TGF-beta alters liver regeneration and ductular reaction via Notch signaling, thus contributing to HBV-associated fibrogenesis
H Weng, L Ciuclan, C Meyer, T Huang, PR Mertens, MV Singer, S Dooley · Zeitschrift für Gastroenterologie · 2009 · Heft 01
Bibliografische Angaben
Zusammenfassung
Hepatic progenitor cells (HPC) instead of normal hepatocytes become the main population of regenerative hepatocytes, promoting a periportal ductular reaction (DR), which may contribute to periportal fibrogenesis in chronic liver disease in association with HCV and NASH. We hypothesize that a TGF-b-Notch signaling dependent alteration of the replicative pathway of hepatocytes and a subsequent DR play a critical role in HBV associated fibrogenesis and cirrhosis. 105 biopsied liver tissues with chronic HBV infection were stained with cytokeratin-7 (CK7) to quantify DR and the number of HPCs, and with p21 to assess…