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  • Title: Biliary epithelial cells from the liver of patients with primary biliary cirrhosis: isolation, characterization, and short-term culture.
    Author: Joplin R, Strain AJ, Neuberger JM.
    Journal: J Pathol; 1990 Nov; 162(3):255-60. PubMed ID: 2266463.
    Abstract:
    Since biliary epithelial cells of the middle-sized interlobular bile ducts are targets for lymphocyte-mediated damage in patients with primary biliary cirrhosis (PBC), we have developed a method for isolating and maintaining these cells in short-term tissue culture. Intrahepatic biliary epithelial cells were isolated from small segments of liver removed at the time of transplantation. Cells were separated from a collagenase digest by immunomagnetic separation using Dynabeads coupled to a monoclonal antibody (HEA 125) specific for a biliary epithelial cell surface antigen. The yield was approximately 3 x 10(5) cells/g of liver. The isolated cells were characterized morphologically and ultrastructurally using light and electron microscopy, and immunocytochemically using HEA 125 and anti-cytokeratin, anti-vimentin and anti-asialoglycoprotein receptor antibodies. By these criteria cells were judged to be identical to biliary epithelial cells from normal liver. The cells could be maintained in short-term tissue culture for up to 4 weeks without loss of biliary epithelial cell markers. Availability of interlobular biliary epithelial cells will be of value in future investigations of the pathogenetic mechanisms of PBC.
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