VEGFA and lung adenocarcinoma: Initially, to investigate the mechanism by which tumours develop resistance to VEGF inhibition, we orthotopically or intravenously injected immunodeficient mice with human MPM cell lines (Y-MESO-14 and EHMES-10 cells) or human lung adenocarcinoma cell lines (PC14PE6 and A549 cells) that highly express VEGF17, 18, 19, 20.