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Maintenance of Cold-Preserved Porcine Hepatocyte Function With UW Solution and Ascorbic Acid-2 Glucoside

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Normal human hepatocytes are an ideal source of liver-targeted cell therapies, such as hepatocyte transplantation and bioartificial livers, but availability of human donor livers for liver cell isolation is severely limited. To effectively utilize scarce donor organs for cell therapies, it is of extreme importance to establish an efficient isolation technique and an effective cold preservation solution for transportation of isolated cells. A lateral segment of the liver was surgically resected from pigs weighing 10 kg and a four-step collagenase and dispase digestion was conducted. Isolated hepatocytes were subjected to 8-h cold storage on ice. The following preservation solutions were tested: 1) University of Wisconsin (UW) solution, 2) UW with 100 μg/ml of ascorbic acid-2 glucoside (AA2G), 3) 100% fetal bovine serum (FBS), and 4) Dulbecco’s modified Eagle’s medium (DMEM) supplemented with 100% FBS. The mean viability of porcine hepatocytes was 95.5 ± 2.5% when isolated in three independent experiments. Viability, plating efficiency, membrane stability, and ammonia metabolic capacity of cold-preserved hepatocytes were significantly better maintained by the use of UW solution. When AA2G (100 μg/ml) was combined with UW solution, such parameters were further improved. It was explained by inhibition of caspase-3 activation and retention of ATP at high levels of hepatocytes preserved with UW solution containing AA2G. The present work demonstrates that a combination of UW solution with AA2G (100 μg/ml) would be a useful cold preservation means for the development of cell therapies.
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Keywords: Ascorbic acid-2 glucoside; Cold preservation; Hepatocytes; University of Wisconsin solution

Document Type: Research Article

Affiliations: 1: *Division of Gastroenterology, Department of Internal Medicine, Kawasaki Medical School, 577 Matsushima, Kurashiki 701-0192 Japan 2: †Department of Surgery and Okayama University Medical School, 2-5-1 Shikata-cho, Okayama 700-8558, Japan 3: ‡Department of Cell Biology, Okayama University Medical School, 2-5-1 Shikata-cho, Okayama 700-8558, Japan 4: §Tissue Engineering Research Center, The National Institute of Advanced Industrial Science and Technology, 1-1-4 Higashi, Tsukubashi, Ibaragi 305-8562, Japan 5: ¶Animal Center for Medical Research, Okayama University Medical School, 2-5-1 Shikata-cho, Okayama 700-8558, Japan 6: #Department of Immunochemistry, Faculty of Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Okayama 700-8530, Japan

Publication date: 2002-12-01

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  • Cell Transplantation publishes original, peer-reviewed research and review articles on the subject of cell transplantation and its application to human diseases. To ensure high-quality contributions from all areas of transplantation, separate section editors and editorial boards have been established. Articles deal with a wide range of topics including physiological, medical, preclinical, tissue engineering, and device-oriented aspects of transplantation of nervous system, endocrine, growth factor-secreting, bone marrow, epithelial, endothelial, and genetically engineered cells, among others. Basic clinical studies and immunological research papers are also featured. To provide complete coverage of this revolutionary field, Cell Transplantation will report on relevant technological advances, and ethical and regulatory considerations of cell transplants. Cell Transplantation is now an Open Access journal starting with volume 18 in 2009, and therefore there will be an inexpensive publication charge, which is dependent on the number of pages, in addition to the charge for color figures. This will allow work to be disseminated to a wider audience and also entitle the corresponding author to a free PDF, as well as prepublication of an unedited version of the manuscript.

    Cell Transplantation is now being published by SAGE. Please visit their website for the most recent issues.

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