TfR protein expression of the three human pancreatic cancer cell lines (AsPC-1, BxPC-3, and MIAPaCa-2) determined by immunofluorescence staining with TSP-A01 indicated that MIAPaCa-2 showed the highest expression, followed by AsPC-1 and BxPC-3 (Fig 1). This evidence concerns the gene TFRC and familial pancreatic carcinoma.