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Vasculature reconstruction of decellularized liver scaffolds via gelatin‐based re‐endothelialization
Author(s) -
Meng Fanwei,
Almohanna Falah,
Altuhami Abdullah,
Assiri Abdallah M.,
Broering Dieter
Publication year - 2019
Publication title -
journal of biomedical materials research part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 150
eISSN - 1552-4965
pISSN - 1549-3296
DOI - 10.1002/jbm.a.36551
Subject(s) - decellularization , scaffold , biomedical engineering , materials science , tissue engineering , transplantation , perfusion , liver transplantation , gelatin , medicine , chemistry , surgery , biochemistry
Decellularized liver scaffolds based liver engineering is a promising approach toward developing functional liver surrogates. However, a major obstacle to long‐term transplantation is the hemocompatibility of the bioengineered liver surrogates. One approach to improve the hemocompatibility of engineered liver surrogates is re‐endothelialization. In the current study, immortalized endothelial cells were perfused for re‐endothelialization of decellularized rat liver scaffolds. When compared to the media‐based perfusion approach, gelatin hydrogels‐based perfusion significantly increased the number of cells that were retained in the decellularized liver scaffolds and the vascular lumen coverage ratio. Endothelial cells were lining along the vasculatures of the decellularized liver scaffolds and actively proliferating. Re‐endothelialization improved the blood retention ability of the liver scaffold vasculatures. Doppler ultrasound detected active blood flows within the re‐endothelialized liver scaffold transplants 8 days post‐transplantation. Our results strengthened the feasibility of developing bioengineered liver surrogates utilizing decellularized liver scaffolds. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 392–402, 2019.