DLEU2 and gastric cancer: miR-29A has been associated with the viability and proliferation of mesenchymal stem cell and gastric cancer cells [18,19] and DLEU2 is a putative tumour suppressor gene that hosts two miRNAs, miR-15A and miR-16-1 which are known to inhibit cell proliferation and the colony-forming ability of tumour cell lines, and to induce apoptosis [20–22].