein polypeptide N
1989). "Isolation of cDNA clones encoding the human Sm B/B' auto-immune antigen and specifically reacting with human anti-Sm ... Small nuclear ribonucleoprotein-associated protein N is a protein that in humans is encoded by the SNRPN gene.[4][5] ... small nuclear ribonucleoprotein complex. • U2-type prespliceosome. • cell nucleus. • nucleoplasm. • U1 snRNP. • U2 snRNP. ... "Entrez Gene: SNRPN small nuclear ribonucleoprotein polypeptide N".. *^ White HE, Durston VJ, Harvey JF, Cross NC (2006). " ...
Protein
In contrast, eukaryotes make mRNA in the cell nucleus and then translocate it across the nuclear membrane into the cytoplasm, ... Antibodies are protein components of an adaptive immune system whose main function is to bind antigens, or foreign substances ... Ribbon diagram of a mouse antibody against cholera that binds a carbohydrate antigen ...
سرطان پروستات - ویکیپدیا، دانشنامهٔ آزاد
Prostate specific membrane antigen is a transmembrane carboxypeptidase and exhibits folate hydrolase activity.[75] This protein ... AR, an androgen-activated transcription factor, belongs to the steroid nuclear receptor family. Development of the prostate is ... Prostate cancer screening is controversial.[1][3] Prostate-specific antigen (PSA) testing increases cancer detection but does ... Although the widespread use of prostate-specific antigen (PSA) screening in the US has resulted in diagnosis at earlier age and ...
Interleukin 15
nuclear speck. Biological process. • negative regulation of smooth muscle cell proliferation. • cell maturation. • extrathymic ... Survival signals that maintain memory T cells in the absence of antigen are provided by IL-15. This cytokine is also implicated ... "Co-adjuvant effects of retinoic acid and IL-15 induce inflammatory immunity to dietary antigens". Nature. 471 (7337): 220-4. ... "A Novel Fusion of ALT-803 (Interleukin (IL)-15 Superagonist) with an Antibody Demonstrates Antigen-specific Antitumor ...
QMCF Technology
QMCF cell lines express Large-T antigen and EBNA-1 proteins which bind the viral sequences on the QMCF plasmid and hence ... EBNA-1 protein binding site as nuclear retention elements ensure stable propagation of plasmids in mammalian cells. In addition ...
Red blood cell
Approximately 25 of these membrane proteins carry the various blood group antigens, such as the A, B and Rh antigens, among ... In the absence of nuclear elimination, the accumulation of repeat sequences is constrained by the volume occupied by the ... Blood Groups and Red Cell Antigens *^ a b Pierigè F, Serafini S, Rossi L, Magnani M (January 2008). "Cell-based drug delivery ... Kidd antigen protein - urea transporter;. *RhAG - gas transporter, probably of carbon dioxide, defines Rh Blood Group and the ...
PCNAAntibodiesAntibodyEBNAProteinProliferating cell nuclearProteinsAutoantibodiesEBNA1Epstein-Barr VirSpecificityLatency-associated nuclear antigenCytoplasmic and nuclear antigensGeneMyeloidEBNA2RecombinantAssayExpressionChromatinProliferativeReceptorCell NuclearViralHumanCellsMembraneCellularMagnetic resonance
PCNA36
- Proliferating cell nuclear antigen (PCNA), or cyclin, is a non-histone acidic nuclear protein [ PMID: 2884104 ] that plays a key role in the control of eukaryotic DNA replication [ PMID: 1346518 ]. (ebi.ac.uk)
- Homologues of PCNA have also been identified in the archaea (known as DNA polymerase sliding clamp) [ PMID: 10542158 , PMID: 10438605 ] and in Paramecium bursaria Chlorella virus 1 (PBCV-1) and in nuclear polyhedrosis viruses. (ebi.ac.uk)
- Molecular cloning of cDNA coding for rat proliferating cell nuclear antigen (PCNA)/cyclin. (ebi.ac.uk)
- Proliferating cell nuclear antigen (PCNA) is a DNA clamp that acts as a processivity factor for DNA polymerase δ in eukaryotic cells and is essential for replication. (wikipedia.org)
- PCNA was originally identified as an antigen that is expressed in the nuclei of cells during the DNA synthesis phase of the cell cycle. (wikipedia.org)
- Antibodies against proliferating cell nuclear antigen (PCNA) or monoclonal antibody termed Ki-67 can be used for grading of different neoplasms, e.g. astrocytoma. (wikipedia.org)
- Imaging of the nuclear distribution of PCNA (via antibody labeling) can be used to distinguish between early, mid and late S phase of the cell cycle. (wikipedia.org)
- Recurrence of meningiomas versus proliferating cell nuclear antigen (PCNA) positivity and AgNOR counting. (nih.gov)
