832059.fig.002a
(a)
832059.fig.002b
(b)
832059.fig.002c
(c)
832059.fig.002d
(d)
Figure 2: Dose response curves. PC3 and DU145 cells were exposed to either (a) and (c) or (b) and (d) for 72 hours, followed by the resazurin assay to determine cell viability (mean ± SD, ).