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Analysis of apoptosis-related proteins Casp-9, Casp-8 and Casp-3 expression levels in cell lysates from (A) A431 and (B) HaCaT cells. Values were normalized to GAPDH. Columns represent mean values and bars represent ± SD (n=3). *P<0.05, **P<0.01 and ***P<0.001 vs. CTRL. Representative blot bands are presented in Fig. S1. SD, standard deviation; Casp, caspase.
