Prostate cancer cells were treated with the indicated drugs. Drug‐induced apoptosis was determined using the Annexin V‐Fluorescein Isothiocyanate (FITC)/Propidium Iodide (PI) Apoptosis Kit (Beckman Coulter) by following the manufacture's protocol. The experiments were repeated at least three times. Mean percentage of AnnexinV+/PI‐ (early apoptotic) and Annexin V+/PI+ (late apoptotic and/or dead) ± standard errors from triplicates of one representative experiment is shown.
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