- This study attempts to correlate the silver nucleolar organizer regions (AgNORs) and proliferating cell nuclear antigen (PCNA) with clinicopathological features of biological activity. (nih.gov)
- DNA ploidy data were then compared with immunocytochemical staining for proliferating cell nuclear antigen (PCNA). (springer.com)
- Proliferating cell nuclear antigen (PCNA): ringmaster of the genome. (biomedsearch.com)
- Proliferating cell nuclear antigen (PCNA) protein is one of the central molecules responsible for decisions of life and death of the cell. (biomedsearch.com)
- The proliferating-cell nuclear antigen (PCNA) promoter function resides within a 192-bp region (-168 to +24 with respect to the transcription initiation site). (sdbonline.org)
- The regulatory region of Drosophila proliferating cell nuclear antigen (PCNA) gene consists of a promoter region (-168 to +24 with respect to the transcription initiation site) and an upstream region containing three homeodomain protein binding sites (HDB) (-357 to -165). (sdbonline.org)
- Sequences similar to the transcription factor E2F recognition site have been found within the Drosophila proliferating cell nuclear antigen (PCNA) gene promoter. (sdbonline.org)
- Recently, proliferating cell nuclear antigen (PCNA), which in mammalian cells is an auxiliary subunit of DNA polymerase delta and is essential for in vitro leading strand SV40 DNA replication, was purified from yeast. (nih.gov)
- Proliferating cell nuclear antigen (PCNA), a marker for the G1-S transition in the cell cycle and hence mitogenesis, was detected primarily in the S3 segment of the proximal tubule, with maximal expression at 2 d postischemia. (jci.org)
- Our results also indicate an association between Clock proteins and the upstream region of pcna (proliferating cellular nuclear antigen) gene. (ovid.com)
- Studies have shown that histone deacetylase 4 (HDAC4) and proliferating cell nuclear antigen (PCNA) are highly expressed in cancers. (frontiersin.org)
- The Human Anti-Proliferating Cell Nuclear Antigen (PCNA) IgG ELISA kit, 96 tests, Quantitative is manufactured for Research Use Only or for diagnostics purposes. (gentaur.com)
- Comparison of rectal mucosal proliferation measured by proliferating cell nuclear antigen (PCNA) immunohistochemistry and whole crypt dissection. (aacrjournals.org)
- Proliferating cell nuclear antigen (PCNA) immunohistochemistry has become a standard method to measure cell proliferation. (aacrjournals.org)
- Like another p53-regulated gene, p21WAF1/CIP1, whose product binds to cyclin-dependent kinases (Cdk's) and proliferating cell nuclear antigen (PCNA), GADD45 has been associated with growth suppression. (sciencemag.org)
- Proliferating cell nuclear antigen (PCNA) was originally characterised as a DNA sliding clamp for replicative DNA polymerases and as an essential component of the eukaryotic chromosomal DNA replisome. (biologists.org)
- PCNA (Proliferating Cell Nuclear Antigen) is found in the nucleus and is a cofactor of DNA polymerase delta. (creativebiomart.net)
- The purpose of this research was to evaluate the clinical significance of p16INK4A, p14ARF, p53, and proliferating cell nuclear antigen (PCNA) expression in tumor progression of cervical cancer. (aacrjournals.org)
- We have previously defined the promoter elements, sites IIa and IIb, in the rice proliferating cell nuclear antigen (PCNA) gene that are essential for meristematic tissue-specific expression. (plantcell.org)
- Proliferating cell nuclear antigen (PCNA) is a versatile protein involved in all pathways of DNA metabolism. (uiowa.edu)
- Proliferating cell nuclear antigen (PCNA) is required for completion of the DNA synthesis step of DNA replication as well as nucleotide excision repair (NER) of damaged DNA. (lu.se)
- Following normothermic ischemia, nuclear PCNA immunoreactivity was largely abolished during reperfusion in the vulnerable CA1 neurons, prior to cell death. (lu.se)
- In the CA3 region, a transient decrease in nuclear PCNA immunoreactivity was observed. (lu.se)
- In the dentate gyrus region, no down-regulation of nuclear or total PCNA protein was observed during reperfusion. (lu.se)
- Sources of variability in quantitating proliferative cell nuclear antigen (PCNA) by image analysis were evaluated in paraffin sections of 18 ovarian tumors of low malignant potential (LMP) and grade 1 (G1) carcinomas. (mysciencework.com)
