Summary
In rheumatoid arthritis (RA) an immuno dysregulation alters the release of neopterin from human monocytes/macrophages, probably by activation of a feed-back regulation mechanism in pterin metabolism. With the overactivation of T-lymphocytes, the secretion of interleukin-2 and its receptor (IL-2R) is influenced. Investigation on 84 RA patients has shown that this immunoactivation is accompanied by an increased secretion of neopterin and soluble IL-2R in the serum, and that both parameters are very suitable for detection of inflammatory disease activity. The significant correlation between neopterin and IL-2R (r=0.65; p≤0.001) in RA points out a possible connection in pathomechanisms of the immune system.
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Kullich, W. Correlation of interleukin-2 receptor and neopterin secretion in rheumatoid arthritis. Clin Rheumatol 12, 387–391 (1993). https://doi.org/10.1007/BF02231585
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DOI: https://doi.org/10.1007/BF02231585