In NSCLC, cancer cells produce vascular endothelial growth factor (VEGF), particularly two forms of this molecule, VEGF-A and VEGF-B, which leads to intense angiogenesis and a better blood supply for tumour cells, enabling their growth and proliferation (Bonnesen et al. 2009; Holm et al. 1996). Here, VEGFA is linked to non-small cell lung carcinoma.