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  • 1
    Publication Date: 1988-02-26
    Description: The inheritance of particular alleles of major histocompatibility complex class II genes increases the risk for various human autoimmune diseases; however, only a small percentage of individuals having an allele associated with susceptibility develop disease. The identification of allelic variants more precisely correlated with disease susceptibility would greatly facilitate clinical screening and diagnosis. Oligonucleotide-primed gene amplification in vitro was used to determine the nucleotide sequence of a class II variant found almost exclusively in patients with the autoimmune skin disease pemphigus vulgaris. In addition to clinical implications, the disease-restricted distribution of this variant should provide insight into the molecular mechanisms underlying associations between diseases and HLA-class II genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sinha, A A -- Brautbar, C -- Szafer, F -- Friedmann, A -- Tzfoni, E -- Todd, J A -- Steinman, L -- McDevitt, H O -- New York, N.Y. -- Science. 1988 Feb 26;239(4843):1026-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Microbiology, Stanford University, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2894075" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Autoimmune Diseases/*genetics/immunology ; Base Sequence ; DNA/genetics ; Gene Amplification ; Genetic Variation ; HLA-D Antigens/*genetics ; HLA-DQ Antigens/*genetics/immunology ; HLA-DR Antigens/immunology ; Humans ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Pemphigus/*genetics/immunology ; Polymorphism, Restriction Fragment Length
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 1988-05-20
    Description: Class II major histocompatibility (MHC) molecules have an immunoregulatory role. These cell-surface glycoproteins present fragments of protein antigens (or peptides) to thymus-derived lymphocytes (T cells). Nucleotide sequence polymorphism in the genes that encode the class II MHC products determines the specificity of the immune response and is correlated with the development of autoimmune diseases. This study identifies certain class II polymorphic amino acid residues that are strongly associated with susceptibility to insulin-dependent diabetes mellitus, rheumatoid arthritis, and pemphigus vulgaris. These findings implicate particular class II MHC isotypes in susceptibility to each disease and suggest new prophylactic and therapeutic strategies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Todd, J A -- Acha-Orbea, H -- Bell, J I -- Chao, N -- Fronek, Z -- Jacob, C O -- McDermott, M -- Sinha, A A -- Timmerman, L -- Steinman, L -- New York, N.Y. -- Science. 1988 May 20;240(4855):1003-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Microbiology, Stanford University, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3368786" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arthritis, Rheumatoid/immunology ; Autoantibodies/*genetics ; Autoimmune Diseases/*genetics ; Diabetes Mellitus, Type 1/immunology ; HLA-D Antigens/*genetics ; Humans ; Major Histocompatibility Complex ; Molecular Sequence Data ; Pemphigus/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1990-06-15
    Description: The ability to discriminate between self and nonself antigens is vital to the functioning of the immune system as a specific defense against invading microorganisms. Failure of the immune system to "tolerate" self tissues can result in pathological autoimmune states leading to debilitating illness and sometimes death. The induction of autoimmunity involves genetic and environmental factors that have focused the attention of researchers on the trimolecular complex formed by major histocompatibility complex molecules, antigen, and T cell receptors. Detailed molecular characterization of these components points to potential strategies for disease intervention.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sinha, A A -- Lopez, M T -- McDevitt, H O -- New York, N.Y. -- Science. 1990 Jun 15;248(4961):1380-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, Stanford University School of Medicine, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1972595" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoantibodies/immunology ; Autoantigens/immunology ; Autoimmune Diseases/chemically induced/*immunology ; B-Lymphocytes/immunology ; Bacterial Infections/immunology ; Biological Factors/physiology ; CD4-Positive T-Lymphocytes/immunology ; Cytokines ; Gene Rearrangement, T-Lymphocyte ; Histocompatibility Antigens Class I/immunology ; Histocompatibility Antigens Class II/immunology ; Humans ; *Immune Tolerance ; Major Histocompatibility Complex ; Mice ; Polymorphism, Genetic ; Polymorphism, Restriction Fragment Length ; Receptors, Antigen, T-Cell/genetics/immunology ; T-Lymphocytes, Regulatory/immunology ; *Virus Diseases/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1986-01-10
    Description: Daunomycin, when conjugated with a targeting antigen by an acid-sensitive spacer, remains inactive at the intravascular pH of 7 but becomes active after cleavage within the acidic lysosomal environment of the target cell. This observation made it possible to construct cytocidal compounds that caused antigen-specific suppression of murine lymphocyte function. When daunomycin was coupled to the hapten conjugate of ovalbumin by an acid-sensitive cis-aconityl group, it caused hapten-specific impairment of immunocompetence in murine B lymphocytes in vitro and in vivo. Furthermore, the response by T lymphocytes to concanavalin A in vitro was selectively eliminated by a conjugate between daunomycin plus the acid-sensitive spacer and a monoclonal antibody specific for T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Diener, E -- Diner, U E -- Sinha, A -- Xie, S -- Vergidis, R -- New York, N.Y. -- Science. 1986 Jan 10;231(4734):148-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3484557" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoimmune Diseases/therapy ; Concanavalin A/pharmacology ; Daunorubicin/*administration & dosage/pharmacology ; Fluorescein ; Fluoresceins/administration & dosage/pharmacology ; *Immunosuppression ; Immunosuppressive Agents/*pharmacology ; Lymphocyte Activation/drug effects ; Mice ; Mice, Inbred CBA ; Nitrohydroxyiodophenylacetate/administration & dosage/pharmacology ; Ovalbumin/administration & dosage/pharmacology ; Picrates/administration & dosage/pharmacology ; Spleen/cytology ; T-Lymphocytes/drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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