Figure 1

Butein effect on viabilities of different breast cancer cell lines. (A) Butein structure. (B) Butein inhibition of breast cancer cell viabilities. Breast cancer cells were treated with different doses of butein (0-100 μg/ml) for 48 hours and then subjected to MTT assays. Red bars indicate 50% of cell viability. Experiments were done in quadruplicate and repeated three times independently. Bars indicate the mean ± SEM.