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.)
Mushroom worker's lung resulting from indoor cultivation of Pleurotus osteatus. (1/1360)
Indoor cultivation of oyster mushroom Pleurotus osteatus lead to an outbreak of extrinsic allergic alveolitis in two workers. High titer of indirect fluorescent antibody and positive precipitins against basidiospores of P. osteatus were demonstrated in sera of the patients. Mushroom workers should protect themselves from the basidiospores, being aware of their pathogenicity. (+info)Variants of a Cryptococcus neoformans strain elicit different inflammatory responses in mice. (2/1360)
The virulence of Cryptococcus neoformans isolates with high and low extracellular proteolytic activity was investigated in mice. No consistent relationship between proteolytic activity and virulence was observed, but isolates derived from one strain were shown to elicit different inflammatory responses. (+info)Detection of cell wall mannoprotein Mp1p in culture supernatants of Penicillium marneffei and in sera of penicilliosis patients. (3/1360)
Mannoproteins are important and abundant structural components of fungal cell walls. The MP1 gene encodes a cell wall mannoprotein of the pathogenic fungus Penicillium marneffei. In the present study, we show that Mp1p is secreted into the cell culture supernatant at a level that can be detected by Western blotting. A sensitive enzyme-linked immunosorbent assay (ELISA) developed with antibodies against Mp1p was capable of detecting this protein from the cell culture supernatant of P. marneffei at 10(4) cells/ml. The anti-Mp1p antibody is specific since it fails to react with any protein-form lysates of Candida albicans, Histoplasma capsulatum, or Cryptococcus neoformans by Western blotting. In addition, this Mp1p antigen-based ELISA is also specific for P. marneffei since the cell culture supernatants of the other three fungi gave negative results. Finally, a clinical evaluation of sera from penicilliosis patients indicates that 17 of 26 (65%) patients are Mp1p antigen test positive. Furthermore, a Mp1p antibody test was performed with these serum specimens. The combined antibody and antigen tests for P. marneffei carry a sensitive of 88% (23 of 26), with a positive predictive value of 100% and a negative predictive value of 96%. The specificities of the tests are high since none of the 85 control sera was positive by either test. (+info)Aspergillus meningitis: diagnosis by non-culture-based microbiological methods and management. (4/1360)
The performance of antibody detection, antigen detection, and Aspergillus genus-specific PCR for diagnosing Aspergillus meningitis was investigated with 26 cerebrospinal fluid (CSF) samples obtained from a single patient with proven infection caused by Aspergillus fumigatus. Immunoglobulin G antibodies directed against Aspergillus were not detected by enzyme-linked immunosorbent assay in CSF or serum. The antigen galactomannan was detected in the CSF 45 days before a culture became positive, and Aspergillus DNA was detected 4 days prior to culture. Decline of the galactomannan antigen titer in the CSF during treatment with intravenous and intraventricular amphotericin B and intravenous voriconazole corresponded with the clinical response to treatment. (+info)Production of specific monoclonal antibodies to Aspergillus species and their use in immunohistochemical identification of aspergillosis. (5/1360)
Two anti-Aspergillus murine monoclonal antibodies (MAbs), designated 164G and 611F, have been produced; both specifically recognize cytoplasmic antigens of A. fumigatus, A. flavus, and A. niger by enzyme-linked immunosorbent assay. The MAbs can identify Aspergillus spp. both in frozen sections by immunofluorescence and in paraffin-embedded clinical specimens by immunofluorescence and immunoperoxidase staining. (+info)Molecular cloning, characterization, and expression of the M antigen of Histoplasma capsulatum. (6/1360)
The major diagnostic antigens of Histoplasma capsulatum are the H and M antigens, pluripotent glycoproteins that elicit both humoral and T-cell-mediated immune responses. These antigens may play a role in the pathogenesis of histoplasmosis. M antigen is considered immunodominant because antibodies against it are the first precipitins to arise in acute histoplasmosis and are commonly present during all phases of infection. The biological activity of monomolecular M antigen and its ability to elicit a protective immune response to H. capsulatum are largely unknown. A molecular approach was used to identify the biological nature of M antigen, including its purification from histoplasmin, partial digestion with proteinases, and reverse-phase high-performance liquid chromatography to separate the released peptides. The amino acid sequences of the purified peptides were obtained by Edman degradation, and using degenerate oligonucleotide primers for PCR, a 321-bp fragment of the gene encoding the M antigen was amplified from genomic H. capsulatum DNA. This fragment was used to screen an H. capsulatum genomic DNA library, leading to the isolation, cloning, and sequencing of the full-length gene. The M gene consists of 2, 187-bp DNA encoding a protein of 80,719 Da, which has significant homology to catalases from Aspergillus fumigatus, Aspergillus niger, and Eimericella nidulans. A cDNA was generated by reverse transcription-PCR and cloned into the expression vector pQE40. The identity of the cloned, expressed protein was confirmed by Western blotting. The recombinant fusion protein was immunoreactive with monoclonal antibodies raised against M antigen, with polyclonal mouse anti-M antiserum, and with a serum sample from a patient with histoplasmosis. The gene encoding the major immunodominant M antigen of H. capsulatum is a presumptive catalase, and the recombinant protein retains serodiagnostic activity. (+info)Two-dimensional electrophoresis of Malassezia allergens for atopic dermatitis and isolation of Mal f 4 homologs with mitochondrial malate dehydrogenase. (7/1360)
