Furthermore, hyperphosphorylation of FAK is responsible, to a certain extent, for cancer initiation and progression, which has been clarified but is not limit to small-cell lung carcinoma [41], hepatocellular carcinoma [42], oral cancer [43], prostate cancer [44], gastric cancer [45], and neuroblastoma [46]. The gene discussed is PTK2; the disease is hepatocellular carcinoma.