PTK7 and familial pancreatic carcinoma: PTK7 is reported to be overexpressed in pancreatic cancer, particularly in metastatic tumors, which exhibit a higher positivity rate (60%) compared to primary tumors (40%).22 Additionally, PTK7 expression is found in the stromal cells of pancreatic tumors,17,22 making it an attractive target for drug delivery in pancreatic cancer therapies.