KDM4A and hepatocellular carcinoma: Consistently, KDM4A-AS1 was also overexpressed in HCC cell lines (Hep3B, Huh7, HepG2, HCCLM3, MHCC-97H, SK-Hep-1) compared to normal liver cells MIHA (P < 0.05, respectively, Supplementary Fig. 1).