- Proliferating cell nuclear antigen (PCNA) belongs to the DNA sliding clamp family. (biosensis.com)
- Human seminoma: immunohistochemical staining for proliferating cell nuclear antigen using NCL-PCNA. (leicabiosystems.com)
- Proliferating cell nuclear antigen (PCNA) is a 36 kD protein which is highly conserved between species. (leicabiosystems.com)
Antibodies23
- They gave an EBV-specific, brilliant punctate nuclear ACIF staining similar to that of the rabbit antipeptide antibodies. (pnas.org)
- Dillner J., Eliasson L., Sternås L., Kallin B., Klein G., Lerner R.A. (1985) The Use of Antibodies against Synthetic Peptides for Studying the EBV Nuclear Antigen. (springer.com)
- The presence of antibodies against extractable nuclear antigen is highly suggestive of systemic rheumatic disease. (edu.au)
- An ENA (Extractable Nuclear Antigen Antibodies) panel detects the presence of one or more specific autoantibodies in the blood. (labtestsonline.org.au)
- Certain autoimmune disorders are characteristically associated with the presence of one or more extractable nuclear antigen antibodies. (labtestsonline.org.au)
- Based on flow cytometry and various approaches, including two established murine anti-PD-1 antibody clones, CRISPR/Cas9 genome editing and confocal imaging, we describe a staining pattern assigned to a nuclear antigen cross-reacting with anti-PD-1 monoclonal antibodies. (uni-muenchen.de)
- METHODS--Cytoplasmic staining was carried out in samples from 40 cases of acute leukaemia with monoclonal antibodies against the myeloid antigen CD13, the lymphoid antigens CD3, CD22, mu chain and the enzymes terminal deoxynucleotidyl transferase (TdT) and myeloperoxidase (MPO). (bmj.com)
- Nuclear antigens (NA) that colocalize with host chromatin have been detected by antibodies to T. spiralis antigens, but the functions of these NA are unresolved. (eurekamag.com)
- Antibodies against Epstein-Barr nuclear antigen (EBNA) in multiple scl" by Patrick F. Bray, J Luka et al. (jefferson.edu)
- Antibodies against Epstein-Barr nuclear antigen (EBNA) in multiple sclerosis CSF, and two pentapeptide sequence identities between EBNA and myelin basic protein. (jefferson.edu)
- We performed three different assays for antibodies in CSF to three major EBV antigens from patients with MS and controls. (jefferson.edu)
- For CSF test requests, see Extractable Nuclear Antigen Antibodies - CSF . (calgarylabservices.com)
- Here we use an integrative genomics approach in order to localize genetic factors influencing levels of Epstein Barr virus (EBV) nuclear antigen-1 (EBNA-1) IgG antibodies, as a measure of history of infection with this pathogen, in large Mexican American families. (prolekare.cz)
- Anti-extractable nuclear antigen (ENA) antibodies were assayed by counter immunoelectrophoresis (CIE) and immunoblotting in patients with systemic lupus erythematosus (SLE). (hku.hk)
- Immunoassay reagents intended to perform qualitative and/or quantitative analyses on a body fluid sample (e.g., serum) to determine antibodies to extractable nuclear antigens (ENA). (ophthalmologymanagement.com)
- Diagnostic and clinical utility of antibodies against the nuclear body promyelocytic leukaemia and Sp100 antigens in patients with primary biliary cirrhosis. (ucl.ac.uk)
- BACKGROUND: The lack of an immunoassay that detects antibodies to promyelocytic leukaemia (PML) protein, the primary biliary cirrhosis (PBC)-specific multiple nuclear dot (MND) antigen, has prompted us to develop a line immunoassay (LIA) for the simultaneous detection of PML and Sp100 MND-specific autoantibodies. (ucl.ac.uk)
- Epstein, A.L. and Clevenger, C.V., Identification of nuclear antigens in human cells by immunofluorescence, immunoelectron microscopy, and immuno-biochemical methods using monoclonal antibodies. (neobiotechnologies.com)
- The ENA ( extractable nuclear antigen) panel is a blood test that looks for antibodies to 6 or 7 different proteins in the body. (rheuminfo.com)
- Anti-nuclear antibodies (ANA) are fundamental for the diagnosis of autoimmune diseases, and have been determined by indirect immunofluorescence assay (IIFA) for decades. (maastrichtuniversity.nl)
- ENA stands for extractable nuclear antigen antibodies. (brighthub.com)
