Cytotoxicity of TCLs from FL4, FL6, FL10, FL12, and FL15 expanded by stimulation with autologous CD40-FL in the presence of IL-2 and IFN-γ. TCLs were stimulated three times with autologous CD40-FL, and cytotoxicity was measured by JAM test at day 28. Cytokines were added after 3 days of initiation of coculture of T cells and CD40-FL cells. Autologous CD40-FL cells (•), FL cells (▪), autologous CD40-B cells (□), autologous PHA blasts (○), and allogeneic CD40-FL cells (⋄) were used as targets.