LncRNA testis-specific transcript, Y-linked 15 (TTTY15) (Zheng et al., 2022), lncRNA DLGAP1 antisense RNA 2 (DLGAP1-AS2) (Lu et al., 2021), and lncRNA HOXC cluster antisense RNA 1(HOXC-AS1) (Zhou C. et al., 2020) are also overexpressed and can regulate the Wnt/β-catenin signalling pathway to promote EMT in GC. This evidence concerns the gene DLGAP1 and gastric cancer.