TY - JOUR T1 - Down-regulation of Survivin by BIX-01294 Pretreatment Overcomes Resistance of Hepatocellular Carcinoma Cells to TRAIL JF - Anticancer Research JO - Anticancer Res SP - 3571 LP - 3578 DO - 10.21873/anticanres.13503 VL - 39 IS - 7 AU - YENA NAMGUNG AU - SO YOUNG KIM AU - INKI KIM Y1 - 2019/07/01 UR - http://ar.iiarjournals.org/content/39/7/3571.abstract N2 - Background/Aim: Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a cancer-selective, cell-death-inducing agent with little toxicity to normal cells. However, various human cancers and cancer cell lines have been reported to be resistant to TRAIL. Molecular clarification of resistance mechanism is needed. Materials and Methods: Compound screening, proliferation assays, western blotting, and flow cytometry were used to examine the sensitizer activity of methyl transferase inhibitor BIX-01294 in combination with TRAIL, in hepatocellular carcinoma (HCC) cells. RNA sequencing analysis and single guide (sg)RNA-mediated gene deletion were used to investigate the role of survivin in sensitization. Results: In HCC cells, BIX-01294 enhanced TRAIL sensitivity by reducing survivin expression at the RNA level. Small interference RNA-mediated gene knockdown demonstrated the mechanism of sensitization to be via the reduction of survivin. Conclusion: Euchromatin histone methyltransferase 2 (EHMT2) inhibition by BIX-01294 may be a potent anti-tumor therapeutic strategy for human HCC. ER -