FIGURE 4.

The relative viability of MCF-7 cells incubated with various concentrations of tamoxifen. The viability of the treated cells is shown to be different from the control in the presence of different concentrations of tamoxifen (60–460 μM). The incubation time of the treatments was 48 h. It can be seen that 50% decrease in the viability of the cells can be achieved approximately with 250 μM of tamoxifen and this is utilized in conjunction with all treatments here for induction of apoptosis in the cells.