ALX4 and hepatocellular carcinoma: We demonstrated that, the inhibitory effects of inhibiting miR-1204 on the proliferation, migration, invasion, and EMT of Huh7 and SMMC-7721 cells were reversed by ALX4 knockdown (Supplementary Figures 2B–F), and these data implied that miR-1204 promoted the malignant biological behaviors of HCC cells via repressing ALX4.