HPX and hepatocellular carcinoma: Functional assays demonstrated that HPX overexpression substantially inhibited cell proliferation, as evidenced by reduced colony formation in Bel-7402 (Figure 5E), HCC-LM3 (Figure 5F), and MHCC-97L (Figure 5G) cells along with decreased EdU incorporation in Bel-7402 (Figure 5H), HCC-LM3 (Figure 5I), and MHCC-97L (Figure 5J) cells.