TRPM2 and gastric cancer: In the last several years, the function roles of TRPM2-AS in many cancers have been identified, including gastric cancer, colorectal cancer, breast cancer, and non-small-cell lung cancer (Ma et al., 2017; Huang et al., 2019; Sun et al., 2019; Pan et al., 2020; Xiao et al., 2020).