The yeast Malassezia furfur is a natural inhabitant of the human skin microflora that induces an allergic reaction in atopic dermatitis. To identify allergens of M. furfur, we separated a crude preparation of M. furfur antigens as discrete spots by 2-D PAGE and detected IgE-binding proteins using sera of atopic dermatitis patients. We identified the known allergens, Mal f 2 and Mal f 3, and determined N-terminal amino acid sequences of six new IgE-binding proteins including Mal f 4. The cDNA and genomic DNA encoding Mal f 4 were cloned and sequenced. The gene was mitochondrial malate dehydrogenase and encoded Mal f 4 composed of 315 amino acids and a signal sequence of 27 amino acids. We purified Mal f 4, which had a molecular mass of 35 kDa from a membrane fraction of a lysate of cultured cells. Thirty of 36 M. furfur-allergic atopic dermatitis patients (83.3%) had elevated serum levels of IgE to purified Mal f 4, indicating that Mal f 4 is a major allergen. There was a significant correlation of the Phadebas RAST unit values of Mal f 4 and the crude antigen, but not between Mal f 4 and the known allergen Mal f 2. (+info)Heat shock protein 70 (hsp70) as a major target of the antibody response in patients with pulmonary cryptococcosis. (8/1360)
Cryptococcus neoformans causes infection in individuals with defective T cell function, such as AIDS, as well as without underlying disease. It has been suggested that humoral as well as cellular immunity might play an important role in the immune response to C. neoformans infection. We have recently shown, using immunoblotting, that the 70-kD hsp family of C. neoformans was the major target molecule of the humoral response in murine pulmonary cryptococcosis. In this study we also used immunoblotting to define the antibody responses in the sera of 24 patients with pulmonary cryptococcosis: 21 proven and three suspected diagnoses. Anti-C. neoformans hsp70 antibody was detected in 16 of 24 (66.7%) patients with pulmonary cryptococcosis. Fourteen of 17 (82.3%) patients with high antigen titres (> or = 1:8) and two of seven (28.6%) patients with low titres (< or = 1:4) had detectable levels of anti-hsp70 antibody. Sera from patients positive for anti-hsp70 antibody showed high titres in the Eiken latex agglutination test for the detection of serum cryptococcal antigen. Our results indicate that the 70-kD hsp family from C. neoformans appears to be a major target molecule of the humoral response, not only in murine pulmonary cryptococcosis, but also in human patients with pulmonary cryptococcosis. (+info)
Effect of Differential N-linked and O-linked Mannosylation on Recognition of Fungal Antigens by Dendritic Cells
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Lyme Cryme: How it all Went Down
OspA is a toxic, fungal-type (TLR2/1 agonist) antigen that causes sepsis and subsequent post-sepsis immunosuppression in 85% of ... Vaccine efficacy is never assessed with the very same antigen as the vaccine antigen. Otherwise, it would not be known if the ... Once LYMErix was on the market, a strain of borrelia that did not have the vaccine antigens in it would have to be used. ... Dave Persing (Mayo) owns a patent (6,045,804) for testing based on Steeres research in which the OspA-B antigens were left out ...
Lyme Cryme: How it all Went Down
OspA is a toxic, fungal-type (TLR2/1 agonist) antigen that causes sepsis and subsequent post-sepsis immunosuppression in 85% of ... Vaccine efficacy is never assessed with the very same antigen as the vaccine antigen. Otherwise, it would not be known if the ... Once LYMErix was on the market, a strain of borrelia that did not have the vaccine antigens in it would have to be used. ... Dave Persing (Mayo) owns a patent (6,045,804) for testing based on Steeres research in which the OspA-B antigens were left out ...
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ICVS
T cell vaccination overcomes defective cross-presentation of fungal antigens in a mouse model of chronic granulomatous disease ... Keywords: Fungal Disease ▪ Host Genetics ▪ Immunity ▪ Host-Pathogen Interaction ▪ Stem-Cell Transplantation ▪ Personalized ... These aims are being addressed in the lab by resorting to advanced cellular and animal models of fungal infection and by ... His PhD work focussed on interpreting the contribution of genetic variation in innate immunity to susceptibility to fungal ...
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If it was known that borreliosis and other fungal-antigen-laden tick-borne infections were mostly antibody-negative, everyone ... Tags: AIDS, antigens, Bioweapons, CDC, charge sheets, dearborn, FDA, Lyme, Lyme disease, LYMErix, OspA ... You never test for a disease with the same antigens as the vaccine. If 85% of cases could no longer be detected, the vaccine ... Unfortunately, OspA is the very antigen that is responsible for the AIDS-like illness in 85% of its victims. But, no worries: ...
Help Wanted: Lyme - AIDS 2.0
If it was known that borreliosis and other fungal-antigen-laden tick-borne infections were mostly antibody-negative, everyone ... Tags: AIDS, antigens, Bioweapons, CDC, charge sheets, dearborn, FDA, Lyme, Lyme disease, LYMErix, OspA ... You never test for a disease with the same antigens as the vaccine. If 85% of cases could no longer be detected, the vaccine ... Unfortunately, OspA is the very antigen that is responsible for the AIDS-like illness in 85% of its victims. But, no worries: ...
Help Wanted: Lyme - AIDS 2.0
If it was known that borreliosis and other fungal-antigen-laden tick-borne infections were mostly antibody-negative, everyone ... Tags: AIDS, antigens, Bioweapons, CDC, charge sheets, dearborn, FDA, Lyme, Lyme disease, LYMErix, OspA ... You never test for a disease with the same antigens as the vaccine. If 85% of cases could no longer be detected, the vaccine ... Unfortunately, OspA is the very antigen that is responsible for the AIDS-like illness in 85% of its victims. But, no worries: ...
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'Chronic Lyme is post-sepsis syndrome' ? - LymeNet...
Burden of fungal infection in Argentina, Australia, Belgium, Mexico, Saudi Arabia & Tanzania presented at ICAAC - Gaffi | Gaffi...
... burdens of serious fungal disease has been estimated, for 260 ... cases of cryptococcal meningitis based on cryptococcal antigen ... ICCAC 2014 - Burden of serious fungal infections in Tanzania. View Posters:Argentina, Australia, Belgium;Mexico Saudi Arabia, ... Burden of fungal infection in Argentina, Australia, Belgium, Mexico, Saudi Arabia & Tanzania presented at ICAAC. Posted ... ICCAC 2014 - Burden of fungal disease in Tanzania and Mexico. Rates of ABPA were calculated at 2.5% of the adult clinical ...
