Abstract
Liver cancer is one of the most malignant tumors with poor prognosis. Finding molecular markers that can predict prognosis is very important for the treatment of liver cancer. The present research is trying to find a new biomarker for human liver cancer. The analysis of abnormal expression genes and prognosis value on liver cancer by Gene Expression Profiling Interactive Analysis (GEPIA) database, the Pathology Atlas of the Human Protein Atlas (HPA), and Kaplan Meier-plotter (KM plotter), proved that B3GAT3 might be one of the important candidates. Furthermore, we investigated the specific role of B3GAT3 on liver cancer through the transfection of B3GAT3 siRNA in HepG2 cells. The proliferation was detected using CCK8, and migration and invasion were determined using Transwell assay. Our results proved that knockdown of B3GAT3 inhibited the proliferation, migration, and invasion. Moreover, B3GAT3 knockdown inhibited the expression of EMT related proteins, N-cad, Snail, and Twist, while promoting the expression of E-cad, suggesting that B3GAT3 knockdown reversed the EMT process of liver cancer cells. In conclusion, overexpressed B3GAT3 promotes the process of tumor EMT, which is an independent prognostic marker to predict the prognosis of liver cancer and might be a potential new target for liver cancer therapy.