Restoration of MEG3 expression suppresses tumor growth (54) and induces apoptosis in several human cancer cell lines, such as lung cancer A549 cells (62); SCC-15 and CAL27 tongue squamous cell carcinoma cell lines (63); and gastric cancer cell lines SGC7901, AGS, MGC803, MKN45, and BGC823 (59, 64). Here, MEG3 is linked to gastric cancer.