However, it is also well known that FAK can be activated by extracellular growth factors, including those released by lung cancer, such as bombesin, gastrin-related peptide (GRP), HGF, VEGF, TGF-β, HGF, and FGF [51,52,53,54,55,56,57,58,59]. This evidence concerns the gene TGFB1 and lung cancer.