MUC1 and familial pancreatic carcinoma: The commercial anti-MUC1-NT antibody (epitope: DTRP in the tandem repeats) detected MUC1-N protein in pancreatic cancer cells, with the highest expression of MUC1-N in Capan-2 and CFPAC-1, followed by PANC-1 cells, and the lower extend in Mia-Paca-2 and PATU-8988, but not detected in SW1990 and Normal pancreatic duct cell line hTERT-HPNE cells.