PTK2 and cancer: Based on this Pubmed search, we found an overexpression of FAK at the protein level, as evaluated by IHC, in 80% of pancreatic adenocarcinoma, 72% of neuroblastoma, 70% of ovarian epithelial tumors, and many other cancers, including 52% of NSCLC and 69% of SCLC (Figure 2) [20,21,24,26,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109].