This document summarizes a study on the effect of resveratrol on human breast cancer MCF-7 cell lines. The study found that resveratrol inhibited the viability of MCF-7 cells in a dose-dependent manner, with an IC50 value of 125μM. Treatment with resveratrol induced apoptosis in the cells, as shown by DNA fragmentation, phosphatidylserine externalization, and morphological changes observed under electron microscopy. The apoptosis was further confirmed by the activation of apoptotic proteins like t-Bid and cleavage of α-fodrin. The study concludes that resveratrol shows promise as an anti-cancer agent for its ability to induce apoptosis in breast cancer cells.