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Analysis of cell miniaturization under sulfur depletion-Relationship between cyclin degradation and autophagy-

Research Project

Project/Area Number 21K05363
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38020:Applied microbiology-related
Research InstitutionNagoya University

Principal Investigator

大塚 北斗  名古屋大学, 創薬科学研究科, 助教 (10632151)

Project Period (FY) 2021-04-01 – 2025-03-31
Project Status Granted (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordseclファミリー遺伝子 / COH1 / 栄養飢餓 / 経時寿命 / 性分化 / ecl3+ / リン / 細胞周期 / Ecl1ファミリー遺伝子 / ecl1+ / オートファジー / サイクリン / 分裂酵母 / 硫黄飢餓 / Ecl1 family 遺伝子 / 硫黄
Outline of Research at the Start

細胞周期はサイクリンを含む、さまざまな因子によって厳密に制御され、サイクリンは周期的にユビキチン-プロテアソームによって分解されることはよく知られている。予備的研究によって、栄養枯渇時、細胞がG0期停止する際は、サイクリンはユビキチン-プロテアソーム系だけではなく、オートファジーによっても分解される証拠が得られつつある。本研究によって、分裂酵母の硫黄枯渇応答および細胞寿命制御因子である、Ecl1 family遺伝子のさらなる理解に繋がるだけでなく、これまでの常識を覆すサイクリンの新たな分解機構の発見に繋がることが期待される。

Outline of Annual Research Achievements

分裂酵母の硫黄飢餓下を含む栄養飢餓応答、栄養飢餓に対する細胞周期制御、栄養飢餓応答遺伝子であるecl family遺伝子らの解析を行った。特に、これまでecl family遺伝子の進化的保存性はわかっていなかったが、今回、昆虫病原性真菌であるMetarhizium robertsiiのCOH1という因子がEcl1の機能的ホモログであることを証明できた。また、COH1もEcl1と同様に、真核生物に保存された栄養感知キナーゼ複合体TORC1を強力に抑制することを報告し た。
これらの結果やこれに付随する研究結果から導かれた研究は、以下の論文にまとめ、発表した。
1.Ohtsuka H et al. “Metarhizium robertsii COH1 functionally complements Schizosaccharomyces pombe Ecl family proteins.” Journal of General and Applied Microbiology. (2023). 2.Ohtsuka H et al. “ecl family genes: Factors linking starvation and lifespan extension in Schizosaccharomyces pombe.” Molecular Microbiology. (2023). 3. Maekawa Y et al. "Identification of plb1 mutation that extends longevity via activating Sty1 MAPK in Schizosaccharomyces pombe." Molecular Genetics and Genomics. (2024). 4. Kamada Y et al. "Structure-based engineering of Tor complexes reveals that two types of yeast TORC1 produce distinct phenotypes." Journal of Cell Science. (2024). 5. Ohtsuka H et al. "Low-molecular weight compounds that extend the chronological lifespan of yeasts, Saccharomyces cerevisiae, and Schizosaccharomyces pombe." Advanced Biology. (2024).

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

これまでecl family遺伝子の進化的保存性はわかっていなかったが、今回、昆虫病原性真菌であるMetarhizium robertsiiのCOH1という因子がEcl1の機能的ホモログであることを証明できた。また、COH1もEcl1と同様に、真核生物に保存された栄養感知キナーゼ複合体TORC1を強力に抑制することを報告し た。
これらの結果やこれに付随する研究結果から導かれた研究は、以下の論文にまとめ、発表した。
1.Ohtsuka H et al. “Metarhizium robertsii COH1 functionally complements Schizosaccharomyces pombe Ecl family proteins.” Journal of General and Applied Microbiology. (2023). 2.Ohtsuka H et al. “ecl family genes: Factors linking starvation and lifespan extension in Schizosaccharomyces pombe.” Molecular Microbiology. (2023). 3. Maekawa Y et al. "Identification of plb1 mutation that extends longevity via activating Sty1 MAPK in Schizosaccharomyces pombe." Molecular Genetics and Genomics. (2024). 4. Kamada Y et al. "Structure-based engineering of Tor complexes reveals that two types of yeast TORC1 produce distinct phenotypes." Journal of Cell Science. (2024). 5. Ohtsuka H et al. "Low-molecular weight compounds that extend the chronological lifespan of yeasts, Saccharomyces cerevisiae, and Schizosaccharomyces pombe." Advanced Biology. (2024).

