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Shift Toward T Lymphocytes with Th1 and Tc1 Cytokine-secterion Profile in the Joints of Patients with Osteoarthritis

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Date 2002 Feb 16
PMID 11845462
Citations 9
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Abstract

Osteoarthritis (OA), although a heterogeneous disease, is generally believed by rheumatologists to be primarily a disease generated by biomechanical alterations. In order to determine the role of T cells, the pattern of T lymphocyte cytokines and to characterize the mononuclear cells from both peripheral blood (PB) and synovial fluid (SF) from patients with OA flow cytometry with a panel of monoclonal antibodies recognising CD4, CD8 and intracellular cytokines (IL2, IL4, IL10, gamma-IFN) was employed. The coexpression of CD4 and CD8 markers only on the SF T cells surface after in vitro stimulation by phorbol-miristate acetate and ionomicine, but not on PBL or in vitro unstimulated SFL was noted. The intracellular IFN-gamma was detected in enhanced levels in both CD4+ and CD8+ SF T cells, while the IL2 contents was not different in PB and SF samples. The Th2/Tc2 cytokines (IL4 and IL10) were detected in low amounts in both PBL and SFL. This study shows the role of some T cell populations and cytokines in the generation of joint destruction in osteoarthritis.

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