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

Elucidation of the regulatory basis of cell lifespan

Research Project

Project/Area Number 20H02898
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 38020:Applied microbiology-related
Research InstitutionNagoya University

Principal Investigator

Aiba Hirofumi  名古屋大学, 創薬科学研究科, 教授 (60211687)

Co-Investigator(Kenkyū-buntansha) 井原 邦夫  名古屋大学, 遺伝子実験施設, 准教授 (90223297)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2022: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2020: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Keywords寿命 / 酵母 / 老化 / オートファジー / 硫黄 / 分裂酵母 / 経時寿命 / 微生物
Outline of Research at the Start

健康長寿社会の構築に向けて、「寿命がいかにして決まるのか?」を解明することは現代生物学が取り組むべき重要課題の1つである。ヒトに代表される高等動物の寿命を理解するためには、その前提として細胞レベルで寿命を理解することが必須であると考え、申請者は微生物の専門家の立場から、分裂酵母をモデルにこの問題に取り組む。とりわけ、新規な寿命制御シグナルの発見と作用機構の解明、ならびに未知の寿命制御因子の同定と機能解析に焦点を絞り、普遍的な細胞寿命制御機構に関する知見を得る。これらの解析を通して寿命の基本的理解を深め、将来的なヒトの寿命創薬に向けた基盤を確立する。

Outline of Final Research Achievements

The following results were obtained by analyzing the function of the longevity gene Ecl1 and its family genes discovered in fission yeast. (1) Sulfur depletion, which was identified as a new signal for life span extension, induces transcription of the Ecl1 gene, but also induces autophagy. (2) We found that autophagy induction by the above sulfur depletion did not occur in strains in which all Ecl family genes (ecl1, ecl2, and ecl3) were deleted. Therefore, the Ecl family genes were found to be necessary for the enhancement of autophagy by sulfur depletion.

Translated with DeepL.com (free version)

Academic Significance and Societal Importance of the Research Achievements

細胞寿命の制御機構に関する研究を行い以下の成果を得た。当研究室で過去に発見した寿命延長因子Ecl1とその誘導シグナルである硫黄枯渇との関係を解析したところ、硫黄枯渇はEcl1を発現誘導して細胞寿命を延ばすが、その際、オートファジーも誘導することが明らかとなった。さらに硫黄枯渇によるオートファジー誘導はEclファミリー遺伝子に依存することがわかった。これらの成果により、細胞寿命制御機構に関する新たな知見が蓄積した。

Report

(4 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (17 results)

All 2023 2022 2021

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 8 results) Presentation (9 results) (of which Invited: 1 results)

  • [Journal Article] Cdc13 (cyclin B) is degraded by autophagy under sulfur depletion in fission yeast2022

    • Author(s)
      Ohtsuka Hokuto、Hatta Yoshiko、Hayashi Kana、Shimasaki Takafumi、Otsubo Yoko、Ito Yurika、Tsutsui Yu、Hattori Nobutake、Yamashita Akira、Murakami Hiroshi、Aiba Hirofumi
    • Journal Title

      Autophagy Reports

      Volume: 1 Issue: 1 Pages: 51-64

    • DOI

      10.1080/27694127.2022.2047442

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Response to leucine in <i>Schizosaccharomyces pombe</i> (fission yeast)2022

    • Author(s)
      Ohtsuka Hokuto、Shimasaki Takafumi、Aiba Hirofumi
    • Journal Title

      FEMS Yeast Research

      Volume: - Issue: 1

    • DOI

      10.1093/femsyr/foac020

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tschimganine has different targets for chronological lifespan extension and growth inhibition in fission yeast2022

    • Author(s)
      Ohtsuka Hokuto、Matsumoto Takuma、Mochida Takahiro、Shimasaki Takafumi、Shibuya Masatoshi、Yamamoto Yoshihiko、Aiba Hirofumi
    • Journal Title

      Bioscience, Biotechnology, and Biochemistry

      Volume: - Issue: 6 Pages: 775-779

    • DOI

      10.1093/bbb/zbac051

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of hexose transporter genes in the views of the chronological life span and glucose uptake in fission yeast2022

    • Author(s)
      Maruyama Teppei、Hayashi Kanako、Matsui Kotaro、Maekawa Yasukichi、Shimasaki Takafumi、Ohtsuka Hokuto、Shigeaki Saitoh、Aiba Hirofumi
    • Journal Title

      The Journal of General and Applied Microbiology

      Volume: 68 Issue: 6 Pages: 270-277

    • DOI

      10.2323/jgam.2022.05.006

    • ISSN
      0022-1260, 1349-8037
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sporulation: A response to starvation in the fission yeast <i>Schizosaccharomyces pombe</i>2022