Detection kits for invasive fungal disease
Manufacture kits for Invasive Fungal Disease diagnosis, kits of 1-3-β-D Glucan Assay, Aspergillus Galactomannan Elisa Assay, ... blood collection tubes.Plus cryptococcal antigen, Aspergillus Galactomannan Detection K-set, Candida Mannan IgG/IgM Antibody ... Manufacture kits for Invasive Fungal Disease diagnosis, kits of 1-3-β-D Glucan Assay, Aspergillus Galactomannan Elisa Assay, ...
Vaccine that harnesses antifungal immunity protects mice from staph infection - Get Fit Winnipeg
... and we are excited to share our recent experiences with antigen-loaded fungal particles." ... The researchers developed a new vaccine called 4X-SA-GP, which consists of fungal ?-glucan particles loaded with four S. aureus ... Immunization of mice with a new vaccine consisting of fungal particles loaded with Staphylococcus aureus (S. aureus) proteins ... and they are also at increased risk of developing fungal infections. Based on this evidence, Underhill and colleagues tested ...
No Nut November - Scarlet Magazine
Fungi in the gut prime immunity against infection | CCHub
Breakdowns in this process can leave people susceptible to deadly fungal infections. The study, published Feb. 5 in Cell, ... major causes of fungal disease in immunosuppressed patients and the elderly.Common fungi, often present in the gut, teach the ... Instead, the animals immune cells appeared to transport fungal antigens to the spleen, stimulating the production of ... In patients with suppressed immunity, the anti-fungal antibodies may decline, leaving them vulnerable to fungal infection. New ...
How Long Does A Yeast Infection Last? | epicuriousmorsels.com
To reduce the risk of fungal infections: However, if you have never had such an infection, you may be mistaken about what it is ... Candida antigens and anti-candida antibody detection, take high quality probiotic supplements, including beneficial yeast ... if your vaginal fungal infection comes back within 2 months, this could be a sign of pregnancy, diabetes, or even HIV/AIDS. The ...
Men's Health
Cryptococcal Immune Reconstitution Inflammatory Syndrome: An Unusual Presentation on the Tongue | Actas Dermo-Sifiliográficas
In addition to the serum cryptococcal antigen latex agglutination test, which was positive, the results of other laboratory ... which revealed a nonnecrotizing granuloma comprising giant cells that phagocytosed round fungal structures, which were shown to ... together with the inability to remove foreign antigens, the process is followed by immune restoration leading to a cytokine ... and demonstration of capsular antigen in the supernatant of fluids, including serum and cerebrospinal fluid, by latex ...
The HLA-DR Gene and Mold Sensitivity - Mold Blogger
... such as an anti-fungal diet or an anti-fungal supplement routine, in addition to detoxing exercise and adequate sleep. ... When an antigen is presented correctly to a T-cell receptor, for example, the appropriate immune response is given and foreign ... Fungal triggers of the HLA-DR are often the most devastating to health. Over 36 different diseases can result from an HLA-DR ... The Human Leukocyte Antigen is a protein-or marker-that is found on most cells in your body. Your immune system uses these ...
InfectionsInfectionAntibodiesFungiInvasiveAntibodySerumAspergillusAspergillosisGalactomannanImmunoassays for quantificationHistoplasmosisDetection of Fungal AntigensPathogensAssaysHistoplasmaHypersensitivityAbstractSolublePurification and DetectionCell Wall AntigensSubstancePulmonaryArea of fungalAntifungalBlastomycosisELISACandida AntigenDiagnosticsCryptococcusAssayMycosesAnti-fungal therapyDiseasesOpportunistic fungalReactivityCytotoxic T LymphocytPathogenUrinePeptidesDiagnosticSensitivityPatientsClinicalRespiratory tractImmune responseColonization
Infections49
- So fungal antigens test can be used in early diagnosis of deep candida infections. (selfgrowth.com)
- It is meaningful to early diagnosis of deep fungal infections for the fungal antigens test can get continuous monitoring of high-risk patients. (selfgrowth.com)
- The antigen detected in these infections is identical. (miravistalabs.com)
- However, as there is an obvious and urgent need for novel approaches to treat infectious diseases, RIT can provide us with a powerful approach to combat serious diseases, including invasive fungal infections. (elsevier.com)
- The diagnosis of fungal infections of the respiratory tract is often difficult and may require invasive diagnostic procedures. (elsevier.com)
- We review current techniques used for the detection of fungal antigens, including their sensitivity and specificity, and their use in diagnosing human infections. (elsevier.com)
- Opportunistic fungal infections are major causes of morbidity and mortality in patients with single or multiple defects in their immunity. (frontiersin.org)
- Antifungal agents targeting the pathogen remain the treatment of choice for fungal infections. (frontiersin.org)
- In this regard, immunomodulating therapeutic agents that turn up the immune response in the fight against fungal infections hold promise for enhancing the efficacy and safety of conventional antifungal therapy. (frontiersin.org)
- In this review, therefore, clinical evidences supporting the opportunities and challenges of immunomodulation therapies in the treatment of invasive fungal infections are included. (frontiersin.org)
- Antifungal agents targeting the pathogen such as polyenes, azoles, flucytosine, and echinocandins are the treatment of choice for most fungal infections. (frontiersin.org)
- The lower burden of fungal infections in people with intact immune response has been taken as strong evidence that normal immunity mediates effective resistance to fungal infections ( Casadevall and Pirofski, 2001 ). (frontiersin.org)
- As mentioned below and summarized in Table 1 , several immunomodulating approaches have been clinically tested for the treatment of fungal infections. (frontiersin.org)
- Clinical benefits and challenges of immunomodulating agents used in patients with fungal infections. (frontiersin.org)
- Invasive fungal infections (IFIs) are serious and often life-threatening complications in patients with haematological malignancies. (openmicrobiologyjournal.com)
- The diagnosis of invasive fungal infections (IFIs) is a problem due to the absence of significant signs and symptoms and because of the lack of specificity of the available non-invasive diagnostic tools. (openmicrobiologyjournal.com)
