Development of humanized-liver mice using hepatocyte derived from isolated liver tissue from recipient or donor of living donor liver transplantation

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In this study, we tried for development of humanized-liver mice in which the liver is reconstitute with human hepatocyte derived from isolated liver tissue from recipient or donor of living donor liver transplantation. We demonstrated that, in identical hepatocyte derived from one recipient, freshly (non-freezing) hepatocytes were most effective engrafted in mouse liver compared with hepatocytes refrigerated at a temperature of 4 degrees overnight or freeze-stocked hepatocytes. On the other hand, there is no correlation between cell viability at isolation of hepatocyte and human albumin level in humanized-liver mice. These results indicated that freshly hepatocyte is useful for development of humanized-liver mice, and improvement of freezing method for hepatocyte may lead to effective development of humanized-liver mice.