- Antibodies in the sera of patients with systemic lupus erythematosus reacted with a nuclear acidic protein called Sm antigen, and these antibodies were used as reagents to identify Sm antigen in preparative fractionation procedures. (scripps.edu)
- These studies demonstrate that spontaneously occurring anti-nuclear antibodies in disease states may be used to study the properties of cellular proteins which are present in trace amounts. (scripps.edu)
Antibody24
- A molecule that is capable of binding to an antibody or to an antigen receptor on a T cell, especially one that induces an immune response. (thefreedictionary.com)
- Eight EBNA and EBV DNA-carrying lines showed nuclear staining with the antipeptide antibody, whereas five EBV DNA negative lines failed to stain. (pnas.org)
- For example, Scl-70 antigen is less negatively charged, which can result in the antigen traveling in the same direction as the antibody. (wikipedia.org)
- The following antibody was used in this experiment: Nuclear Antigen Monoclonal Antibody (IPO-38) from Thermo Fisher Scientific, catalog # MA1-7628, RRID AB_1077331. (thermofisher.com)
- In the current study, we report the preparation of 89 Zr-desferrioxamine B (DFO)-J591, a novel 89 Zr-labeled monoclonal antibody (mAb) construct for targeted immunoPET and quantification of prostate-specific membrane antigen (PSMA) expression in vivo. (snmjournals.org)
- In single antibody ELISAs the antigen is coated and only a detector antibody is used. (gentaur.com)
- Traditional competition antigen ELISAs are coated with a captor antibody and a competitive antigen is labelled with the chromogen. (gentaur.com)
- The IgG antibody has 2 antigen binding sites. (gentaur.com)
- This antibody can be antigen purified or protein A or G purified. (gentaur.com)
- 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. (gentaur.com)
- Recombinant rabbit monoclonal antibody raised against human Nuclear antigen. (abnova.com)
- Prior studies on patients with multiple sclerosis (MS) showed that 100% are EBV-seropositive and that their blood contains higher antibody titers than those of controls to both transformation and lytic cycle antigens. (jefferson.edu)
- A supershift assay using an anti-PCF2 antibody showed the involvement of PCF2 in site IIa (site IIb) binding activities in rice nuclear extracts, particularly in meristematic tissues. (plantcell.org)
- MBS9310485 is a ready-to-use microwell, strip plate Sandwich ELISA (enzyme-linked immunosorbent assay) Kit for analyzing the presence of the rheumatoid arthritis associated nuclear antigen (RANA) antibody, ELISA Kit target analytes in biological samples. (mybiosource.com)
- The ELISA analytical biochemical technique of the MBS9310485 kit is based on RANA antibody-RANA antigen interactions (immunosorbency) and an HRP colorimetric detection system to detect RANA antigen targets in samples. (mybiosource.com)
- For the qualitative determination of Human Rheumatoid Arthritis Associated Nuclear Antigen Antibody (Anti-RANA) in Human serum, plasma or other biological fluids. (mybiosource.com)
- Threshold settings for positive nuclear and antibody signals minimally affected the overall reliability. (mysciencework.com)
- The specificity of this antibody has been confirmed by WB and IHC against the antigen. (biosensis.com)
- Formalin-fixed, paraffin-embedded human Tonsil stained with Pan-Nuclear Antigen Monoclonal Antibody (NM106). (neobiotechnologies.com)
- Immunofluorescent staining of paraformaldehyde-fixed HeLa cells with Pan-Nuclear Antigen Monoclonal Antibody (NM106) followed by goat anti-Mouse IgG-CF488 (Green). (neobiotechnologies.com)
- SDS-PAGE Analysis Purified Pan-Nuclear Antigen Monoclonal Antibody (NM106). (neobiotechnologies.com)
- EQUIVOCAL: Presence or absence of IgG antibody to EBV Nuclear Antigen cannot be determined. (umich.edu)
- POSITIVE: Indicates detectable levels of IgG antibody to EBV Nuclear Antigen. (umich.edu)
- The ENA panel is usually ordered as a follow-up after a positive ANA (Anti-Nuclear Antibody) test in a person who has signs and symptoms of an autoimmune disease. (rheuminfo.com)
EBNA8
- The antiserum raised against a 14-residue copolymer of glycine and alanine gave brilliant EBV-specific nuclear staining in the anticomplement immunofluorescence (ACIF) assay, in line with the original definition of the EBV-determined nuclear antigen (EBNA) [Reedman, B. M. & Klein, G. (1973) Int. J. Cancer 11, 499-520]. (pnas.org)
