To verify the role of Wnt1 in DLGAP1-AS2 mediated Wnt/β-catenin signaling, we employed two independent procedures to inhibit Wnt1 signaling in GC cells, which were Wnt1 knockdown and β-Catenin/TCF4 inhibition (LF3), respectively. The gene discussed is TCF4; the disease is gastric cancer.