Mebendazole enhances MM cell apoptosis induced by WP1130 and daunorubicin (DNR). a LP1 and RPMI-8226 cells were treated with MBZ (0.1 µM) and WP1130 (1 µM) alone or in combination for 24 h, followed by IB assays for c-Maf, PARP and GAPDH. b The ratio of cleaved PARP to pro-PARP from a. c LP1 and RPMI-8226 cells were treated with MBZ (0.1 µM) and DNR (100 nM) alone or in combination for 24 h, followed by IB assays for c-Maf, PARP, and GAPDH. d The ratio of cleaved PARP to pro-PARP from c. **P < 0.01, ***P < 0.001