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

HSF-1 is indispensable for injured optic nerve regeneration.

Research Project

Project/Area Number 20K05725
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 37020:Chemistry and chemical methodology of biomolecules-related
Research InstitutionKanazawa University

Principal Investigator

Sugitani Kayo  金沢大学, 保健学系, 准教授 (20162258)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordszebrafish / optic nerve regeneration / retina / transglutaminase 2 / heat shock factor 1 / Yamanaka factors / reprgramming / antiapoptosis / Transglutaminase2 / HSF1 / Klf4 / Sox2 / Heat shock factor 1 / sox2 / klf4 / oct4 / optic nerve injury / Yamanaka factor / FXIII-A / Oct3/4 / HSF-1 / regeneration
Outline of Research at the Start

魚類では中枢神経の優れた再生・治癒能力が認められる。そのため中枢神経の一つである視神経を切断し損傷させても、中枢神経軸索の再伸長が見られ視神経は完全に再生し視覚機能は回復する。本研究ではゼブラフィッシュの視神経損傷モデルを用い、その視神経再生過程において網膜で発現が増加する再生関連分子に着目した結果、最も早い発現増加が認められたのはHeat shock factor 1 (HSF-1)であった。本申請では、視神経損傷後のごく初期の段階に見られるHSF-1発現が、再生・修復のカスケード反応にどのような役割を果たすのかについて解明を目指す。

Outline of Final Research Achievements

Unlike in mammals, fish central nervous system neurons can regrow axons and restore their function after nerve injury. In this study, we used a zebrafish optic nerve injury model to analyze molecules induced during the acute phase (<24 hours) of the regenerative process. The results revealed that the three Yamanaka factors, klf 4, oct 4, and sox 2, are activated in the damaged retina within a few hours. This activation required increased expression of HSF1 in the retina. Early expression of HSF1 was also important for avoiding apoptosis. Further, activation of HSF1 required immediate upregulation of Transglutaminase 2 in the damaged retina. Expression of these molecules may avoid neuronal damage after optic nerve injury, and expression of Yamanaka factors may contribute to induction of reprogramming to form new optic nerve.

Academic Significance and Societal Importance of the Research Achievements

魚類の網膜-視神経-視蓋からなる視覚系は,中枢神経軸索再生のモデルとしてよく研究されており基礎的データの蓄積が大きい。本研究により神経軸索の再生あるいは創傷治癒のスイッチを握るかもしれない分子の活性化機構が明らかとなれば,中枢神経組織の損傷直後に発現誘導される急性相反応物質の生理学的意義の解明に繋がると考えられる。また,この実験系では山中ファクターの誘導が視神経クラッシュによって自然な治癒過程として網膜で起こるため、本研究が進展すれば,ヒトの脊髄損傷など中枢神経軸索損傷に対し治療効果のある分子が発見されるきっかけを掴める可能性がある。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (11 results)

All 2023 2022 2021 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (8 results) (of which Invited: 1 results) Remarks (2 results)

  • [Journal Article] Specific Activation of Yamanaka Factors via HSF1 Signaling in the Early Stage of Zebrafish Optic Nerve Regeneration2023

    • Author(s)
      Sugitani Kayo、Mokuya Takumi、Homma Shuichi、Maeda Minami、Konno Ayano、Ogai Kazuhiro
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Issue: 4 Pages: 3253-3253

    • DOI

      10.3390/ijms24043253

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ゼブラフィッシュ視神経再生に関与する山中因子について2023

    • Author(s)
      杢屋 拓海,杉谷 加代
    • Organizer
      日本生化学会北陸支部 第41回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ゼブラフィッシュの視神経損傷直後に発現する Transglutaminase 2の作用について2023

    • Author(s)
      杢屋 拓海,杉谷 加代
    • Organizer
      2023年 トランスグルタミナーゼ研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 魚類視神経損傷モデルを用いた中枢神経系修復機構における複数のトランスグルタミナーゼの関与について2023

    • Author(s)
      杉谷 加代
    • Organizer
      日本生化学会第96回大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Role of expression of Transglutaminase 2 (TG2) in the zebrafish retina just after optic nerve injury2023

    • Author(s)
      杉谷 加代
    • Organizer
      第101回日本生理学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Expression of Myeloid-derived growth factor in the zebrafish retina after optic nerve injury2023

    • Author(s)
      Kayo Sugitani, Takumi Mokuya, Yuya Omori, Serika Hosoi, Kazuhiro Ogai
    • Organizer
      第100回日本生理学会大会
    • Related Report
      2022 Research-status Report
  • [Presentation] ゼブラフィッシュ視神経損傷後のHSF-1によるcellular Factor XIII-Aの活性化2022

    • Author(s)
      杢屋 拓海,杉谷 加代
    • Organizer
      2022 年 トランスグルタミナーゼ研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] Heat Shock Factor 1 is involved in the expression of Yamanaka factors in zebrafish retina after optic nerve injury2022

    • Author(s)
      Kayo Sugitani, Takumi Mokuya, Shuichi Homma, Kazuhiro Ogai, Yoshiki Koriyama
    • Organizer
      第99回日本生理学会大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Heat Shock Factor 1 is required for the activation of cellular Factor XIII-A as well as Heat Shock Proteins in early stage of zebrafish optic nerve regeneration2021

    • Author(s)
      Kayo Sugitani, Ayano Konno, Minami Maeda, Kazuhiro Ogai, Yoshiki Koriyama
    • Organizer
      第98回日本生理学会大会
    • Related Report
      2020 Research-status Report
  • [Remarks] 金沢大学医薬保健研究域保健学系 検査技術科学専攻

    • Related Report
      2023 Annual Research Report
  • [Remarks] 金沢大学医薬保健研究域病態検査学講座

    • URL

      https://lab-science.w3.kanazawa-u.ac.jp/member.html#s01

    • Related Report
      2021 Research-status Report 2020 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi