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Investigation of a novel mechanisms for maintating homeostasis in connective tissue

Research Project

Project/Area Number 18K06913
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 48040:Medical biochemistry-related
Research InstitutionWakayama Medical University

Principal Investigator

Morita Tsuyoshi  和歌山県立医科大学, 医学部, 講師 (80403195)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords肝炎 / 線維化 / 結合組織 / thymosin / 肝臓 / コラーゲン / トランスジェニックマウス / がん / アクチン / 上皮間葉転換
Outline of Final Research Achievements

Excessive consumption of alcohol and infection with hepatic virus can cause hepatitis. Chronic hepatitis progresses to liver fibrosis, or cirrhosis, due to abnormal accumulation of collagen and other substances in the liver, and further to liver cancer, which leads to death at worst. In this study, we analyzed the role of thymosin-β4 protein in the process of liver fibrosis using thymosin-β4 gene transgenic mice. The results showed that thymosin-β4 is a protein that augments repair of the damaged liver, and that the progression to cirrhosis is more severe in the thymosin-β4-null mice.

Academic Significance and Societal Importance of the Research Achievements

これまでにもthymosin-β4が組織の線維化を抑制するという報告はあったが、そのメカニズムはほとんど明らかにされていなかった。本研究では、thymosin-β4 の遺伝子改変マウスを用いることで、内因性のthymosin-β4 が確かに肝臓の線維化を抑制していることを明確に示した。またその過程で、これまでに考えられてきた作用機序とは異なる新たなthymosin-β4 の働きを示すことができた。本研究成果により、肝硬変の発症メカニズムがより深く理解され、また、将来的にはthymosin-β4 をターゲットとした治療薬の開発にもつながると期待している。

Report

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

    (7 results)

All 2021 2020 2019 2018 Other

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

  • [Journal Article] ケラチンおよびコラーゲンの簡易サンプリング法~身近な試料を用いたSDS-PAGE~2021

    • Author(s)
      森田強、茂里康、多中良栄
    • Journal Title

      Seibutsu-kogaku Kaishi

      Volume: 99 Issue: 2 Pages: 90-91

    • DOI

      10.34565/seibutsukogaku.99.2_90

    • NAID

      130007990762

    • ISSN
      0919-3758, 2435-8630
    • Year and Date
      2021-02-25
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ムーンライティングタンパク質サイモシンß4の多彩な機能2020

    • Author(s)
      森田強
    • Journal Title

      KAGAKU TO SEIBUTSU

      Volume: 58 Issue: 12 Pages: 649-651

    • DOI

      10.1271/kagakutoseibutsu.58.649

    • NAID

      130008123265

    • ISSN
      0453-073X, 1883-6852
    • Year and Date
      2020-12-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thymosin-beta4 is a Central Mediator of Transforming Growth Factor-beta/Myocardin-Related Transcription Factor Axis in Tumor Progression.2018

    • Author(s)
      Morita T., and Hayashi K.
    • Journal Title

      Molecular Cancer Research

      Volume: in press Issue: 5 Pages: 880-893

    • DOI

      10.1158/1541-7786.mcr-17-0715

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] ACTR5は筋分化および横紋筋肉腫の形成を抑制する2020

    • Author(s)
      森田強
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 肝線維化におけるthymosin-β4の役割2019

    • Author(s)
      森田強
    • Organizer
      第92回日本生化学会大会
    • Related Report
      2019 Research-status Report
  • [Book] 実験医学 2018年4月号(分担執筆, 範囲:細胞骨格による転写制御 ーアクチンダイナミクスによる転写調節と細胞機能ー)2018

    • Author(s)
      井上 尊生
    • Total Pages
      141
    • Publisher
      羊土社
    • ISBN
      9784758125062
    • Related Report
      2018 Research-status Report
  • [Remarks] 研究内容:森田 強

    • URL

      http://www.wakayama-med.ac.jp/med/lasbiology1/morita/blog.html

    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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