Fig. 2

Effect of BRCA1 and BRCA2 siRNA on androgen-independent prostate cancer cells. A and B. Effect of siRNA on BRCA1 and BRCA2 expression in PC-3 and LNCaP-LA cells. Mock transfected cells (M) or cells transfected with BRCA1 (B1) or BRCA2 (B2) siRNA or negative control siRNA (N) were incubated for 48 h before harvesting for real-time polymerase chain reaction (A) and western blotting (B). Values are expressed as means ± standard deviations (SD) (n = 3). **P < 0.01 vs. negative (N). C Following transfection, PC-3, and LNCaP-LA cells were incubated in the medium. After 48 h, the cells were cultured in a medium with or without olaparib (10 µM). After 72 h (PC-3 cells) and 96 h (LNCaP-LA cells), the number of viable cells was evaluated using an MTS assay. Values are expressed as mean ± SD (n = 4). *p < 0.05. Ola; olaparib