Recently, cancer susceptibility candidate 11 (CASC11), a kind of LncRNAs, was reported to be a promotor in oncogenesis, tumor development, and metastasis in a distinct variety of malignant tumors including colorectal cancer, gastric cancer, osteosarcoma, ovarian squamous cell carcinoma, and lung cancer.8, 9, 10, 11, 12. This evidence concerns the gene CASC11 and gastric cancer.