SIRT1 is involved in the initiation, promotion, and progression of several malignant tumors including prostate cancer (Jung-Hynes et al., 2009), breast cancer (Jin et al., 2018), lung cancer (Han et al., 2013), leukemia (Chen and Bhatia, 2013), colon cancer (Lin and Fang, 2013), melanoma (Ohanna et al., 2014), and ovarian and gastric cancer (Han et al., 2013; Shuang et al., 2015). The gene discussed is SIRT1; the disease is gastric cancer.