To examine doxorubicin-induced apoptosis, we measured the caspases 3/7 activities after 24-hour treatment with a range of concentrations (0.3, 0.7, 1.0, and 3.0 μM) of doxorubicin around the reported IC50 for breast cancer cells of 1.0 μM44. This evidence concerns the gene CASP3 and breast carcinoma.