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Examination of the therapeutic effect of allogeneic liver organoids on a medium-sized animal liver cirrhosis model

Research Project

Project/Area Number 19H03733
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 55020:Digestive surgery-related
Research InstitutionYokohama City University

Principal Investigator

MURATA Soichiro  横浜市立大学, 医学研究科, 客員准教授 (40436275)

Co-Investigator(Kenkyū-buntansha) 田所 友美  横浜市立大学, 医学部, 助教 (20507644)
谷口 英樹  東京大学, 医科学研究所, 教授 (70292555)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Keywordsオルガノイド / 肝硬変 / 同種 / iPS細胞
Outline of Research at the Start

我々はiPS細胞から分化誘導した肝内胚葉細胞、血管内皮細胞、間葉系細胞を3D培養した肝オルガノイドを肝臓表面に移植する手法を開発中である。肝硬変患者の肝表面に組織移植を行う為には安全な剥離法、自己組織化を高める被覆剤の開発が必要である。本研究ではマウス、ラット等を用いた移植手技の確立後、中型動物での検討を行う。また従来の異種移植では拒絶反応のため長期的な生着が困難であったため、中型動物の同種肝オルガノイド移植による肝硬変の長期的治療効果を確認する。

Outline of Final Research Achievements

Liver cirrhosis is a terminal image of chronic liver disease that develops due to various causes, and although there is no radical cure other than liver transplantation, there is an overwhelming shortage of donors. The purpose of this study is to establish a safe surgical technique in a cirrhosis model and to investigate the long-term therapeutic effect of allogeneic liver organoids on cirrhosis. We have established a method for inducing differentiation of endoderm cells, mesenchymal cells, and vascular endothelial cells using monkey iPS cells. Furthermore, we established a method for producing monkey iPS cell-derived hepatic organoids from three types of cells that have been induced to differentiate. Furthermore, monkey iPS cell-derived liver organoids were transplanted into a cynomolgus monkey liver cirrhosis model, and the therapeutic effect was examined. As a result, it was suggested that the transplanted individual had an effect of improving fibrosis.

Academic Significance and Societal Importance of the Research Achievements

肝硬変は様々な原因で発症する慢性肝疾患の終末像であり、肝移植以外に根治療法がないが、圧倒的なドナー不足の状態である。したがって、臓器移植に代わる治療法の開発は、多くの患者救済のために必須である。また、臓器不全症に対する待機的治療には莫大なコストを要することから、医療経済学的観点からもその開発ニーズが非常に高まっている。本研究成果により、肝臓オルガノイドを用いて臓器移植を行わずに肝硬変を治療出来ることが示唆され、ドナー不足解消による患者救済及び待機的治療継続によるコストを削減できる可能性が示され、社会的に重要な意義をゆうすると考えられた。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (7 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (2 results) (of which Int'l Joint Research: 1 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Serous Membrane Detachment with Ultrasonic Homogenizer Improves Engraftment of Fetal Liver to Liver Surface in a Rat Model of Cirrhosis.2021

    • Author(s)
      Kawakatsu-Hatada Y,Murata S,Mori A,Kimura K,Taniguchi H.
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 22 Issue: 21 Pages: 11589-11589

    • DOI

      10.3390/ijms222111589

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A novel orthotopic liver cancer model for creating human-like tumor microenvironment.2021

    • Author(s)
      Qiu R, Murata S, Cheng C, Mori A, Nie Y, Mikami S, Hasegawa S, Tadokoro T, Okamoto S, Taniguchi H.
    • Journal Title

      Cancers(Basel)

      Volume: 13 Issue: 16 Pages: 3997-3997

    • DOI

      10.3390/cancers13163997

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Novel liver fibrosis model in Macaca fascicularis induced by thioacetamide2020

    • Author(s)
      Megumi Matsuo, Soichiro Murata, Shunsuke Hasegawa, Yumi Hatada, Masayuki Ohtsuka, Hideki Taniguchi
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 2450-2450

    • DOI

      10.1038/s41598-020-58739-4

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Transplantation of fetal liver tissue coated by ultra-purified alginate gel over liver improves hepatic function in the cirrhosis rat model2020

    • Author(s)
      Rong Qiu, Soichiro Murata, Katsutomo Oshiro, Yumi Hatada, Hideki Taniguchi
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 8231-8231

    • DOI

      10.1038/s41598-020-65069-y

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 肝硬変の肝表面へのオルガノイド移植を目指した被膜剥離法と被覆剤の検討2020

    • Author(s)
      岩砂克紀、森淳祐、皆田皓平、木村公大、 村田聡一郎、谷口英樹
    • Organizer
      第19回日本再生医療学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Effect of human induced pluripotent stem cell derived liver buds in a immunodeficient liver fibrotic rodents.2019

    • Author(s)
      Murata S, Okamoto S, Sekine K, Ueno Y, Tadokoro T, Taniguchi H
    • Organizer
      Asian-Pacific Hepato-Pancreato-Biliary Association(A-PHPBA), Soeul, Korea
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] 被覆固定剤2020

    • Inventor(s)
      谷口 英樹、村田 聡一郎
    • Industrial Property Rights Holder
      谷口 英樹、村田 聡一郎
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Related Report
      2019 Annual Research Report
    • Overseas

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Published: 2019-04-18   Modified: 2023-01-30  

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