- Several lines of evidence are compatible with the hypothesis that Epstein-Barr virus (EBV) nuclear antigen 2 (EBNA-2) or leader protein (EBNA-LP) affects expression of the EBV latent infection membrane protein LMP1. (asm.org)
- The EBNA 2 (Epstein-Barr nuclear antigen 2) transcription factor is essential for B-cell transformation by the cancer-associated EBV (Epstein-Barr virus) and for the continuous proliferation of infected cells. (biochemsoctrans.org)
- EBNA 2 activates transcription from the viral Cp (C promoter) during infection to generate the 120 kb transcript that encodes all nuclear antigens required for immortalization by EBV. (biochemsoctrans.org)
- Fluorescence polarization-based biochemical high throughput confirmation assay to identify inhibitors of the Epstein-Barr virus nuclear antigen 1 (EBNA-1). (nih.gov)
- Among 93 patients with MS, 79 (85%) had CSF that reacted with a 70 kD protein, shown to be the nuclear antigen, EBNA-1, whereas only 11 (13%) of 81 EBV-seropositive controls reacted, p less than 0.001. (jefferson.edu)
- Epstein-Barr virus nuclear antigen 1 (EBNA 1) plays a key role in the life cycle of the virus and is consistently expressed in all these tumour types. (gla.ac.uk)
- The Epstein-Barr virus (EBV) nuclear antigen EBNA-1 is essential for viral genome maintenance in vitro and may be the only EBV protein expressed by the majority of latently infected cells in vivo. (elsevier.com)
Protein16
- Identification of carrot cDNA clones encoding a second putative proliferating cell-nuclear antigen, DNA polymerase delta auxiliary protein. (ebi.ac.uk)
- Highly conserved structure of proliferating cell nuclear antigen (DNA polymerase delta auxiliary protein) gene in plants. (ebi.ac.uk)
- The recombinant rice XRCC1 (OsXRCC1) protein binds single-stranded DNA (ssDNA) as well as double-stranded DNA (dsDNA) and also interacts with rice proliferating cell nuclear antigen (OsPCNA) in a pull-down assay. (nih.gov)
- MA1-7628 detects Nuclear protein from human samples. (thermofisher.com)
- However, further comparisons revealed that only one major protein antigen (band at an approximate molecular weight of 81,000) was represented in all the assayed human tumors while being absent from human placenta or kidney. (aacrjournals.org)
- The antigenic protein with an approximate molecular weight of 81,000 was found associated with the nuclear matrix fraction. (aacrjournals.org)
- The experiments described here were undertaken to determine the mechanisms through which the EBV-encoded nuclear protein EBNA3C blocks the cell p14 ARF and p16 INK4A tumor suppressor-mediated inhibition of EBV-infected B-cell growth, thereby unfettering EBV-driven B-cell proliferation. (pnas.org)
- Epstein-Barr virus nuclear antigen 2 transactivates latent membrane protein LMP1. (asm.org)
- p21ras function is important for T cell antigen receptor and protein kinase C regulation of nuclear factor of activated T cells. (jimmunol.org)
- Proliferating cell nuclear antigen can interact with DNA polymerase epsilon on linear DNA templates, even in the absence of other auxiliary factors (replication factor C, replication protein A), and thereby stimulate its primer recognition and DNA synthesis. (uzh.ch)
- The hnRNP core protein antigens remain associated with the host chromatin, which appears to collapse into internal aggregates and along the nuclear envelope. (rupress.org)
- The Epstein-Barr Virus (EBV) Nuclear Antigen 1 (EBNA1) protein is required for the establishment of EBV latent infection in proliferating B-lymphocytes. (biomedcentral.com)
- We have investigated the structure of the small nuclear RNP (snRNP) U1 by combining EM of complete and partially protein-deficient particles with immunoelectron microscopy employing mAbs against known components of the U1 snRNP. (rupress.org)
- Most investigations in B cells have focused on the role of genes whose function are important for B-cell antigen receptor (BCR)-induced protein synthesis and increased cell size. (bloodjournal.org)
- Which was generated against aconcentrated nuclear protein extract prepared from late stage human myeloid leukaemia HL-60 cells. (blogspot.com)
- DNA affinity chromatography showed that Sm antigen was associated with nuclear protein fractions which had DNA-binding capacity. (scripps.edu)
Proliferating cell nuclear1
- PCF1 and PCF2 specifically bind to cis elements in the rice proliferating cell nuclear antigen gene. (plantcell.org)
