SNAI3 and hepatocellular carcinoma: To verify the effects of SNAI3-AS1 and PEG10 on the biological function of HCC cells in vitro, the siRNAs were synthesized for knocking down the expression of SNAI3-AS1 and PEG10 (Fig. 2a), and SNAI3-AS1- and PEG10-overexpression plasmids were used for upregulation in HepG2 and MHCC-97H cell lines (Fig. 2b).