- It is often difficult to diagnose systemic fungal infections. (infoplease.com)
- Because so many systemic fungal infections go undetected and untreated, antifungal therapy has mixed success. (infoplease.com)
- Superficial infections These fungal infections affect the skin or mucous membranes. (infoplease.com)
- Superficial fungal infections (e.g., yeast vaginitis, oral thrush, and athletes foot) affect millions of people worldwide. (infoplease.com)
- Most superficial fungal infections are easily diagnosed and can be treated effectively. (infoplease.com)
- Systemic fungal infections may be caused either by an opportunistic organism that attacks a person with a weakened immune system, or by an invasive organism that is common in a specific geographic area, such as cocci and histoplasma. (infoplease.com)
- Unlike superficial infections, systemic fungal infections can be life-threatening. (infoplease.com)
- Several kinds of fungal infections are described in the following sections. (infoplease.com)
- Fungal meningitis, an infection that causes inflammation of the membranes covering the brain and spinal cord, is one of the most common life-threatening opportunistic infections of HIV patients. (infoplease.com)
- Infections in people are acquired by inhalation of small fungal cells spread on air currents. (infoplease.com)
- Effective serodiagnosis of systemic fungal infections is of increasing importance, particularly with regard to the identification of infection with Histoplasma capsulatum, Paracoccidioides brasiliensis and Penicillium marneffei. (nih.gov)
- which are also fungal agents of deadly infections. (frontiersin.org)
- Many yeast infections get better after a few days or weeks of treatment, but certain fungal infections may need to be treated for several months or longer before they clear up. (medlineplus.gov)
- To study the effectiveness, safety, and tolerance of fluconazole versus clotrimazole troches (lozenges) as prophylaxis (preventive treatment) against fungal infections in patients enrolled in ACTG 081 (a study of prophylaxis against pneumocystosis, toxoplasmosis, and serious bacterial infection). (clinicaltrials.gov)
- To compare the mortality rates due to fungal infections between two antifungal prophylactic treatments. (clinicaltrials.gov)
- Secondarily, to assess the effect of prophylaxis on the incidence of severe fungal infections, defined as invasive infections and esophageal candidiasis and less severe mucocutaneous infection. (clinicaltrials.gov)
- Serious fungal infections are significant complicating and life-threatening occurrences in patients with advanced HIV infection. (clinicaltrials.gov)
- Once established, fungal infections in AIDS patients generally require continuous suppressive therapy because attempts at curing these infections are usually unsuccessful. (clinicaltrials.gov)
- Solid organ transplant (SOT) and hematopoietic stem cell transplant (HSCT) recipients are vulnerable to a wide variety of infections: bacterial, fungal, viral or parasitic. (renalandurologynews.com)
- See also Overview of Fungal Infections . (merckmanuals.com)
- Fungal infections are emerging as a major problem in part due to high mortality associated with systemic infections, especially in the case of immunocompromised patients. (scielo.br)
- With the development of new treatments for diseases such as cancer and the acquired immune deficiency syndrome pandemic, the number of immunosuppressed patients has increased and, as a consequence, also the number of invasive fungal infections has increased. (scielo.br)
- However, there are still many challenges that prevent the clinical development of fungal vaccines that can efficiently immunise subjects at risk of developing invasive fungal infections. (scielo.br)
- This review will cover how the immune system works against fungal infections, the importance of the development of new strategies, the efforts made and challenges that still need to be solved for the advance in this area of fungal vaccines. (scielo.br)
- These cytokines promote the maturation of certain effector T-cells, which aid in the immune response to fungal infections. (news-medical.net)
- Patients with histoplasmosis or other invasive fungal infections may present with disseminated, rather than localized, disease. (prnewswire.com)
- Specimens from patients with blastomycosis or other fungal infections were tested. (asm.org)
- She is an elected member of the American Society for Clinical Investigators (ASCI) and is known worldwide for her translational and clinical research focused on diagnostics and treatment of invasive fungal infections. (hopkinsmedicine.org)
- Her research has led to establishment of a JHU start-up company, MycoMed Technologies, focused on development of devices and drugs to enable strategies to prevent fungal infections in medically immunosuppressed people. (hopkinsmedicine.org)
- Marr, K.A. Fungal infections in oncology patients: update on epidemiology, prevention, and treatment. (hopkinsmedicine.org)
- Can ADD medications like Adderall exacerbate fungal infections? (drugs.com)
- I have read studies which indicate Amphetamines cause fungal infections in rats and yeast infections in Women. (drugs.com)
- Empiric anti-fungal therapy should be considered in patients at risk for invasive fungal infections who develop severe systemic illness. (businesswire.com)
Infection27
- Test fungal bacterial components and fungal antigens, which is a significant ways to diagnose fungal infection in modern clinics. (selfgrowth.com)
- Aspergillus fumigatus is a model fungal pathogen and a common cause of infection in individuals with the primary immunodeficiency chronic granulomatous disease (CGD). (pasteur.fr)
- Invasive pulmonary aspergillosis (IPA) is an opportunistic fungal infection in patients undergoing chemotherapy for hematological malignancy, hematopoietic stem cell transplant, or other forms of immunosuppression. (nih.gov)
- Fungal foot infection, cellulitis and diabetes: a review. (medscape.com)
- A common fungal infection. (meds.com)
- Paracoccidioidomycosis (PCM) is an important systemic fungal disease, particularly among individuals living and working in rural areas of endemicity in Latin America, who, without antifungal therapy, may develop fatal acute or chronic infection. (asm.org)
