Several studies have indicated that CASC15 expression was associated with different human diseases, including neuroblastoma (Russell et al., 2015), hepatocellular carcinoma (He, Zhang, et al., 2017), acute leukemia (Fernando et al., 2017), and gastric cancer (Yao et al., 2017; Yuan et al., 2012). This evidence concerns the gene CASC15 and gastric cancer.