... Takeno M, Saito N, Yokoe T, Kaneko A, Asai T, Sakane T: Modulation by proinflammatory cytokines of Fas/ Fas ligand- mediated apoptotic cell death of synovial cells in patients with rheumatoid arthritis ... to FasL -induced cell death, and TNF -α prevented these cells from undergoing FasL -induced cell death in a dose-dependent manner No such inhibitory effects of TNF -α on FasL -induced apoptosis were ... the proinflammatory cytokine TNF -α has strong apoptosis inhibiting effects in periarticular tenocytes from OA patients but does not affect apoptosis significantly in normal tenocytes In our experiments,...