- The infection usually starts via the respiratory route except for sporotrichosis that rarely occurs by inhalation of fungal propagules, rather arising from surface injuries by fungus-contaminated objects or cat scratches ( 1 ). (frontiersin.org)
- Randomized Comparative Study of Fluconazole Versus Clotrimazole Troches in the Prevention of Serious Fungal Infection in Patients With AIDS or Advanced AIDS-Related Complex. (clinicaltrials.gov)
- Eosinophils release their proinflammatory and cytotoxic granule proteins, and various chemokines in response to a fungal infection. (news-medical.net)
- Antigen and antibody testing for histoplasmosis may be negative in some patients with active infection. (prnewswire.com)
- In this study we sought to determine whether, in an area with a moderate to high pneumococcal carriage rate in young adults, the BinaxNOW S. pneumoniae urinary antigen test detected asymptomatic pneumococcal nasopharyngeal colonization which would limit its utility as a diagnostic test for pneumococcal infection. (biomedcentral.com)
- Though cytokines and phagocyte, as host factors, have been shown to participate in defence against Aspergillus species yet the role of cysteine proteases, that is cathepsins, a lysosomal enzymes of phagocytes, remains unknown in fungal infection. (ijpsonline.com)
- Studies are available which shows that cytokines regulate the cysteine proteases processed immune molecules for their further action but their relationship with each other under fungal infection is not clear. (ijpsonline.com)
- Overall, the study reveals a correlation between cathepsins and cytokines and their regulatory role in fungal mediated infection. (ijpsonline.com)
- Nucci, M. Fungal infection prevention after hematopoietic cell transplantation. (hopkinsmedicine.org)
- Marr, K. Epidemiology and outcome of invasive fungal infection in adult hematopoietic stem cell transplant recipients: analysis of Multicenter Prospective Antifungal Therapy (PATH) Alliance registry. (hopkinsmedicine.org)
- Candidiasis is a fungal infection that may cause localized or systemic disease. (questdiagnostics.com)
- Finally, I realized that these were symptoms of fungal infection. (drugs.com)
- I thought it obvious that all of this was caused by fungal infection. (drugs.com)
- I do realize that these medications do not cause the fungal infection but rather seem to change the body's PH and delicate flora balance. (drugs.com)
- I believe I have had this fungal infection for years. (drugs.com)
- It could all be related to Diabetes and the systemic fungal infection. (drugs.com)
- I run out of Fluconzole the day before I see the specialit, who should see the fungal infection in full bloom. (drugs.com)
- He acknowledged that I had a fungal infection but failed to see the existing one because he was looking for thrush. (drugs.com)
- Are you sure your patient has a disseminated fungal infection? (oncologynurseadvisor.com)
- Fungal pneumonia is an infection of the lungs by fungi. (wikipedia.org)
- Also, fungal pneumonia can be caused by reactivation of a latent infection. (wikipedia.org)
Antibodies9
- Creative Diagnostics is a leading manufacturer and supplier of antibodies, viral antigens, innovative diagnostic components and critical assay reagents. (selfgrowth.com)
- Production and characterization of IgM monoclonal antibodies against hyphal antigens of Stachybotrys species. (cdc.gov)
- Novel mouse monoclonal antibodies specifically recognizing β-(1→3)-D-glucan antigen. (olmdiagnostics.com)
- The recent utilization of monoclonal antibodies in the development of antigen detection methods for the diagnosis of histoplasmosis and paracoccidioidomycosis offers further scope for improvement in this area. (nih.gov)
- When an antigen enters into a body, the immune system commences the production of antibodies in order to fight the invasive antigen. (esticastresearch.com)
- The B. dermatitidis antigen assay used rabbit antibodies to formalin-killed B. dermatitidis mold, prepared as described previously ( 13 ). (asm.org)
- For many strains of the parasite, part of this process requires that the erythrocyte binding antigen 175 (EBA-175) of the merozoite binds to sialic acid residues of glycophorin A on the erythrocyte surface, a receptor-ligand interaction which represents a potential target for inhibition by antibodies. (asm.org)
- In a large population study in The Gambia, serum positivity for IgG or IgG1 and IgG3 subclass antibodies to each of the EBA-175 recombinant antigens was not significantly associated with subsequent protection from clinical malaria. (asm.org)
- The body normally responds to an antigen by producing specific antibodies antibody, protein produced by the immune system (see immunity) in response to the presence in the body of antigens: foreign proteins or polysaccharides such as bacteria, bacterial toxins, viruses, or other cells or proteins. (thefreedictionary.com)
Fungi9
- Finally, we will discuss the potential of PAN-FUNGAL RIT the targeting of conserved fungal cell surface antigens by RIT as a treatment modality for fungi prior to the formal microbiological identification of the specific pathogen. (elsevier.com)
- In sum, RIT provides a mechanism for the targeted killing of drug susceptible or resistant fungi irrespective of the host immune status and may dramatically reduce the length of therapy currently required for many invasive fungal diseases. (elsevier.com)
- The curiosity established through all clinical mycolo- gists we contacted led us to extend the small unique assembly to a world symposium within which all elements of antigens of pathogenic and allergenic fungi and actinomycetes with regards to guy, animals, or even vegetation will be mentioned. (iol.pt)
- For instance, uncommon presentations of diseases with the pathogenic fungi, such as chronic cavitary histoplasmosis, coccidioidal empyema, and cryptococcal pneumonia are often difficult to diagnose with present techniques, and the detection of fungal antigens may prove to be more sensitive. (elsevier.com)
- Primary fungal laryngitis is commonly attributable to yeasts such as Candida , and Cryptococcus or fungi are known to cause endemic mycoses like Blastomyces, Paracoccidioides, and Coccidioides . (springer.com)
- A common misconception is that only immunotherapy for those fungi identified by culture from allergic fungal mucin should be included in the testing/treatment regimen for a patient. (medscape.com)
