Journal
JOURNAL OF TISSUE ENGINEERING AND REGENERATIVE MEDICINE
Volume 9, Issue 11, Pages E144-E151Publisher
WILEY
DOI: 10.1002/term.1662
Keywords
tissue engineering; decellularization; small-diameter vessel; high pressure; radial artery; xenotransplantaion
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Funding
- Research on Human Genome, Tissue Engineering from the Ministry of Health, Labour and Welfare
- Core Research of Evolutional Science and Technology from the Japan Science and Technology Agency (JST-CREST)
- Grants-in-Aid for Scientific Research [23300177] Funding Source: KAKEN
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Many types of decellularized tissues have been studied and some have been commercially used in clinics. In this study, small-diameter vascular grafts were made using HHP to decellularize porcine radial arteries. One decellularization method, high hydrostatic pressure (HHP), has been used to prepare the decellularized porcine tissues. Low-temperature treatment was effective in preserving collagen and collagen structures in decellularized porcine carotid arteries. The collagen and elastin structures and mechanical properties of HHP-decellularized radial arteries were similar to those of untreated radial arteries. Xenogeneic transplantation (into rats) was performed using HHP-decellularized radial arteries and an untreated porcine radial artery. Two weeks after transplantation into rat carotid arteries, the HHP-decellularized radial arteries were patent and without thrombosis. In addition, the luminal surface of each decellularized artery was covered by recipient endothelial cells and the arterial medium was fully infiltrated with recipient cells. Copyright (C) 2012 John Wiley & Sons, Ltd.
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