    • Author(s)
      Ohtsuka Hokuto、Imada Kazuki、Shimasaki Takafumi、Aiba Hirofumi
    • Journal Title

      MicrobiologyOpen

      Volume: 11 Issue: 3

    • DOI

      10.1002/mbo3.1303

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identification of <i>ksg1</i> mutation showing long‐lived phenotype in fission yeast2021

    • Author(s)
      Matsui Kotaro、Okamoto Keisuke、Hasegawa Tomoka、Ohtsuka Hokuto、Shimasaki Takafumi、Ihara Kunio、Goto Yuhei、Aoki Kazuhiro、Aiba Hirofumi
    • Journal Title

      Genes to Cells

      Volume: 26 Issue: 12 Pages: 967-978

    • DOI

      10.1111/gtc.12897

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Extension of chronological lifespan in <i>Schizosaccharomyces pombe</i>2021

    • Author(s)
      Ohtsuka Hokuto、Shimasaki Takafumi、Aiba Hirofumi
    • Journal Title

      Genes to Cells

      Volume: 26 Issue: 7 Pages: 459-473

    • DOI

      10.1111/gtc.12854

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Magnesium depletion extends fission yeast lifespan via general amino acid control activation2021

    • Author(s)
      Ohtsuka Hokuto、Kobayashi Mikuto、Shimasaki Takafumi、Sato Teppei、Akanuma Genki、Kitaura Yasuyuki、Otsubo Yoko、Yamashita Akira、Aiba Hirofumi
    • Journal Title

      MicrobiologyOpen

      Volume: 10 Issue: 2 Pages: 1176-1176

    • DOI

      10.1002/mbo3.1176

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 分裂酵母における新規寿命制御因子cmr2+の発見と解析2023

    • Author(s)
      大塚茉代、有政佳穂、松井滉太朗、大塚北斗、島崎嵩史、饗場浩文
    • Organizer
      日本農芸化学会2023年度大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 分裂酵母必須キナーゼNnk1はチェックポイントキナーゼを介して適切な細胞周期進行に貢献する2023

    • Author(s)
      和田諒、藤森佳那、林可奈子、鈴木黄太、倉内達弘、橋爪彩、島崎嵩史、大塚北斗、饗場浩文
    • Organizer
      日本農芸化学会2023年度大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] S. pombeのリン枯渇応答の解析2022

    • Author(s)
      北﨑悠人、坂田拓基、小林未来登、大塚北斗、島崎嵩史、大坪瑶子、山下朗、饗場浩文
    • Organizer
      酵母遺伝学フォーラム第55回研究報告会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 寿命制御因子Ecl1のリン酸化変異株の解析2022

    • Author(s)
      伊藤由梨花、大塚北斗、島崎嵩史、桑田啓子、饗場浩文
    • Organizer
      酵母遺伝学フォーラム第55回研究報告会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 分裂酵母における寿命関連因子plb1の同定および機能解析2022

    • Author(s)
      前川泰吉、松井滉太朗、岡本啓祐、大塚北斗、島崎嵩史、井原邦夫、谷元洋、饗場浩文
    • Organizer
      酵母遺伝学フォーラム第55回研究報告会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 裂酵母における細胞寿命の制御基盤2022

    • Author(s)
      饗場浩文
    • Organizer
      日本農芸化学会2022年度大会シンポジウム「酵母に学ぶ細胞の寿命・老化メカニズム」
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] リン酸枯渇時における分裂酵母の経時寿命延長因子Ecl1ファミリー遺伝子の解析2021

    • Author(s)
      坂田拓基、小林未来登、大塚北斗、島崎嵩史、饗場浩文
    • Organizer
      酵母遺伝学フォーラム第54回研究報告会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] 分裂酵母の硫黄枯渇条件下での細胞応答機構の解析2021

    • Author(s)
      林加奈、大塚北斗、島崎嵩史、大坪瑶子、山下朗、村上浩士、饗場浩文
    • Organizer
      酵母遺伝学フォーラム第54回研究報告会
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Presentation] 分裂酵母の新規寿命関連因子の同定と機能解析2021

    • Author(s)
      大塚茉代、有政佳穂、松井滉太朗、長谷川朋香、岡本啓佑、大塚北斗、島崎嵩史、饗場浩文
    • Organizer
      日本農芸化学会中部支部第190回例会
    • Related Report
      2021 Annual Research Report 2020 Annual Research 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