CCND1 and gastric cancer: In several cancers, including colorectal cancer, prostate cancer, esophageal cancer, lung cancer and gastric cancer, lncRNA SNHG7 has been known as a potent oncogene by targeting GALNT1, Cyclin D1, FAIM2, p15 and p16 (She et al., 2016, 2018; Wang et al., 2017; Li et al., 2018; Qi et al., 2018; Xu et al., 2018).