Figure 2: Breast cancer cell sensitivity to chemotherapeutic drugs. Breast cancer MDA-MB-231, MDA-MB-468, and MCF-7 cell lines were treated with staurosporine at 2 μM (A), etoposide at 100 μM (B), Taxol at 10 μM (C), and cisplatin at 10 μM (D). Cell viability was assessed by MTT assay at 24, 48, and 72 hrs post drug treatment. Result of three independent experiments +/- SEM.