CMTR1 and gastric cancer: Moreover, the decrease or increase in CD44v6 splicing, CD44v6/CD44s ratio, and CD44v6 expression in SNORA37 silencing or over-expressing gastric cancer cells were restored by transfecting expression vector or shRNA specific for CMTR1 or ELAVL1 (Fig. 6g, h and Additional file 1: Fig. S7d-f).