Abstract
Chronic inflammatory syndromes such as rheumatoid arthritis (RA) are associated with high frequencies of CD4+CD28− T cells. The number of these cells is genetically determined and may also be a consequence of chronic exposure to tumor necrosis factor-alpha (TNFα). The aim of this study was to examine whether the reported efficacy of anti-TNFα therapy in RA involves a resurgence of T cell populations that re-express CD28. After 36-week therapy with infliximab, a significant decrease in CD4+CD28− T cells in RA patients was observed in comparison with baseline. The results suggest that TNFα-neutralizing therapy may restore T cell homeostasis and reduce expansion of the CD28− T cells, which are cytotoxic and may contribute to organ manifestations in RA.
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Pawlik, A., Ostanek, L., Brzosko, I. et al. Therapy with infliximab decreases the CD4+CD28− T cell compartment in peripheral blood in patients with rheumatoid arthritis. Rheumatol Int 24, 351–354 (2004). https://doi.org/10.1007/s00296-003-0374-4
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DOI: https://doi.org/10.1007/s00296-003-0374-4