PD induces apoptosis in BEL-7402 cells. BEL-7402 cells were treated with different concentrations of PD for 24 h. (A) Apoptotic cells were detected by Annexin V/PI staining using flow cytometry. (B) Quantitation of the results obtained from (A). (C) The apoptotic cells were evaluated with <t>Hoechst</t> 33342 staining and imaged using the In Cell Analyzer 2000 System. (D) The expression of apoptosis-related proteins, including cleaved PARP, cleaved caspase-3, Bcl-2, and Bax, were analyzed by Western blot analysis. (E) Quantitation of the results obtained from (D). b P
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