MEG3 and gastric cancer: In addition, tumor suppressor candidate 7 (TUSC7) [71], maternally expressed 3 (MEG3) [72], BM742401 [73], colon cancer-associated transcript 1 (CCAT1) [74], and multidrug resistant (MDR)-related and upregulated lncRNA (MRUL) [75] have been found to be differentially expressed between gastric cancer cells and normal gastric mucosal cells and affect the malignant phenotype of gastric cancer cells.