The Effects of Cold Preservation Solutions Supplemented with UDCA and α-Lipoic Acid on the Viability and Function of Isolated Human Hepatocytes

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Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
Background
Liver transplantation is the only treatment for end-stage and genetic liver diseases. The main burden of this treatment is the shortage of both living and cadaveric liver donors. An alternative treatment is using liver cell transplantation, which can be obtained from unused livers for transplantation. These hepatocytes should be kept ready in viable and functional situation in a frozen state to be instantly used when they would be needed. In our previous experience, we had isolated hepatocytes from unused livers.
Objective
To find a preserving solution for increasing viability and function of the isolated hepatocytes that are stored to be transplanted.
Methods
9 cadaveric donor livers, which were not used for transplantation due to various causes such as severe steatosis, were selected to isolate hepatocytes. Various cold storage solutions were tried to find the best temperature for more viability and functionality for preservation of hepatocytes. University of Wisconsin (UW) solution and Williams E media were used as control media. 2 anti-apoptotic and antioxidative solutions, i.e., α-lipoic acid and ursodeoxycholic acid (UDCA), were used as cold preservatives solutions. The numbers of viable hepatocytes were estimated by trypan blue method; the functionality was assessed by the cells ability to produce urea.
Results
The highest number of viable and functional hepatocytes was obtained from freshly isolated cells. However, after preservation, the number of these viable hepatocytes and their functionality were not significantly different in cold storage solutions comparing to the control media used. Functionality of the isolated hepatocytes stored in UW with and without UCDA solution was similar to freshly isolated hepatocytes.
Conclusion
Preservatives with anti-apoptotic and antioxidant activity could not increase the number of viable hepatocytes. Functionality of cold storing hepatocytes could be preserved similar to freshly isolated hepatocytes by UW solution with and without UCDA.
Language:
English
Published:
International Journal of Organ Transplantation Medicine, Volume:10 Issue: 3, Summer 2019
Pages:
108 to 117
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