PTK2 and cancer: In the present study, we observed that FAK expression was elevated in a broad range of somatic cancers, including astrocytic, breast, cervical, colorectal, endometrial, esophageal, gastric, head and neck, hepatocellular, laryngeal, lung, ovarian, pancreatic, prostate, lung, brain, skin, and thyroid cancers [8,15,16,30,60–70].