RGMB and lung adenocarcinoma: To further examine the potential relationship between lncRGMB-AS1 and RGMB in lung adenocarcinoma cells, the pcDNA3.1 (+) / RGMB vector was transfected into A549 and SPC-A-1 cells (RGMB group), and the effect was compared with that of transfection with siRNA against lncRNA RGMB-AS1.