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Invasive pancreatic ductal adenocarcinoma is thought to originate from duct-like lesions called pancreatic intraepithelial neoplasia (PanIN). PanINs progress from low grade (PanIN-1) to high grade (PanIN-3) as the cells attain molecular alterations to key regulatory genes, including activating mutations in the KRAS protooncogene. Despite a well-documented progression model, our knowledge of the initiator...
Mist1 is a basic helix-loop-helix (bHLH) transcription factor that is important to the proper development of the exocrine pancreas. The aim of this study was to investigate the role of Mist1 in modulating acinar cell proliferation.Ductal and acinar pancreatic cell lines were engineered to express an inducible Mist1 complementary DNA or to express a short hairpin RNA that targeted endogenous Mist1...
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