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- W2000605890 abstract "Cell-mediated immunity has been implicated in the pathogenesis of polymyositis (PM). We conducted a prospective study in which serum levels of soluble interleukin-2 receptors (IL-2R), IL-1 alpha, and IL-2 were correlated with creatine kinase (CK) levels and clinical disease activity. Cytokines and IL-2R were quantitated in 133 serum samples from 14 patients by use of an enzyme-linked immunosorbent assay. In patients with acute PM (9 patients), soluble IL-2R and IL-1 alpha levels were elevated initially, but declined rapidly with therapy. A significant linear relationship was found between soluble IL-2R levels and CK levels. IL-2 was initially detectable in only 3 patients, and it disappeared with therapy in all 3. The levels of cytokines and IL-2R were consistently normal in patients with inactive PM (2 patients). In patients with chronic PM (3 patients), the cytokines and soluble IL-2R levels were normal despite persistently abnormal CK levels and/or muscle weakness. Cellular IL-2R levels correlated positively with serum levels of soluble IL-2R. Our studies substantiate a pathogenic role for cellular immunity in PM, with the finding of activation of lymphocytes. The finding of increased levels of IL-1 alpha demonstrates for the first time that there is monocyte activation in PM. Persistent elevation of CK levels after normalization of the levels of cytokines and IL-2R may be prognostic of impending chronic disease. Serum soluble IL-2R appear to be a sensitive indicator of improvement or exacerbation of disease activity in patients with PM." @default.
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- W2000605890 date "1990-07-01" @default.
- W2000605890 modified "2023-09-23" @default.
- W2000605890 title "Interleukin-1α, interleukin-2, and soluble interleukin-2 receptors in polymyositis" @default.
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- W2000605890 doi "https://doi.org/10.1002/art.1780330713" @default.
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