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Nrf2/Notch signal pathways contributing to ON/OFF regulation in sustained livre regeneration

Research Project

Project/Area Number 18K06042
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 42040:Laboratory animal science-related
Research InstitutionYamazaki University of Animal Nursing

Principal Investigator

Umemura Takashi  ヤマザキ動物看護大学, 動物看護学部, 教授 (50185071)

Co-Investigator(Kenkyū-buntansha) 高須 伸二  国立医薬品食品衛生研究所, 病理部, 主任研究官 (00597891)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords持続性肝再生 / Notchシグナル / Nrf2 / 肝再生結節 / Notch / 増殖シグナル / Notch4 / 肝再生
Outline of Final Research Achievements

The aim of the present study was to clarify Nrf2/Notch signal pathways contributing to ON/OFF regulation in sustained liver regeneration using the established animal model of nodular regenerative hepatocytes. Activation of Notch pathway by Notch4 may contribute to the disruption of signal regulating sustained liver regeneration and the possible participation of Nrf2 in these pathways. In addition, there may be different points affected by Nrf2 between in transient and in sustained liver regeneration.

Academic Significance and Societal Importance of the Research Achievements

慢性肝炎や続発する肝腫瘍で生じている持続的な肝再生刺激の分子メカニズムの理解は臨床的には大変重要である。慢性的な肝障害下で生じる持続性増殖刺激においてはON/OFF制御の状態自体も不明であり、急性刺激で明らかとなりつつあるNrf2によるNotchシグナルへの制御機構の存在も未だ明らかとなっていない。本研究により、慢性肝障害により誘発される持続性肝再生シグナルにおけるON/OFF制御の実態と、それに関与するNrf2によるNotchシグナル制御機構の一部を解明したことは、慢性疾患から発症する腫瘍予防戦略に大きな道筋がついた。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (2 results)

All 2021 2019

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (1 results)

  • [Journal Article] Molecular Pathological Differences in Global Gene Expression between Two Sustained Proliferative Lesions, Nodular Regenerative Hepatocellular Hyperplasia and Hepatocellular Adenoma, in Mice.2019

    • Author(s)
      Takasu S, Yokoo Y, Ishii Y, Kijima A, Ogawa K, Umemura T.
    • Journal Title

      Toxicolic Pathology

      Volume: 47 Issue: 1 Pages: 44-52

    • DOI

      10.1177/0192623318810200

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 急性肝再生過程におけるON/OFF制御へのNrf2の関与2021

    • Author(s)
      高須伸二,松本佳奈,石井雄二,小川久美子,梅村隆志
    • Organizer
      第37回日本毒性病理学会学術集会
    • Related Report
      2020 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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