Fig. 1

Determination of apoptosis and CD95 expression in CD4+ and CD8+ T cells co-culture with NK cells. (A and B) Representative flow cytometry plots using Annexin V-FITC/PI staining for apoptosis in in CD4+ (A) and CD8+ (B) T cells. (C and D) Flow analyses of CD95 expression in CD4+ (C) and CD8+ (D) T cells. *: P < 0.5; two-tailed Student’s t-test.