Figure 1. Sensitivity of ovarian cancer cell lines to PARP inhibitors. (A) Western blotting images of BRCA1 protein levels in UWB1.289 and SNU-251 cells. (B) BRCA1 protein levels in A2780 and SKOV3 cells were tested by western blotting assays. (C, D) Sensitivity of olaparib and AG14361 to ovarian cancer cell lines were represented by the IC50 values.