Figure 2.

Effects of cisplatin (panel A), paclitaxel (panel B), docetaxel (panel C), alone or in combination with curcumin at the IC50 dose concentration (D–F), respectively) on DU-145 cells viability. Using the colorimetric MTT assay, cell death induced by chemotherapeutic drugs at the indicated concentrations was assessed after 48 h and 72 h treatment. The histograms represent the mean (% of cell death normalized to untreated control cells) of three independent experiments performed in triplicate (n = 9). *: p < 0.05, **: p < 0.001 compared to the controls. Gray bars indicate 48 h time, while white bars indicate 72 h time.