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  • Title: [State of hepatocyte transplantation: a risk or a chance?].
    Author: Leckel K, Blaheta RA, Markus BH.
    Journal: Zentralbl Chir; 2003 Apr; 128(4):283-90. PubMed ID: 12700984.
    Abstract:
    Over the past few years, hepatocyte transplantation has been considered as an alternative method for orthotopic liver transplantation for the treatment of various liver diseases. Beside curative approach for genetic metabolic deficiencies (familial hypercholesterolemia, hemophilia, etc.), it could be a useful tool for bridging the waiting period until an appropriate donor organ is obtained. In preclinical animal studies, hepatocytes injected intraperitoneally, intraportally or into the spleen settle down in the diseased liver. This enables genetic modification to correct inborn metabolic deficiencies and improves survival in acute liver failure. In 1992, the first clinical transplantation of isolated hepatocytes in 10 patients was performed. In 1998, Fox and coworkers described the successful transplantation of allogeneic liver cells in a child with Crigler-Najjar syndrome. Accomplished studies of Strom et al. resp. Bilir et al. of the same year proved the effectiveness of liver cell transplantation for transient treatment of acute liver failure. Prerequisite of this cell-based therapeutic strategy is a sufficient amount of highly differentiated hepatocytes, hence, a well established in-vitro cell-culture technique is necessary to yield a reproducible number of proliferating hepatocytes and to preserve the physiological cell function. This review discusses the different experimental approaches regarding the cultivation of human hepatocytes and also the use of alternative cell sources (like animal hepatocytes, immortalized cells of human origin, progenitor cells from fetal human liver/liver stem cells) for hepatocyte transplantation.
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