- Conversely, the presence of fungi on culture of sinus contents does not confirm the diagnosis of allergic fungal sinusitis (AFS). (medscape.com)
- Eosinophils are activated by recognizing certain antigens present in fungi, such as β-glucan. (news-medical.net)
- Eosinophils can phagocytose fungi, such as Cryptococcus neoformans and present antigens to other immune cells. (news-medical.net)
Invasive4
- This leads primarily to superficial disease but may also result in invasive fungal disease. (infoplease.com)
- Improved Detection of Invasive Pulmonary Aspergillosis Arising during Leukemia Treatment Using a Panel of Host Response Proteins and Fungal Antigens. (nih.gov)
- To improve the diagnosis of invasive aspergillosis (IA), we retrospectively compared competitive polymerase chain reaction (PCR) and sandwich ELISA for detection of serum galactomannan (GM) antigen. (nih.gov)
- In the pathogenesis of invasive pulmonary aspergillosis both fungal and host factors play roles. (ijpsonline.com)
Antibody11
- Using a monoclonal antibody that recognizes a putative catechol oxidase secreted by hyphae of Rhizoctonia solani , we show that bias due to retention of the antigen in soil is substantially greater than bias due to interference. (apsnet.org)
- Nosanchuk, JD & Dadachova, E 2012, ' Radioimmunotherapy of fungal diseases: The therapeutic potential of cytocidal radiation delivered by antibody targeting fungal cell surface antigens ', Frontiers in Microbiology , vol. 2, no. (elsevier.com)
- Methodology has been based either around antibody or antigen detection, although there is clear overlap between the two. (nih.gov)
- Antibody-based detection systems for the diagnosis of histoplasmosis, paracoccidioidomycosis and penicilliosis marneffei have now begun to incorporate a range of highly purified and well-characterized antigens, in contrast to the situation of a few years ago when relatively crude preparations derived from either whole cells or culture filtrate were used. (nih.gov)
- The application of such antigens offers improvements in reproducibility and specificity, although the detection of meaningful antibody responses in immunosuppressed individuals remains a problem. (nih.gov)
- An antigen is a foreign molecule that, when introduced into the body, triggers the production of an antibody by the immune system. (medicalxpress.com)
- At the molecular level, an antigen is characterized by its ability to be "bound" at the antigen-binding site of an antibody. (medicalxpress.com)
- This reaction can at times be vigorous, depending upon the resistivity of the antibody and virulency of the antigen. (esticastresearch.com)
- Specific site on an antigen to which an antibody binds. (ebi.ac.uk)
- Antigen that bound to the antibody-coated wells was detected with biotinylated anti- B. dermatitidis immunoglobulin G. The cutoff for positivity was determined by receiver operator characteristic (ROC) analysis, evaluating urine specimens from patients with blastomycosis versus those from healthy volunteers. (asm.org)
- To investigate sensitisation against food antigen, mice were intragastrically administered with ovalbumin every other day for nine weeks, and antiovalbumin antibody titres were measured weekly. (bmj.com)
Serum6
- Weakly positive cross reactions (0.5-1.5 units) may occur in the Aspergillus galactomannan assay in serum from patients with cryptococcosis with concentrations of cryptococcal antigen >1: 512. (miravistalabs.com)
- The detection of soluble fungal antigens in bodily fluids such as serum, pleural fluid, and bronchoalveolar lavage fluid may substantially improve the ability to diagnose fungal respiratory diseases. (elsevier.com)
- Preliminary data holds promise for the noninvasive diagnosis of deep-seated candidiasis (including pneumonia) and pulmonary aspergillosis by the detection of fungal antigens in serum and bronchoalveolar lavage fluid. (elsevier.com)
- One hundred five asthmatic subjects and 26 volunteers underwent skin testing with aeroallergens, including Aspergillus, serum precipitins against Aspergillus antigens, and specific IgG against Aspergillus fumigatus, total serum IgE levels, and routine blood and radiologic investigations. (nih.gov)
- Although culture is the standard method for definitive diagnosis, detection of cryptococcal antigen (CRAG) in serum or cerebrospinal fluid (CSF) is used for presumptive diagnosis. (cdc.gov)
- He extensively studied the serum of fungal antigens such as fluconazole, ketoconazole, amphotericin-B, fluorocytosin, and itraconazole which helped standardize the medical dosage and treatments for patients. (wikipedia.org)
Aspergillus10
- Even less cross-reactivity occurs between the galactomannan antigens detected in histoplasmosis, blastomycosis, or coccidioidomycosis and the Aspergillus galactomannan, and the true positive result is higher than the cross reaction. (miravistalabs.com)
- Sensitization to Aspergillus antigens and occurrence of allergic bronchopulmonary aspergillosis in patients with asthma. (nih.gov)
- Allergic bronchopulmonary aspergillosis (ABPA), which is predominantly a disease of asthmatic subjects, is caused by hypersensitivity to Aspergillus antigens. (nih.gov)
- We sought to determine the frequency of sensitization to Aspergillus antigens in asthmatic subjects and its effect on disease severity. (nih.gov)
- Thirty patients (28.5%) had a positive skin reactivity to Aspergillus antigens. (nih.gov)
- None of the control subjects were sensitized to Aspergillus antigens. (nih.gov)
- Septate hyphae were observed on histopathology of the laryngeal lesion, which was further confirmed as Aspergillus fumigatus after extraction of fungal DNA from formalin fixed paraffin embedded tissue (FFPET) and sequencing. (springer.com)
- Control subjects with aspergillosis included patients who were enrolled in an Institutional Review Board-approved protocol to evaluate antigen detection for diagnosis in patients with positive Aspergillus galactomannan antigenemia as identified during clinical testing. (asm.org)
- Marr, K.A. Healthy human T-Cell Responses to Aspergillus fumigatus antigens. (hopkinsmedicine.org)
- Fungal colonization with Aspergillus worsens excercise tolerance in HP patients, whereas Candida doesn't impact on HP. (ersjournals.com)
Aspergillosis2
