H19 and hepatocellular carcinoma: Furthermore, PSEN1 can be directly targeted by miR-193a-3p, low expression of PSEN1 was negatively related to radiosensitivity of HCC cells, so the H19/miR-193a-3p/ PSEN1 axis can be used as a potential pathway to ameliorate the curative effect of radio‐therapies for HCC 103.