Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UNIPROT:P01889 (ankylosing spondylitis)
 5,717 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Analysis of five serum samples and three synovial fluids from patients with ankylosing spondylitis (AS) and five serum samples from healthy blood donors for the presence of antibodies cross reacting with the Fc part of rabbit IgG (rheumatoid factors (RFs] using an isotype specific, enzyme linked immunosorbent assay (ELISA) showed only insignificant amounts of free RFs, while IgG RFs were observed in alkaline dissociated circulating immune complexes (CICs). Only insignificant amounts of free antibodies reacting with the psoriasis associated antigen pso p27 could be detected in the samples, while extensive amounts of IgG antibodies and moderate amounts of IgM antibodies reacting with pso p27 were detected in alkaline dissociated CICs from the patients. Pso p27 has been reported to share a common determinant with the Fc part of human IgG. Removal of the RF activity from the CICs of patients with AS by absorption with IgG resulted in a decrease of the anti-pso p27 activity. Monoclonal anti-pso p27 antibodies in a sandwich ELISA were used to detect antigens cross reacting with pso p27. A positive reaction was observed in all serum CICs and in one of the synovial fluid CICs. The data indicate that antigens related to pso p27 participate in CIC formation in AS and may also be responsible for the elicitation of rheumatoid factors in patients with AS.
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PMID:Participation of antigens related to the psoriasis associated antigen, pso p27, in immune complex formation in patients with ankylosing spondylitis. 341 62

A rabbit antiserum against the major internal protein, p27, of a psoriasis associated retrovirus-like particle has been applied in an immunofluorescence assay for the detection of antigens cross reacting with p27 in patients with psoriatic arthritis, seronegative rheumatoid arthritis, or ankylosing spondylitis. Antigens reacting with anti-p27 antibodies were present in lymphocytes from blood or synovial fluid from all patients examined. However, the expression was restricted to 0.01-0.1% of the cells. Among the positive p27 cells were cells reacting with markers for T, B, or NK cells. The anti-p27 antibodies also reacted with mononuclear cells in the synovial membrane and with the internal wall of some small or medium sized vessels in sections of synovial biopsy specimens from the patients with chronic arthritis. The reaction with mononuclear synovial membrane cells was restricted to approximately 0.1% of the cells. Blood lymphocytes or synovial sections from healthy persons did not react with the anti-p27 antibodies. The implication of these observations in the pathogenesis of chronic arthritis in man is discussed.
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PMID:Antigens related to the major internal protein, p27, of a psoriasis associated retrovirus-like particle are expressed in patients with chronic arthritis. 390 44