title: Impaired release of a T-cell specific suppressor factor in rheumatoid arthritis.
abstract: Peripheral blood T cells from patients with rheumatoid arthritis (RA) and scleroderma (PSS) were assessed for their ability to release T-cell-specific suppressor activity (TRSA) upon incubation with a suppressor activating factor (SAF) derived from a human lymphoblastoid cell line (CEM). T cells from 11/20 (55%) RA patients exhibited impaired TRSA release in contrast to 1/12 (8%) of PSS patients. RA patients demonstrating impaired TRSA release exhibited more active arthritis than patients demonstrating normal TRSA release.
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000276:immunology* / Q000473:pathology; D005260:Female; D006801:Humans; D007108:Immune Tolerance; D008213:Lymphocyte Activation; D008297:Male; D008875:Middle Aged; D012595:Scleroderma, Systemic / Q000276:immunology; D013491:Suppressor Factors, Immunologic / Q000378:metabolism*; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D013491:Suppressor Factors, Immunologic