Transplantation of bioengineered liver capable of extended function in a preclinical liver failure model

Hisanobu Higashi, Hiroshi Yagi, Kohei Kuroda, Kazuki Tajima, Hideaki Kojima, Kotaro Nishi, Toshinori Morisaku, Kazuya Hirukawa, Kazumasa Fukuda, Kentaro Matsubara, Minoru Kitago, Masahiro Shinoda, Hideaki Obara, Shungo Adachi, Kumiko Nishimura, Tohru Natsume, Masatoshi Tomi, Alejandro Soto-Gutierrez, Yuko Kitagawa

研究成果: Article査読


Unlimited organ availability would represent a paradigm shift in transplantation. Long-term in vivo engraftment and function of scaled-up bioengineered liver grafts have not been previously reported. In this study, we describe a human-scale transplantable liver graft engineered on a porcine liver-derived scaffold. We repopulated the scaffold parenchyma with primary hepatocytes and the vascular system with endothelial cells. For in vivo functional testing, we performed auxiliary transplantation of the repopulated scaffold in pigs with induced liver failure. It was observed that the auxiliary bioengineered liver graft improved liver function for 28 days and exhibited upregulation of liver-specific genes. This study is the first of its kind to present 28 days of posttransplant evaluation of a bioengineered liver graft using a preclinical large animal model. Furthermore, it provides definitive evidence for the feasibility of engineering human-scale transplantable liver grafts for clinical applications.

ジャーナルAmerican Journal of Transplantation
出版ステータスPublished - 2022 3月

ASJC Scopus subject areas

  • 免疫アレルギー学
  • 移植
  • 薬理学(医学)


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