Some identified oncogenic lncRNAs overexpressed in gastric cancerous tissue, such as H19, HOTAIR, and MALAT1, whereas others are expressed in the tissue from gastric carcinoma at a low level, such as LincRNA-p21, LINC00261, CTLSP4 and SPRY4-IT1. This evidence concerns the gene SPRY4 and gastric carcinoma.