We detected both receptor chains participating in the type-II-IL-4-receptor (140 kDa IL-4Rα and 47 kDa IL13Rα1) in 7 different pancreatic cancer cell lines, derived from both pancreatic primaries (BxPC-3, MIAPaCa-2, PANC-1) as well as from metastases (AsPC-1, Capan-1, COLO-357, T3M4) [23]. The gene discussed is IL13RA1; the disease is familial pancreatic carcinoma.