39 Some of lncRNAs were even indeed considered as biomarkers for diagnosis or prognosis of GC.  For instance, a metabolism‐related lncRNA, RP11‐555H23.1, was found to be a potential diagnostic biomarker in GC.40 Also, the expression level of H19 in plasma could be served as a biomarker for patients with GC.41 Due to the regulatory role of lncRNAs, exploring new lncRNA biomarkers can help to explain the initiation and progression mechanism of GC. Here, H19 is linked to gastric cancer.