E2F7 and hepatocellular carcinoma: Moreover, our results showed that E2F7 expression was negatively correlated with miRNA-302a/d expression in both normal liver tissues (n = 34, R2 = 0.48 and 0.52, respectively, Fig. 6b) and HCC tumor biopsies (n = 154, R2 = 0.63 and 0.66, respectively, Fig. 6c).