Proteins4
- An extractable nuclear antigen panel, or an ENA Panel, tests for presence of autoantibodies in the blood that react with proteins in the cell nucleus. (wikipedia.org)
- Immunochemical staining of electrophoretically separated chromosomal proteins transferred to nitrocellulose sheets revealed numerous antigens in chromatin preparations from several human tumors, placenta, and normal kidney. (aacrjournals.org)
- In NPC, EBV infection has type II latency mechanism [ 6 ], which is featured by several noncoding RNAs, latent membrane proteins (LMP1, LMP2A, and LMP2B), and Epstein-Barr nuclear antigen 1 (EBNA1) [ 7 ]. (hindawi.com)
- The U.S. Food and Drug Administration allowed marketing of a rapid diagnostic test (RDT) to detect Ebola virus antigens (proteins) in human blood from certain living individuals and samples from certain recently deceased individuals suspected to have died from Ebola (cadaveric oral fluid). (hstoday.us)
Autoantibodies3
- Autoantibodies to these antigens are associated with particular connective tissue disorders. (wikipedia.org)
- The diagnosis of autoimmune connective tissue diseases (CTDs) is done through analysis of clinical symptoms and signs, but also through the identification of the autoantibodies directed against nuclear antigens. (wikipedia.org)
- This is a qualitative assay for sreening and identification of specific IgG autoantibodies against Extractable Nuclear Antigens in human serum. (lalpathlabs.com)
EBNA12
- Epstein-Barr virus (EBV) nuclear antigen 1 (EBNA1) is the one EBV antigen that is expressed in all EBV associated malignancies. (abcam.com)
- Background: Epstein-barr virus nuclear antigen 1 (EBNA1) plays a crucial role in Nasopharyngeal carcinoma (NPC), the most common cancer of head and neck cancer in Asian countries with high incidents. (sid.ir)
Epstein-Barr Vir3
- Epstein-Barr Virus Nuclear Antigens" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (harvard.edu)
- This graph shows the total number of publications written about "Epstein-Barr Virus Nuclear Antigens" by people in Harvard Catalyst Profiles by year, and whether "Epstein-Barr Virus Nuclear Antigens" was a major or minor topic of these publication. (harvard.edu)
- Below are the most recent publications written about "Epstein-Barr Virus Nuclear Antigens" by people in Profiles. (harvard.edu)
Specificity2
- A binding factor(s) to these sequences with similar binding specificity to that of E2F has been detected in nuclear extracts of Drosophila Kc cells. (sdbonline.org)
- These alternative platforms differ in their antigen profiles, sensitivity and specificity, raising uncertainties regarding standardisation and interpretation of incongruent results. (maastrichtuniversity.nl)
Latency-associated nuclear antigen1
- The latency-associated nuclear antigen (LANA) has been shown to tether viral DNA fragments to chromosomes and is proposed to maintain the KSHV genome. (microbiologyresearch.org)
Cytoplasmic and nuclear antigens3
- Extractable Nuclear Antigens (ENAs) are over 100 different soluble cytoplasmic and nuclear antigens. (wikipedia.org)
- Demonstration of cytoplasmic and nuclear antigens in acute leukaemia using flow cytometry. (bmj.com)
- AIMS--To detect cytoplasmic and nuclear antigens using flow cytometry in acute leukaemia and to use this technique for double marker combinations. (bmj.com)
Gene2
- Structure of the human gene for the proliferating cell nuclear antigen. (ebi.ac.uk)
- 4 , 5 It is recognized, however, that antigen receptor-triggered macromolecular synthesis and gene expression places enormous bioenergetic demands on lymphocytes. (bloodjournal.org)
Myeloid6
- The myeloid cell nuclear differentiation antigen (MNDA) is detected only in nuclei of cells of the granulocyte-monocyte lineage. (nih.gov)
- Value of Quantitative assessment of Myeloid Nuclear Differentiation Antigen expression and other flow cytometric parameters in the diagnosis of Myelodysplastic syndrome. (nih.gov)
- Flow cytometry in the diagnosis of myelodysplastic syndromes and the value of myeloid nuclear differentiation antigen. (nih.gov)
- Myeloid cell nuclear differentiation antigen is expressed in a subset of marginal zone lymphomas and is useful in the differential diagnosis with follicular lymphoma. (nih.gov)
- Purification, characterization and docking studies of the HIN domain of human myeloid nuclear differentiation antigen (MNDA). (nih.gov)
