VEGFA and non-small cell lung carcinoma: Vascular endothelial growth factor (VEGF) and the platelet-derived growth factor (PDGF) signalling pathways are critical components in the pathogenesis of non-small cell lung cancer (NSCLC) (Koukourakis et al, 1997; Yuan et al, 2001; Shikada et al, 2005).