Isolation, Culture, and Transplantation of Intrahepatic Biliary Epithelial Cells and Oval Cells

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Abstract
Recent advances made in the isolation, culture, and transplantation of defined populations of intrahepatic biliary epithelial cells and oval cells have permitted direct analysis of the functions, growth properties, and differentiation potential of these respective cell types in their untransformed or transformed states. This review provides a current and comprehensive examination of the various approaches that have been taken to isolate and culture intrahepatic biliary epithelial cells from normal and cholestatic liver and oval cells from preneoplastic liver. Emphasis is placed on comparing the phenotypic features and growth properties of these various biliary cell types in vitro as well as on describing their transplantation into ectopic tissue sites. In addition, the oval cell is evaluated in terms of its potential role as a ‘facultative stem cell’ during hepatocarcinogenesis.

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