期刊
NATURE REVIEWS GASTROENTEROLOGY & HEPATOLOGY
卷 9, 期 12, 页码 738-744出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/nrgastro.2012.140
关键词
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资金
- National Institutes of Health [R01DK084053, R01DK096075R01, K99DK088962]
- National Science Foundation [CBET 0853569]
- Shriners Hospitals for Children
Initially hailed as the ultimate solution to organ failure, engineering of vascularized tissues such as the liver has stalled because of the need for a well-structured circulatory system that can maintain the cells seeded inside the construct. A new approach has evolved to overcome this obstacle. Whole-organ decellularization is a method that retains most of the native vascular structures of the organ, providing microcirculatory support and structure, which can be anastomosed with the recipient circulation. The technique was first applied to the heart and then adapted for the liver. Several studies have shown that cells can be eliminated, the extracellular matrix and vasculature are reasonably preserved and, after repopulation with hepatocytes, these grafts can perform hepatic functions in vitro and in vivo. Progress is rapidly being made as researchers are addressing several key challenges to whole-organ tissue engineering, such as ensuring correct cell distribution, nonparenchymal cell seeding, blood compatibility, immunological concerns, and the source of cells and matrices. Uygun, B. E. et al. Nat. Rev. Gastroenterol. Hepatol. 9, 738-744 (2012); published online 14 August 2012; doi:10.1038/nrgastro.2012.140
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