Adipose Tissue-Derived Stem Cells As A Regenerative Therapy for A Mouse Steatohepatitis-Induced Cirrhosis Model

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Cirrhosis is a chronic liver disease that impairs hepatic function and causes advanced fibrosis. Mesenchymal stem cells have gained recent popularity as a regenerative therapy since they possess immunomodulatory functions. We found that injected adipose tissue-derived stem cells (ADSCs) reside in the liver. Injection of ADSCs also restores albumin expression in hepatic parenchymal cells and ameliorates fibrosis in a nonalcoholic steatohepatitis model of cirrhosis in mice. Gene expression analysis of the liver identifies up- and down-regulation of genes, indicating regeneration/repair and anti-inflammatory processes following ADSC injection. ADSC treatment also decreases the number of intrahepatic infiltrating CD11b+ and Gr-1+ cells and reduces the ratio of CD8+/CD4+ cells in hepatic inflammatory cells. This is consistent with down-regulation of genes in hepatic inflammatory cells related to antigen presentation and helper T-cell activation. Conclusion: These results suggest that ADSC therapy is beneficial in cirrhosis, as it can repair and restore the function of the impaired liver. (Hepatology 2013;53:1133–1142)

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