MEG3 and gastric cancer: H19 sponges miR-223p to enhance Snail expression and EMT process in gastric cancer (Gan et al. 2019) while combined detections of H19, MEG3 and miR-675-5p have been demonstrated to effectively distinguish gastric cancer from non-tumor samples with a specificity or sensitivity of > 85% in the clinic (Ghaedi et al. 2019).