- Significance of myeloid antigen expression in precursor T lymphoblastic lymphoma. (nih.gov)
EBNA22
- This study reports the novel finding that the EBV nuclear antigen 2 (EBNA2), a second major effector of phenotypic change m EBV-infected cells, can independently upregulate bfl-1 mRNA levels m BL cell lines. (dcu.ie)
- Epstein-Barr virus (EBV) nuclear antigens EBNALP (LP) and EBNA2 (E2) are coexpressed in EBV-infected B lymphocytes and are critical for lymphoblastoid cell line outgrowth. (nus.edu.sg)
Recombinant2
- Antigens are peptides or recombinant or native dependent on the production method. (gentaur.com)
- Recombinant human Proliferating Cell Nuclear Antigen, was expressed in E.coli and purified by conventional chromatography techniques. (creativebiomart.net)
Assay1
- The antisera raised against peptide no. 107, a copolymer of alanine and glycine deduced from the third internal repeat (IR3) sequence, gave brilliant nuclear staining in the anticomplement immunof1ourescence assay (AC IF) on eight EBV-carrying lines (Figure 1a),whereas five EBV-negative lines were not stained (Table 2). (springer.com)
Expression4
- Comparison of Proliferating Cell Nuclear Antigen Expression in Odontogenic Keratocyst and Ameloblastoma: An Immunohistochemical Study," Analytical Cellular Pathology , vol. 16, no. 4, pp. 185-192, 1998. (hindawi.com)
- Due to the special viral antigen expression, NPC has become an attractive target for clinical therapies. (hindawi.com)
- RRV- and MneRV2-infected foci showed strong nuclear expression of ORF59 that correlated with production of infectious progeny virus. (biomedcentral.com)
- Immunohistochemical studies of an MneRV2-infected macaque revealed strong nuclear expression of ORF59 in infected cells within the differentiating layer of epidermis corroborating previous observations that differentiated epithelial cells are permissive for replication of KSHV-like rhadinoviruses. (biomedcentral.com)
Chromatin3
- Free in the nucleoplasm, somewhat associated with the chromatin and hardly, if at all associated with the nuclear matrix. (abcam.com)
- While immunoabsorption of the antisera with placenta chromatin removed some of the immunochemical staining, many of the electrophoretically separated antigens resisted repeated immunoabsorptions. (aacrjournals.org)
- Fractionation of HeLa cells into three cytoplasmic and several nuclear fractions showed that almost all the antigens recognized by antisera to dehistonized chromatin were nuclear. (aacrjournals.org)
Proliferative2
- Reliability of quantitating proliferative cell nuclear antigen. (mysciencework.com)
- Schiff WM, Hwang JC, Ober MD, Olson JL, Dhrami-Gavazi E, Barile GR, Chang S, Mandava N. Safety and efficacy assessment of chimeric ribozyme to proliferating cell nuclear antigen to prevent recurrence of proliferative vitreoretinopathy. (ucdenver.edu)
Receptor1
- We find that B lymphocytes rapidly increase glucose uptake and glycolysis following B-cell antigen receptor (BCR) crosslinking. (bloodjournal.org)
Cell Nuclear11
- Functional interactions of a homolog of proliferating cell nuclear antigen with DNA polymerases in Archaea. (ebi.ac.uk)
- Localization of proliferating cell nuclear antigen, vimentin, c-Fos, and clusterin in the postischemic kidney. (jci.org)
- Dual mode of interaction of DNA polymerase epsilon with proliferating cell nuclear antigen in primer binding and DNA synthesis. (uzh.ch)
- Using four characterized mutants of proliferating cell nuclear antigen containing three or four alanine residue substitutions on the C-terminal side and the back side of the trimer, we have tested the kinetics of primer binding and nucleotide incorporation by DNA polymerase epsilon in different assays. (uzh.ch)
- In contrast with what has been found in interaction studies between DNA polymerase delta and proliferating cell nuclear antigen, our data suggested that stimulation of DNA polymerase epsilon primer binding involves interactions with both the C-terminal side and the back side of proliferating cell nuclear antigen. (uzh.ch)
- The significance of this dual interaction is discussed with reference to the physiological roles of DNA polymerase epsilon and its interaction with the clamp proliferating cell nuclear antigen. (uzh.ch)
- Proliferating Cell Nuclear Antigen" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (ucdenver.edu)
