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Expression of Activation Markers on CD4 + and CD8 + Cells from Synovial Fluid, Synovial Tissue, and Peripheral Blood of Patients with Inflammatory Arthritides
Author(s) -
HOVDENES J.,
GAUDERNACK G.,
KVIEN T. K.,
EGELAND T.
Publication year - 1989
Publication title -
scandinavian journal of immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.934
H-Index - 88
eISSN - 1365-3083
pISSN - 0300-9475
DOI - 10.1111/j.1365-3083.1989.tb01167.x
Subject(s) - synovial fluid , cd8 , antigen , synovial membrane , immunology , medicine , cd3 , microbiology and biotechnology , arthritis , biology , pathology , osteoarthritis , alternative medicine
We studied the expression of the Tac antigen, the transferrin receptor (Tfr‐R), HLA class II antigens (DR, DQ, DP), CD30, and Act 1 on purified CD4 + and CD8 + cells isolated from synovial fluid (SF), synovial tissue (ST), and peripheral blood (PB) of patients with rheumatoid arthritis (RA) and with non‐RA inflammatory arthritides (not ST). Subfractionated T cells of PB from healthy individuals served as controls. SF CD4 + cells from RA and non‐RA arthritides expressed the Tac antigen much more frequently than corresponding CD8 + cells (54 and 58% versus 16 and 17%). In contrast, SF CD8 + cells of both patient groups expressed the HLA class II antigens rather more frequently than the corresponding CD4 + cells (88 and 68% versus 72 and 40%), Tfr‐R expression was low on CD4 + and CD8 + SF T cells from both patient groups SF T cells did not express CD30, and their expression of Act 1 did not differ from that of normal PB T cells. The RA ST findings were similar to those of RA SF. The overall expression of activation markers on PBT cells of patients was slightly higher than on those of normal controls, and the RA group was slightly higher than the non‐RA group. The results show that intra‐articular T cells in arthritis are activated and that CD4 + and CD8 + subsets differ in their expression of Tac antigen and HLA class II antigens. There were also similar patterns of activation markers on both CD4 + and CD8 + SF cells from RA and non‐RA arthritis patients, suggesting that several types of arthritis display a similar immunopathogenesis in the joints.