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Nat Rev Gastroenterol Hepatol. 2017 May;14(5):296-304. doi: 10.1038/nrgastro.2017.12. Epub 2017 Mar 8.

Acinar cell plasticity and development of pancreatic ductal adenocarcinoma.

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Department of Cancer Biology, Room 306 Griffin Building, Mayo Clinic Comprehensive Cancer Center, Mayo Clinic, Jacksonville, Florida 32224, USA.


Acinar cells in the adult pancreas show high plasticity and can undergo transdifferentiation to a progenitor-like cell type with ductal characteristics. This process, termed acinar-to-ductal metaplasia (ADM), is an important feature facilitating pancreas regeneration after injury. Data from animal models show that cells that undergo ADM in response to oncogenic signalling are precursors for pancreatic intraepithelial neoplasia lesions, which can further progress to pancreatic ductal adenocarcinoma (PDAC). As human pancreatic adenocarcinoma is often diagnosed at a stage of metastatic disease, understanding the processes that lead to its initiation is important for the discovery of markers for early detection, as well as options that enable an early intervention. Here, the critical determinants of acinar cell plasticity are discussed, in addition to the intracellular and extracellular signalling events that drive acinar cell metaplasia and their contribution to development of PDAC.

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