Han et al. have found that lncRNA LEIGC expression is significantly down-regulated in tumor tissues from human gastric cancer patients, which causes the decreased expression of E-cad and the increased expression of Vimentin, Twist, Slug, ZEB1, and Snail, as well as EMT and resistance of gastric cancer cells to 5-FU [155]. The gene discussed is SNAI1; the disease is gastric cancer.