- This graph shows the total number of publications written about "Proliferating Cell Nuclear Antigen" by people in this website by year, and whether "Proliferating Cell Nuclear Antigen" was a major or minor topic of these publications. (ucdenver.edu)
- Below are the most recent publications written about "Proliferating Cell Nuclear Antigen" by people in Profiles. (ucdenver.edu)
- Pluciennik A, Burdett V, Baitinger C, Iyer RR, Shi K, Modrich P. Extrahelical (CAG)/(CTG) triplet repeat elements support proliferating cell nuclear antigen loading and MutLa endonuclease activation. (jefferson.edu)
- Iyer RR, Pluciennik A, Genschel J, Tsai MS, Beese LS, Modrich P. MutLalpha and proliferating cell nuclear antigen share binding sites on MutSbeta. (jefferson.edu)
Viral1
- Nuclear antigens encoded by VIRAL GENES found in HUMAN HERPESVIRUS 4. (harvard.edu)
Human5
- Kayamba V, Monze M, Asombang AW, Zyambo K, Kelly P. Serological response to Epstein-Barr virus early antigen is associated with gastric cancer and human immunodeficiency virus infection in Zambian adults: a case-control study. (harvard.edu)
- Epstein-Barr virus nuclear antigen 3C (EBNA3C) repression of CDKN2A p14 ARF and p16 INK4A is essential for immortal human B-lymphoblastoid cell line (LCL) growth. (pnas.org)
- MAb 235-1 recognizes an antigen associated with the nuclei in human cells. (biotium.com)
- Genome-wide evidence of both significant linkage and association was obtained on chromosome 6 in the human leukocyte antigen (HLA) region and replicated in an independent Mexican American sample of large families (minimum p -value in combined analysis of both datasets is 1.4×10 −15 for SNPs rs477515 and rs2516049). (prolekare.cz)
- Infection of human epidermoid carcinoma No. 2 cells with herpes simplex virus type 1 (HSV-1) leads to a reorganization of antigens associated with both the small and heterogeneous nuclear ribonucleoprotein complexes (snRNP and hnRNP). (rupress.org)
Cells6
- To address these questions, a model Ag, hen egg lysozyme, was targeted to various subcellular compartments of mouse sarcoma cells, and the resulting cells were tested for presentation of three lysozyme epitopes in vitro and for presentation of nuclear Ag in vivo. (jimmunol.org)
- In vivo studies demonstrate that class II + tumor cells, and not host-derived cells, are the predominant APC for class II-restricted nuclear Ags. (jimmunol.org)
- In Astatotilapia burtoni, the fish retina increases by adding new retinal cells at the ciliary marginal zone (CMZ) and in the outer nuclear layer (ONL). (ovid.com)
- RESULTS--The gentle permeabilisation induced by this method permitted preservation of the membrane antigens and the size and morphology of the cells. (bmj.com)
- Concomitant depletion of NA from infected cell nuclei suggests a role of these products in regulating nuclear functions of host cells. (eurekamag.com)
- Note nuclear staining of proliferating tumor cells. (leicabiosystems.com)
Membrane5
- Role of 68Ga-Prostate-Specific Membrane Antigen PET/CT in Di. (lww.com)
- 68 Ga-prostate-specific membrane antigen PET/CT is a known molecular imaging marker in prostate cancer. (lww.com)
- After surgery, 68 Ga-prostate-specific membrane antigen PET/CT showed residual disease along the posterior and inferior margin of the postoperative cavity. (lww.com)
- Prostate-specific membrane antigen (PSMA) is a 100-kDa, type II transmembrane glycoprotein and is one of the best characterized oncogenic markers or targets ( 2 , 3 ). (snmjournals.org)
- CONCLUSIONS--This technique is simple, rapid, sensitive and reproducible and it is suitable for double staining procedures, such as nuclear and cytoplasmic, nuclear and membrane, or cytoplasmic and membrane. (bmj.com)
Cellular1
- 5 , 6 Therefore, one of the fundamental aspects of B-cell responses to antigen challenge that may be critical in vivo is the provision of metabolic substrates to provide ATP and anabolic precursors for cellular growth. (bloodjournal.org)
Magnetic resonance2
- Structural determination of the sialic acid polysaccharide antigens of Neisseria meningitidis serogroups B and C with carbon 13 nuclear magnetic resonance. (semanticscholar.org)
- The application of 13-C nuclear magnetic resonance to the analysis of some sialic acid-containing meningococcal polysaccharide antigens is described. (semanticscholar.org)