• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Progenitor cell proliferation during liver regeneration induced by portal vein branch ligation

Research Project

Project/Area Number 16K07421
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Morphology/Structure
Research InstitutionShizuoka University

Principal Investigator

SHIOJIRI Nobuyoshi  静岡大学, 理学部, 教授 (70162568)

Research Collaborator ITO Masayuki  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords肝再生 / 肝前駆細胞 / 胆管 / TNFα / 門脈結紮 / モザイク / フラクタル / 肝幹細胞 / ノッチ / Cre-ERT2
Outline of Final Research Achievements

Liver regeneration was examined in mouse livers, which had portal vein branch ligation to left and median liver lobes. While ligated lobes were degenerated, liver regeneration, including hepatocyte growth, was detectable in nonligated liver lobes. Liver progenitor cell proliferation was noted around portal vein branches of ligated and nonligated lobes. In portal vein branch ligation experiments with TNFR1-knockout mice, hepatocyte growth took place, but no liver progenitor cells remarkably proliferated. The data suggest that TNFa signaling plays an important role in progenitor proliferation during liver regeneration induced by portal vein branch ligation.

Academic Significance and Societal Importance of the Research Achievements

遺伝子欠失マウスを用いて特定の肝葉に行く門脈を結紮する実験を行い、その肝再生過程で肝前駆細胞の増殖はTNFαのシグナルを必要とするが、肝細胞の増殖には必要ではないことを示唆する結果を得た。この成果は、肝前駆細胞の増殖の仕組みを明らかにしただけでなく、従来知られる肝細胞の増殖の仕組みに疑問を呈するものである。またヒト肝疾患にともなう肝再生の仕組みや治療への応用に貢献するものでもある。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (8 results)

All 2019 2018 2017 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (2 results) Book (2 results) Remarks (3 results)

  • [Journal Article] 脊椎動物における肝臓構築の多様性と進化2019

    • Author(s)
      塩尻信義、太田考陽
    • Journal Title

      肝細胞研究会ホームページ「研究交流」(http://hepato.umin.jp/kouryu/kouryu49.html)

      Volume: -

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] spf-ashヘテロ型マウスを用いた種々の肝再生系における肝細胞増殖パターンの数理解析2018

    • Author(s)
      伊藤昌幸、小池亨、佐藤信一、塩尻信義
    • Organizer
      第25回肝細胞研究会(東京)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Gene Expression of Hepatic Stellate Cells during Liver Development2017

    • Author(s)
      Nowrin Islam Amin, Nobuyoshi Shiojiri
    • Organizer
      第24回肝細胞研究会(旭川)
    • Related Report
      2017 Research-status Report
  • [Book] 発生生物学-基礎から応用への展開-2019

    • Author(s)
      塩尻信義、弥益恭、加藤容子、中尾啓子共編著
    • Total Pages
      169
    • Publisher
      培風館
    • ISBN
      9784563078232
    • Related Report
      2018 Annual Research Report
  • [Book] 動物学の百科事典(分担執筆)2018

    • Author(s)
      日本動物学会
    • Total Pages
      770
    • Publisher
      丸善出版
    • ISBN
      9784621303092
    • Related Report
      2018 Annual Research Report
  • [Remarks] 塩尻・小池研のホームページ

    • URL

      https://liverlovers95.wixsite.com/shiojiri-koike-lab

    • Related Report
      2018 Annual Research Report
  • [Remarks] 塩尻・小池研究室のホームページ

    • URL

      http://liverlovers95.wixsite.com/shiojiri-koike-lab

    • Related Report
      2017 Research-status Report
  • [Remarks] 塩尻-小池研ホームページ

    • URL

      http://liverlovers95.wixsite.com/shiojiri-koike-lab

    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi