TET2 and hepatocellular carcinoma: Then, we further assessed the chemosensitivity of Huh 7-MDR-Mock and Huh 7-MDR-TET2 cells, and as presented in Fig. 2I, exogenous TET2 overexpression in Huh 7-MDR cells re-sensitized HCC cells to 5-FU and oxaliplatin.