Shi C. et al. showed evidence that miR-670 could induce cell proliferation in hepatocellular carcinoma by targeting PROX1 (Shi and Xu, 2016), while our study predicted that it might play an important role in EC progression via targeting Potassium Voltage-Gated Channel Modifier Subfamily S Member 1 (KCNS1), which was also a DE mRNA associated with survival in our study. This evidence concerns the gene KCNS1 and hepatocellular carcinoma.