PTK2 and liver cancer: The protein expression level of FAK was up-regulated in 40% (13/31) tumor tissues (Supplementary Figure 6), including Cholangio carcinoma, Lymphoid Neoplasm Diffuse Large B-cell Lymphoma, Head and Neck squamous cell carcinoma, Stomach adenocarcinoma (STAD), Pancreatic adenocarcinoma (PAAD), Thymoma (THYM), Esophageal carcinoma, and Liver cancer (LIHC) (Figure 7A, Supplementary Figures 6, 7).