CSTF2 and hepatocellular carcinoma: Figures 6B–6C show that overexpression of CSTF2 evidently promoted the cell proliferation of Hep3B cells based on the CCk8 assay and colony-forming assay. Moreover, we confirmed the result in another HCC cell line sk-Hep1 cells (Supplementary Figure S3). In addition, the overexpression of CSTF2 also promoted cell migration and invasion in Hep3B cells by Transwell assays (Figure 6D).