SNAI1 and hepatocellular carcinoma: Si-Snail groups enhanced the sensitivity of HCC cells against OXA as compared with the si-control groups by decreasing the IC50 values of OXA from 6.844 ± 1.108 μM to 3.411 ± 0.375 μM for HepG2 and from 5.339 ± 0.338 μM to 2.340 ± 0.304 μM for Bel-7402 (Fig. 5d, p < 0.05, respectively), implying the correlation of Snail and chemosensitivity.