- However, in the immunocompetent individuals (probably with genetic susceptibility), it can cause an allergic disorder, called allergic bronchopulmonary aspergillosis (ABPA), which is different from other hypersen-sitivity responses to inhaled allergens in that the A. fumigatus spores grow in the respiratory tract and continually shed soluble and particulate antigens and allergens in the large subsegmental bronchi. (78stepshealth.us)
- Cross-reactive antigen was detected for a single patient with cryptococcal meningitis (4.23 U) and another with aspergillosis (1.85 U) but was not detected for those with candidiasis or coccidioidomycosis or for healthy volunteers. (asm.org)
Galactomannan5
- Second, when sandwich ELISA are used to galactomannan antigen in fungal cell wall, the antigens can release into the blood. (selfgrowth.com)
- Complete cross-reactivity occurs in the Histoplasma and Blastomyces galactomannan antigen assays in specimens from patients with histoplasmosis or blastomycosis (table). (miravistalabs.com)
- Lesser cross-reactivity occurs between these galactomannan antigens and Coccidioides antigen, which is a different class of galactomannan. (miravistalabs.com)
- The aim of this work was to evaluate and compare the use of the BDG in combination with the galactomannan antigen (GAL) assay in order to exclude or confirm suspected IFIs. (openmicrobiologyjournal.com)
- A candidate marker panel of host response (9 plasma proteins, 4 peptides), fungal polysaccharides (galactomannan), and cell wall components (β-D glucan) were selected by statistical filtering for patients with leukemia as a primary underlying diagnosis. (nih.gov)
Immunoassays for quantification1
- This paper describes methods to improve the use of immunoassays for quantification of soilborne fungal antigens. (apsnet.org)
Histoplasmosis3
- Partly as a consequence of this a great deal of attention has focused on the development of antigen detection assays, and such methods have proved particularly successful, as for instance in the serodiagnosis of histoplasmosis in AIDS patients. (nih.gov)
- Cross-reactive antigen was detected in the urine from 96.3% of patients with histoplasmosis, all patients with paracoccidioidomycosis, and 7 of 10 patients with penicilliosis marneffei. (asm.org)
- The cases included a wide range of mycoses such as candidiasis, histoplasmosis, African blastomycosis, mycetoma, fungal arthritis, and newly discovered cases of cutaneous, ocular and osteoarticular manifestations of candidiasis in young heroin addicts. (wikipedia.org)
Detection of Fungal Antigens1
- 3 years in the past while Professor Garry Cole visited our Mycology unit on the Pasteur Institute we mentioned the potential for organizing a small foreign Symposium on "Isolation, Purification and Detection of Fungal Antigens" constrained to eight American/Canadian scientists and to eight French individuals. (iol.pt)
Pathogens7
- This new report, titled One Health: Fungal Pathogens of Humans, Animals, and Plants , highlights the remarkable advances in the field and provides updated recommendations to address scientific and public health challenges in the new environment. (nih.gov)
- In addition, better understanding of how the immune system works against fungal pathogens has improved the further development of these new vaccination strategies. (scielo.br)
- In recent years, several studies in the field of medical mycology have been focused on the development of new vaccines against fungal pathogens. (scielo.br)
- Eosinophils phagocytose invading pathogens, allowing them to present pathogenic antigens to other cells. (news-medical.net)
- In clinical evaluations, pathogens of more than 200 bacterial and 65 fungal genera have been identified so far. (bionity.com)
- Prior to Drouhet's influence, Institut Pasteur mainly studied fungal pathogens on botany. (wikipedia.org)
- Since then, Drouhet had opened up the field to include human and animal fungal pathogens as well. (wikipedia.org)
Assays3
- We identify two sources of bias, retention of the antigen in soil due to bonding and interference of soluble soil components in plate-trapped-antigen, enzyme-linked immunosorbent assays. (apsnet.org)
- Possible mechanisms for the effect due to Cu 2+ and the implications for the design and use of calibration curves for assays involving quantification of fungal antigens in soil are discussed. (apsnet.org)
- Does Cross-Reactivity Occur in Fungal Antigen Assays? (miravistalabs.com)
Histoplasma2
- For example, in coccidioidomycosis cases the Coccidioides antigen may be 4.2 ng/mL while the Histoplasma cross reaction is 0.4 ng/ml. (miravistalabs.com)
- or = 4-fold titer rise in complement fixation between acute and convalescent sera, or positive urinary Histoplasma capsulatum (HC) antigen. (cdc.gov)
Hypersensitivity4
- Cutaneous basophilic hypersensitivity response to fungal antigens in guinea pigs. (semanticscholar.org)
- In order to avoid such vigorous reactions, or high degree of hypersensitivity the antigen skin tests are conducted. (esticastresearch.com)
- Thus, antigen skin tests are in demand, as one can easily measure the degree of hypersensitivity during an attack by an antigen. (esticastresearch.com)
- Fungal antigens sensibilization is a known cause of hypersensitivity pneumonitis (HP). (ersjournals.com)
Abstract1
- Abstract β-(1→3)-D-Glucan is an essential component of the fungal cell wall. (olmdiagnostics.com)
Soluble1
- Moreover, testing aflatoxin in food and soluble antigen of sporothrix patients are early, rapid and specific method to diagnose antigens. (selfgrowth.com)
Purification and Detection1
- In 1978, Drouhet published a textbook called "Fungal Antigens - Isolation, Purification and Detection" which was conceived after a symposium on fungal antigens. (wikipedia.org)
Cell Wall Antigens1
- Host defense mechanisms rely on the capacity of professional phagocytes to recognize Candida cell wall antigens. (mdpi.com)
Substance1
- heightened response in a body tissue to an antigen or foreign substance. (thefreedictionary.com)
Pulmonary2
- Antigen was detected in the urine of 92.9% of patients with blastomycosis, including 25 of 28 with disseminated blastomycosis (89.3%) and all 14 cases of pulmonary blastomycosis (100%) (Table 1 ). (asm.org)
- Pulmonary scedosporiosis, caused by Allescheria boydii is also a very rare fungal involvement of the lungs. (wikipedia.org)
Area of fungal1
- As immunological testing technology advances, the application area of fungal antigens test are widening. (selfgrowth.com)
