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Liver repopulation and correction of metabolic liver disease by transplanted adult mouse pancreatic cells.

ABSTRACT: The emergence of cells with hepatocellular properties in the adult pancreas has been described in several experimental models. To determine whether adult pancreas contains cells that can give rise to therapeutically useful and biochemically normal hepatocytes, we transplanted suspensions of wild-type mouse pancreatic cells into syngeneic recipients deficient in fumarylacetoacetate hydrolase and manifesting tyrosinemia. Four of 34 (12%) mutant mice analyzed were fully rescued by donor-derived cells and had normal liver function. Ten additional mice (29%) showed histological evidence of donor-derived hepatocytes in the liver. Previous work has suggested that pancreatic liver precursors reside within or close to pancreatic ducts. We therefore performed additional transplantations using either primary cell suspensions enriched for ducts or cultured ducts. Forty-four mutant mice were transplanted with cells enriched for pancreatic duct cells, but only three of the 34 (9%) recipients analyzed displayed donor-derived hepatocytes. In addition, 28 of the fumarylacetoacetate hydrolase-deficient mice were transplanted with cultured pancreatic duct cells, but no donor-derived hepatocytes were observed. Our results demonstrate for the first time that adult mouse pancreas contains hepatocyte progenitor cells capable of significant therapeutic liver reconstitution. However, contrary to previous reports, we were unable to detect these cells within the duct compartment.

SUBMITTER: Wang X

PROVIDER: S-EPMC1850315 | biostudies-literature | 2001 Feb

REPOSITORIES: biostudies-literature

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Liver repopulation and correction of metabolic liver disease by transplanted adult mouse pancreatic cells.

Wang X X Al-Dhalimy M M Lagasse E E Finegold M M Grompe M M

The American journal of pathology 20010201 2

The emergence of cells with hepatocellular properties in the adult pancreas has been described in several experimental models. To determine whether adult pancreas contains cells that can give rise to therapeutically useful and biochemically normal hepatocytes, we transplanted suspensions of wild-type mouse pancreatic cells into syngeneic recipients deficient in fumarylacetoacetate hydrolase and manifesting tyrosinemia. Four of 34 (12%) mutant mice analyzed were fully rescued by donor-derived cel ...[more]

PMID: 11159194

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Project description:Considerable progress has been made in developing antifibrotic agents and other strategies to treat liver fibrosis; however, significant long-term restoration of functional liver mass has not yet been achieved. Therefore, we investigated whether transplanted hepatic stem/progenitor cells can effectively repopulate the liver with advanced fibrosis/cirrhosis. Stem/progenitor cells derived from fetal livers or mature hepatocytes from DPPIV(+) F344 rats were transplanted into DPPIV(-) rats with thioacetamide (TAA)-induced fibrosis/cirrhosis; rats were sacrificed 1, 2, or 4 months later. Liver tissues were analyzed by histochemistry, hydroxyproline determination, reverse-transcription polymerase chain reaction (RT-PCR), and immunohistochemistry. After chronic TAA administration, DPPIV(-) F344 rats exhibited progressive fibrosis, cirrhosis, and severe hepatocyte damage. Besides stellate cell activation, increased numbers of stem/progenitor cells (Dlk-1(+), AFP(+), CD133(+), Sox-9(+), FoxJ1(+)) were observed. In conjunction with partial hepatectomy (PH), transplanted stem/progenitor cells engrafted, proliferated competitively compared to host hepatocytes, differentiated into hepatocytic and biliary epithelial cells, and generated new liver mass with extensive long-term liver repopulation (40.8 ± 10.3%). Remarkably, more than 20% liver repopulation was achieved in the absence of PH, associated with reduced fibrogenic activity (e.g., expression of alpha smooth muscle actin, platelet-derived growth factor receptor ?, desmin, vimentin, tissue inhibitor of metalloproteinase-1) and fibrosis (reduced collagen). Furthermore, hepatocytes can also replace liver mass with advanced fibrosis/cirrhosis, but to a lesser extent than fetal liver stem/progenitor cells.This study is a proof of principle demonstration that transplanted epithelial stem/progenitor cells can restore injured parenchyma in a liver environment with advanced fibrosis/cirrhosis and exhibit antifibrotic effects.

Dataset Information

Liver repopulation and correction of metabolic liver disease by transplanted adult mouse pancreatic cells.

Publications

Liver repopulation and correction of metabolic liver disease by transplanted adult mouse pancreatic cells.

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