STAT3 and cancer: Blessing et al. have been looking for drugs that induce autophagy in cancer cells to eliminate residual ovarian cancer cells after conventional surgery and chemotherapy; they found that crizotinib induced autophagy and mediated apoptosis in cancer cells by reducing the phosphorylation of STAT3 and Bcl-2 expression when treating ovarian cancer, which provided a new idea for ovarian cancer treatment (Blessing et al., 2020).