Figure 2.

The inhibitory effect of CU and LF on the proliferation of (a) PC3 and (b) DU145 cells. Prostatic cells were treated with CU (2.5 μg/mL; 5 μg/mL) and LF (175 μM) for 24 h. The optical density values (490 nm) for cell viability were measured by MTT assay using DMSO as a positive control. Each assay was performed in triplicate. Box and whisker plots show 25th and 75th percentile range (box) with 95% confidence interval (whiskers) and median values (transverse lines in boxes).