CDKN2B-AS1 and gastric cancer: In this study, we identified the higher expression of lncRNA ANRIL in gastric cancer tissues than in corresponding non-tumor tissues, and it was also up-regulated in MKN-45 and SGC-7901 cells compared with gastric epithelial cell GES-1 in vitro, indicating that the abnormal expression of ANRIL in gastric cancer could be a candidate biomarker in gastric cancer diagnosis.