Flavonoids for the Treatment of Breast Cancer, Present Status and Future Prospective

Breast Cancer is one of the most notorious cancer affecting women globally. Current therapies available for breast cancer treatment have certain limited efficacy; develop drug resistance and severe adverse effects. Thus, identifying novel therapies for treatment will reduce the devastating effect on cancer survivors. The exhilarating and fastgrowing studies on flavonoids have evidenced that it has the potential to inflect various antitumor activity and modulate various signal transduction pathways in carcinogenesis. Flavonoids also have been found to regulate cellular metabolism and oxidative stress, cell cycle progression, angiogenesis and metastasis, ultimately preventing the progression of the diseases. As per the reports, a flavonoid-rich diet appears to be the most potent and promising approach to abate the risk of cancer. Thus, now a day, these are the prime target for drug discovery research. Based on existing findings, it can be concluded that beyond the currently employed chemotherapeutics, natural products (like flavonoids) exhibit pleiotropic, multi-target activities and are budding as possible complementary chemopreventive molecules against breast cancer with fewer side effects than conventional therapy. In this review, we comprehensively highlight an outline of the multiple pleiotropic pharmacological effects of various major classes of flavonoids on breast cancer with their specific mechanisms underlying its anticancer effect.