Rheumatology 2002; 41: 1341-1345
© 2002 British Society for Rheumatology
Editorial |
Unmasking the anti-inflammatory cytokine response in rheumatoid synovitis
Department of Clinical and Experimental Medicine, Section of Internal Medicine and Oncological Sciences, Center for the Study of Rheumatic Diseases, University of Perugia, Perugia,
1 Department of Clinical and Experimental Medicine, Section of Internal Medicine, University of Verona, Verona, Italy and
2 Department of Rheumatology, Division of Medicine, Guy's and St Thomas' School of Medicine (GKT), Guy's Campus, London, UK
| The first 150 words of the full text of this article appear below. |
The contribution of T lymphocytes to the pathogenesis of rheumatoid arthritis (RA) remains a matter of intense debate. Few people, however, would question the central role of T cells in initiating and modulating RA immune pathogenesis via the recognition of some unknown (exogenous/auto-)antigens in the joint and the production of various cytokines [13]. In this regard, there is general agreement that RA synovitis is a Th1-dominated disease [4]. Th1 cells, indeed, are prominent among the T cells isolated from the synovium of patients with RA [57]. In addition, T-cell clones from the rheumatoid joint produce predominantly proinflammatory cytokines, such as interleukin (IL)-2, interferon (IFN)-
and IL-12 [8, 9]. Selective enrichment of Th1 cells in the RA synovium is also suggested by single-cell analysis of synovial CD4+ T cells that demonstrates greater production of the Th1 cytokine IFN-
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