Application of whole-organ tissue engineering in hepatology
Open accessAbstract
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.
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Translating dLECM hydrogels from bench to bedside faces multiple tangible translational challenges beyond method standardization.
“Translating dLECM hydrogels from the bench to the bedside faces multiple tangible translational challenges beyond method standardization [8].”
From From scaffold to function: A systematic review on dLECM-based hydrogels for liver tissue engineering — Fabrication, properties, and translational applications (2026) · cites this paper as [8]
The “Moving towards clinical trials” section identifies multiple barriers beyond standardizing methods, including scaling grafts to clinically applicable dimensions and achieving in vivo viability and function. But those barriers are discussed for decellularized whole-liver grafts, not dLECM hydrogels; the paper does not establish that they apply to hydrogels specifically. (LLM, conf=0.84)
Experimental — accuracy not yet measureddLECM was first introduced in rats by Uygun and colleagues using a perfusion-based method.
“First introduced in rats by Uygun and colleagues using a perfusion-based method, dLECM has since been adapted across species and models [8].”
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Cites
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- Authors
- Uygun, B. E., Yarmush, M. L., & Uygun, K.
- Affiliations
- Harvard University (US)
- Corresponding author
- Uygun, Korkut
- Venue
- Nature Reviews Gastroenterology & Hepatology
- Published
- 2012-08-14
- Volume
- 9
- Issue
- 12
- Pages
- 738-744
- ISSN
- 1759-5045 (ISSN-L)
- 1759-5053
- PMC
- PMC3732057
- OpenAlex
- W2044046384
- Cited by
- 76
- References
- 5
- Citations by year
- 2025: 6 · 2024: 3 · 2023: 6 · 2022: 2 · 2021: 6 · 2020: 3 · 2019: 8 · 2018: 4 · 2017: 8 · 2016: 8 · 2015: 11 · 2014: 8 · 2013: 3
- FWCI
- 1.36
- Type
- journal article
- Language
- en
- Open access
- green
- europepmc.org
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature Reviews Gastroenterology & Hepatology (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Science Foundation
- Shriners Hospitals for Children
- National Institute of Diabetes and Digestive and Kidney Diseases (K99DK088962, R01DK084053, R01DK096075R01, R01DK096075, R00DK088962)
- Topics
- Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
- Physical Sciences › Engineering › Biomedical Engineering › 3D Printing in Biomedical Research
- Health Sciences › Medicine › Hepatology › Liver physiology and pathology
- Keywords
- liver regeneration, decellularization, recellularization, donor liver shortage, hepatocyte repopulation, extracellular matrix, vascularization, organ transplantation, hemocompatibility, cell seeding
- MeSH terms
- Animals, Disease Models, Animal, Extracellular Matrix, Gastroenterology, Liver, Microcirculation, Liver Failure, Hepatocytes, Tissue Engineering, Mice
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