MTOR and breast neoplasm: In in vitro study of mice, the effects of fisetin led to prohibition of metastasis and invasiveness, induction of the apoptosis, and regulation of the phosphatidylinositol‐3‐kinase/protein kinase B/mammalian target of rapamycin pathway, whereas suppression of growth of breast tumors and enhancement of tumor cell apoptosis were observed in serum of tumor‐bearing mice (Sun et al., 2018).