GSTK1 and hepatocellular carcinoma: Cell proliferation ability was detected by CCK8 cell counting and the colony formation assay, which showed that HepG2 or HCC-LM3 cell proliferation was significantly inhibited following bexarotene treatment, then strengthened by GSTK1 overexpression or weakened by GSTK1 knockdown (Fig. 7E-H).