GAS5 and cancer: In this study, we profiled 19 selected cancer-associated lncRNAs based on several functional studies (H19, PTENP1-AS, GAS5, MEG3, TUG1, AP5M1, PANDA, MALAT1, CCAT1, LINC312, NBAT1, HOTAIR, ZEB2-AS1, BC032469, POU3F3, UCA1, NEAT1, FALEC, LINCROR) in gastric tumors and adjacent normal tissue samples.