Antifungal3
- However, long-lasting antifungal protection and disease control were successfully achieved upon vaccination with purified fungal antigens that activated CD4(+) T cells through the endosome/lysosome pathway. (pasteur.fr)
- The data illustrate that the reduction in fungal load in both organs probably results in a decreased local inflammatory response, as measured by decreased levels of interleukin-4 and interleukin-10 and increased level of interferon gamma in the antifungal compounds treated mice. (ijpsonline.com)
- Fungal pneumonia can be treated with antifungal drugs and sometimes by surgical debridement. (wikipedia.org)
Blastomycosis2
ELISA6
- First, use ELISA or Latex agglutination to test mannan antigens which exist in yeast cell wall. (selfgrowth.com)
- Third, capsular polysaccharide antigen of Cryptococcus neoformans can be tested through latex agglutination test or ELISA. (selfgrowth.com)
- Forth, enolase of molecular weight 48kD can be detected by ELISA kits and WB, which is beneficial to test antigen with candida specificity. (selfgrowth.com)
- BALB/c mice were immunized with cScp and hybridomas were screened against the cScp using an antigen-mediated indirect ELISA. (cdc.gov)
- MAb reactivity to spore and hyphal antigens was also tested by a capture ELISA and by fluorescent halogen immunoassay (fHIA). (cdc.gov)
- The inh-ELISA detected circulating antigen in 100% of patients with the acute form of PCM and in 95.31 and 100% of patients with the chronic multifocal and unifocal forms of PCM according to the patient's clinical presentation. (asm.org)
Candida Antigen1
- Deagnosis and Therapeutic Monitoring by the Detection of Candida Antigen, .BETA. (nii.ac.jp)
Diagnostics1
- Webinar on fungal diagnostics" (PDF). (wikipedia.org)
Cryptococcus1
- If the antigens are detected in cerebrospinal fluid, it can be diagnosed as cryptococcus encephalitis. (selfgrowth.com)
Assay2
- Calibration curves, prepared by diluting known quantities of an antigen into soil extracts and into soil, were described by a four-parameter logistic curve from which two principal criteria, the lower detection limit and the horizontal locational parameter, were used to summarize the sensitivity and bias of an immuno-assay. (apsnet.org)
- Given the need for data for a rapid, point-of-care cryptococcal antigen (CRAG) lateral flow immunochromatographic assay (LFA), we assessed diagnostic performance of cerebrospinal fluid (CSF) culture, CRAG latex agglutination, India ink microscopy, and CRAG LFA for 832 HIV-infected persons with suspected meningitis during 2006-2009 (n = 299) in Uganda and during 2010-2012 (n = 533) in Uganda and South Africa. (cdc.gov)
Mycoses1
- Edouard Drouhet (June 18, 1919 - January 1, 2000) was a physician, biologist, and medical mycologist who played a key role in understanding how anti-fungal agents such as ketoconazole and amphotericin-B can be used as therapeutic treatments in humans with superficial or deep-seated mycoses. (wikipedia.org)
Anti-fungal therapy1
- Case mortality in fungal pneumonias can be as high as 90% in immunocompromised patients, though immunocompetent patients generally respond well to anti-fungal therapy. (wikipedia.org)
Diseases1
- Gabriel Segretain and Edouard Drouhet co-founded ISHAM which is a community for clinical scientists and researchers interested in fungal ailments and fungus-like diseases. (wikipedia.org)
Opportunistic fungal1
- There is an especially urgent need for sensitive, reliable, commercially available tests for the diagnosis of opportunistic fungal pneumonias that occur in immunocompromised hosts. (elsevier.com)
Reactivity1
- Antigens when incorporated into a human body can have varied effects depending upon the reactivity of the antigen with the human immune system. (esticastresearch.com)
Cytotoxic T Lymphocyt1
- All six monkeys immunized with PfCSP DNA, seven of nine immunized with PfSSP2 DNA, and five of six immunized with PfExp-1 or PfLSA-1 DNA had detectable antigen-specific cytotoxic T lymphocytes (CTL) after in vitro restimulation of peripheral blood mononuclear cells. (asm.org)
Pathogen1
- Candida albicans is an ubiquitous fungal commensal of human skin and mucosal surfaces, and at the same time a major life-threatening human fungal pathogen in immunocompromised individuals. (mdpi.com)
Urine1
- If this high rate of colonization translates to the presence of antigen in the urine it may limit the diagnostic utility of the BinaxNOW test in certain populations. (biomedcentral.com)
Peptides1
- Identification of the immunodominant peptides of the MART-1 human melanoma antigen recognized by the majority of HLA-A2-restricted tumor infiltrating lymphocytes. (nii.ac.jp)
Diagnostic1
- To enhance the diagnostic capability of carbohydrate antigen 125 in cardiac problems, a recent report showed that coinvestigating for copeptin level is useful. (revespcardiol.org)
Sensitivity1
- Pathologists who are less experienced with morphological identification of fungal organisms may not achieve these levels of sensitivity. (asm.org)
Patients3
- 30 mm in diameter occurring 24-48 h after an injection) are said to be more common when administering immunotherapy for molds than for other antigens, this has not been the reported experience in treating patients with allergic fungal sinusitis (AFS). (medscape.com)
- On the basis of experience, administration of immunotherapy to patients with allergic fungal sinusitis (AFS) is currently recommended for the same duration as that recommended for patients with allergies in general, ie, 3-5 years. (medscape.com)
- Carbohydrate antigen 125 might increase in some patients with heart failure 4 but it can also increase in several conditions in women, such as ovarian tumors and endometriosis. (revespcardiol.org)
Clinical1
- As a result, some fungal vaccines have advanced through clinical trials. (scielo.br)
Respiratory tract1
- Nevertheless, the role of fungal colonization in respiratory tract on clinics and prognosis of HP is still unclear. (ersjournals.com)
Immune response2
- An immunogen is able to induce an immune response, whereas an antigen is able to combine with the products of an immune response once they are made. (medicalxpress.com)
- Any antigen that is a phosphorylated microbial metabolite which activates an immune response in humans. (ebi.ac.uk)
Colonization1
- To assess the influense of fungal colonization on excercise tolerance in HP. (ersjournals.com)