VEGFA and non-small cell lung carcinoma: Having ameliorated prognosis of patients with advanced non-squamous NSCLC, Bevacizumab, a recombinant humanized IgG1 monoclonal antibody binding with vascular endothelial growth factor, has become the focus of therapeutic intervention to block tumor angiogenesis and elevate the blood level of chemotherapeutic drug by promoting tumor vascular stabilization [8–10].