SNAI2 and hepatocellular carcinoma: To further elucidate the underlying molecular mechanism by which miR-630 suppresses HCC metastasis, we used publicly available databases, including TargetScan (http://www.targetscan.org/) and PicTar (http://pictar.mdc-berlin.de/) to search for the genes targeted by miR-630 and identified Slug (SNAI2) as one of the target genes (Figure 4A).