Fig. 6. Arctigenin-induced apoptosis in FaDu cells was mediated by caspase.
(A) Z-VAD-fmk, a pan-caspase inhibitor, reversed Arctigenin induced cell death in FaDu cells. (B) Activation of caspase-3 and PARP in FaDu cells treated with Arctigenin was inhibited in the presence of Z-VAD-fmk. Each data point represents the mean ± SEM of four experiments (**p < 0.01).
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