Everolimus targets the phosphorylation of the PI3K/mTOR/Akt pathway at 48 and 72Â h. MCF-7, MCF-7:5C and MCF-7:2A cells were seeded in 6-well plates and treated with 25, 50 or 100 nM everolimus or vehicle. Cells were harvested at 48 and 72Â h and protein expression analyzed by western blot. Image represents three independent experiments. (PPT 674 kb