BCL2 and ovarian cancer: By inhibiting the Bcl-2 signaling pathway, several tumor suppressor miRNAs, including miR-142-5p, miR-335-5p, miR-146a-5p, and miR-137 have been confirmed to sensitize ovarian cancer cells to DDP (Li et al., 2017a,b; Liu R. et al., 2018; Li X. et al., 2019).