The effect of inhibition by NAC, without NAC (□), with 5 μm NAC (■) on stress-induced (A) maIL-15, (B) caspase-1, and (C) IL1β. Stress-mediated expression of IL-1βR stress up-regulates IL-1βR only in CD45RO+ memory and not in naive CD45RO− CD4 T cells (D and E). As, sodium arsenite; Gr, gramicidin; DITH, dithiocarbamate.