Finally, in the HER2-positive GC cells xenotransplantation models, both lapatinib and APG-1252 monotherapy could delay tumor growth, while the combination therapy significantly suppressed tumor growth….Taken together, our data indicated that anti-HER2 agents could upregulate the expression of GSDME, and the combination of lapatinib and APG-1252 showed a synergistic antitumor effect against HER2-positive gastric cancer...