Moreover, tEx(D) administration resulted in the highest upregulation of the pro-apoptotic marker BIM and the lowest downregulation of the anti-apoptotic marker Bcl-xL, with the lowest expression of antioxidant enzymes, such as SOD2 and catalase, within tumor tissues derived from mouse gastric cancer xenograft models. The gene discussed is BCL2L1; the disease is gastric cancer.