Human monoclonal rheumatoid factors derived from the polyclonal repertoire of rheumatoid synovial tissue: production and characterization. 1989

I Randen, and K M Thompson, and J B Natvig, and O Førre, and K Waalen
Institute of Immunology and Rheumatology, Oslo, Norway.

A panel of 20 human monoclonal antibodies was produced from cells derived from the synovial tissue of two rheumatoid arthritis patients and one polyarticular juvenile rheumatoid arthritis patient. Fourteen IgM monoclonal antibodies were classical rheumatoid factors (RFs) with specificities restricted to IgG and included twelve kappa and two lambda proteins. Two of them were pan-specific for IgG and reacted with all four human subclasses. Nine showed the Ga specificity, i.e. they reacted with IgG1, IgG2 and IgG4 subclass proteins. Two showed the 'new Ga-related' specificity, i.e. they reacted with IgG1, IgG2 and IgG4 subclass proteins, and also with the Ge3m(st) allotype proteins. One RF demonstrated an anti-G3m(u) anti-allotypic specificity. Five IgM(lambda) monoclonal antibodies and one IgM(kappa) monoclonal antibody demonstrated polyreactivity against various antigens including DNA, human thyroglobulin, human serum albumin and tetanus toxoid.

UI MeSH Term Description Entries
D007074 Immunoglobulin G The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B. Gamma Globulin, 7S,IgG,IgG Antibody,Allerglobuline,IgG(T),IgG1,IgG2,IgG2A,IgG2B,IgG3,IgG4,Immunoglobulin GT,Polyglobin,7S Gamma Globulin,Antibody, IgG,GT, Immunoglobulin
D007129 Immunoglobulin Gm Allotypes Allelic variants of the gamma-immunoglobulin heavy chain (IMMUNOGLOBULIN GAMMA-CHAINS) encoded by ALLELES of IMMUNOGLOBULIN HEAVY CHAIN GENES. Allotypes, Immunoglobulin Gm,Gm Allotypes,Ig Gm Allotypes,Allotype, Gm,Allotype, Ig Gm,Allotype, Immunoglobulin Gm,Allotypes, Gm,Allotypes, Ig Gm,Gm Allotype,Gm Allotype, Ig,Gm Allotype, Immunoglobulin,Gm Allotypes, Ig,Gm Allotypes, Immunoglobulin,Ig Gm Allotype,Immunoglobulin Gm Allotype
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000911 Antibodies, Monoclonal Antibodies produced by a single clone of cells. Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal
D000918 Antibody Specificity The property of antibodies which enables them to react with some ANTIGENIC DETERMINANTS and not with others. Specificity is dependent on chemical composition, physical forces, and molecular structure at the binding site. Antibody Specificities,Specificities, Antibody,Specificity, Antibody
D001172 Arthritis, Rheumatoid A chronic systemic disease, primarily of the joints, marked by inflammatory changes in the synovial membranes and articular structures, widespread fibrinoid degeneration of the collagen fibers in mesenchymal tissues, and by atrophy and rarefaction of bony structures. Etiology is unknown, but autoimmune mechanisms have been implicated. Rheumatoid Arthritis
D012217 Rheumatoid Factor Autoantibodies found in adult RHEUMATOID ARTHRITIS patients that are directed against GAMMA-CHAIN IMMUNOGLOBULINS. Factor, Rheumatoid
D013583 Synovial Membrane The inner membrane of a joint capsule surrounding a freely movable joint. It is loosely attached to the external fibrous capsule and secretes SYNOVIAL FLUID. Synovium,Membrana Synovialis Capsulae Articularis,Membrane, Synovial,Membranes, Synovial,Synovial Membranes

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