We chose 1.1B4 cells that have been generated by electrofusion of human primary pancreatic islet cells to human pancreatic adenocarcinoma cells and express hIAPP20, instead of EndoC-βH1 cells that were derived from human fetal pancreas by SV40LT and human TERT transduction but virtually express no hIAPP21. Here, TERT is linked to pancreatic adenocarcinoma.