Then, the CCK-8 assay results revealed that Rad51 silencing significantly reduced the viability of SiHa and HCC-0214 cells, but the reduced cell viability due to Rad51 silencing was markedly reversed by the miR-125a inhibitor (P < 0.01, P < 0.001; Figure 5 a and b). Here, RAD51 is linked to hepatocellular carcinoma.