Emerging evidence shows that KCNQ1OT1 functions as a competing endogenous RNA sponge for several miRNAs in HCC, such as miR-148a-3p [65], miR-149 [66], miR-29a-3p [67], miR-7-5p [68], and miR-504 [69]. This evidence concerns the gene KCNQ1OT1 and hepatocellular carcinoma.