Gan et al. (2019) revealed that KIF2C has a carcinogenic effect in non-small cell lung cancer and is negatively regulated by miR-325-3p. Yang et al. (2020) showed that circRGNEF promotes the occurrence and development of bladder cancer by directly targeting miR-548 and upregulating the expression of KIF2C. The gene discussed is KIF2C; the disease is urinary bladder cancer.