ABCG2 and hepatocellular carcinoma: Furthermore, TCGA analysis results showed that PINK1 levels were positively correlated with that of ABCB1 and ABCG2 in HCC patients (Fig. 1g-h), and HIF-1α was positively correlated with ABCC1 and negatively with TOMM20 and TOMM70 (Supplementary Fig. S1f-1 h).