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Establishment of medaka lifespan measurement system

Research Project

Project/Area Number 19K06658
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 44010:Cell biology-related
Research InstitutionKyoto University

Principal Investigator

Ishikawa Tokiro  京都大学, 理学研究科, 助教 (70632545)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordsメダカ / 老化 / 寿命
Outline of Research at the Start

メダカは遺伝子改変が容易なモデル生物であり、多数の個体を飼育するのも容易である極めて優れた日本産の実験動物である。
本研究の目的は、メダカを用いて脊椎動物の寿命を調べる系を立ち上げることである。
本研究により、メダカを用いて寿命を調べられるようになれば、すでに線虫やショウジョウバエで示されたさまざまな寿命に関連する因子が脊椎動物においても重要であるかを簡便に調べることが可能となり、人類の寿命延長の研究に大きく役立つことが期待される。

Outline of Final Research Achievements

This project aims to enable the analysis of aging and longevity using medaka fish, a vertebrate with a relatively short life span.
First, we identified a medaka homolog of the p16 gene, a marker of senescent cells. Then, we created transgenic fish harboring a Venus fluorescent protein gene under the p16 promoter. Finally, to determine the effect of caloric intake on the lifespan of medaka, we kept medaka with various amounts of food.
We confirmed that medaka's lifespan was extended when they were fed less food than when they had more food.

Academic Significance and Societal Importance of the Research Achievements

老化や寿命のメカニズムを短期間で解析するためには短期間に自然老化する生き物を用いることが望ましい。本研究ではメダカを用いることで寿命・老化解析が行えるかを検証した。
まず、メダカにおける老化細胞マーカー遺伝子ホモログのクローニングに成功したため、これを用いた老化細胞生成メカニズムの解析が可能になった。また、餌の量を変化させることで寿命が変化することが観察できた。これらによりメダカを用いた寿命・老化解析を行うための手法が一部確立された。

Report

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

    (5 results)

All 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (1 results)

  • [Journal Article] Antipsychotic olanzapine-induced misfolding of proinsulin in the endoplasmic reticulum accounts for atypical development of diabetes2020

    • Author(s)
      Ninagawa Satoshi、Tada Seiichiro、Okumura Masaki、Inoguchi Kenta、Kinoshita Misaki、Kanemura Shingo、Imami Koshi、Umezawa Hajime、Ishikawa Tokiro、Mackin Robert B、Torii Seiji、Ishihama Yasushi、Inaba Kenji、Anazawa Takayuki、Nagamine Takahiko、Mori Kazutoshi
    • Journal Title

      eLife

      Volume: 9 Pages: 23-31

    • DOI

      10.7554/elife.60970

    • NAID

      120006898101

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reinvestigation of Disulfide-bonded Oligomeric Forms of the Unfolded Protein Response Transducer ATF62020

    • Author(s)
      Koba Hibiki、Jin Shengyu、Imada Nanami、Ishikawa Tokiro、Ninagawa Satoshi、Okada Tetsuya、Sakuma Tetsushi、Yamamoto Takashi、Mori Kazutoshi
    • Journal Title

      Cell Structure and Function

      Volume: 45 Issue: 1 Pages: 9-21

    • DOI

      10.1247/csf.19030

    • NAID

      130007792116

    • ISSN
      0386-7196, 1347-3700
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] EDEM2 stably disulfide-bonded to TXNDC11 catalyzes the first mannose trimming step in mammalian glycoprotein ERAD2020

    • Author(s)
      George Ginto、Ninagawa Satoshi、Yagi Hirokazu、Saito Taiki、Ishikawa Tokiro、Sakuma Tetsushi、Yamamoto Takashi、Imami Koshi、Ishihama Yasushi、Kato Koichi、Okada Tetsuya、Mori Kazutoshi
    • Journal Title

      eLife

      Volume: 9

    • DOI

      10.7554/elife.53455

    • NAID

      120006817590

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of a Rapid <i>in vivo</i> Assay to Evaluate the Efficacy of IRE1-specific Inhibitors of the Unfolded Protein Response Using Medaka Fish2019

    • Author(s)
      Jin Byungseok、Ishikawa Tokiro、Taniguchi Mai、Ninagawa Satoshi、Okada Tetsuya、Kagaya Shigehide、Mori Kazutoshi
    • Journal Title

      Cell Structure and Function

      Volume: 45 Issue: 1 Pages: 23-31

    • DOI

      10.1247/csf.19032

    • NAID

      130007795672

    • ISSN
      0386-7196, 1347-3700
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] IRE1経路とPERK経路/ATF6経路の重複した生理的役割の解析2019

    • Author(s)
      石川時郎、山崎鈴花、森和俊
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Research-status Report

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

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