Strategy for Future Research Activity

これまでの解析で、寿命制御遺伝子ecl family 遺伝子がtarget of rapamycin complex 1 (TORC1)を抑制することで、栄養飢餓においてオートファジーを誘導することがわかっている。今回、種を超えてEclタンパク質がTORC1を抑制することがわかった。今後、Ecl1タンパク質らがどのように してTORC1を抑制しているのかを解析する。
また、Ecl1らの分子機構はまだ不明な部分が多いため、その解析も継続する。

Report

(3 results)
  • 2023 Research-status Report
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (36 results)

All 2024 2023 2022 2021 Other

All Journal Article (15 results) (of which Peer Reviewed: 15 results,  Open Access: 12 results) Presentation (19 results) (of which Int'l Joint Research: 5 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Identification of plb1 mutation that extends longevity via activating Sty1 MAPK in Schizosaccharomyces pombe2024

    • Author(s)
      Maekawa Yasukichi、Matsui Kotaro、Okamoto Keisuke、Shimasaki Takafumi、Ohtsuka Hokuto、Tani Motohiro、Ihara Kunio、Aiba Hirofumi
    • Journal Title

      Molecular Genetics and Genomics

      Volume: 299 Issue: 1 Pages: 20-20

    • DOI

      10.1007/s00438-024-02107-8

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Structure-based engineering of Tor complexes reveals that two types of yeast TORC1 produce distinct phenotypes2024

    • Author(s)
      Kamada Yoshiaki、Umeda Chiharu、Mukai Yukio、Ohtsuka Hokuto、Otsubo Yoko、Yamashita Akira、Kosugi Takahiro
    • Journal Title

      Journal of Cell Science

      Volume: 137 Issue: 4

    • DOI

      10.1242/jcs.261625

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Low‐Molecular Weight Compounds that Extend the Chronological Lifespan of Yeasts, Saccharomyces cerevisiae, and Schizosaccharomyces pombe2024

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

      Advanced Biology

      Volume: - Issue: 5

    • DOI

      10.1002/adbi.202400138

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] <i>Metarhizium robertsii </i>COH1 functionally complements <i>Schizosaccharomyces pombe</i> Ecl family proteins2023

    • Author(s)
      Ohtsuka Hokuto、Kawai Sawa、Otsubo Yoko、Shimasaki Takafumi、Yamashita Akira、Aiba Hirofumi
    • Journal Title

      The Journal of General and Applied Microbiology

      Volume: 69 Issue: 6 Pages: 335-338

    • DOI

      10.2323/jgam.2023.09.001

    • ISSN
      0022-1260, 1349-8037
    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] ecl< family genes: Factors linking starvation and lifespan extension in Schizosaccharomyces pombe2023

    • Author(s)
      Ohtsuka Hokuto、Otsubo Yoko、Shimasaki Takafumi、Yamashita Akira、Aiba Hirofumi
    • Journal Title

      Molecular Microbiology

      Volume: 120 Issue: 5 Pages: 645-657

    • DOI

      10.1111/mmi.15134

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The <i>ecl</i> family gene <i>ecl3</i>+ is induced by phosphate starvation and contributes to sexual differentiation in fission yeast2023

    • Author(s)
      Ohtsuka Hokuto、Sakata Hiroki、Kitazaki Yuto、Tada Masanobu、Shimasaki Takafumi、Otsubo Yoko、Maekawa Yasukichi、Kobayashi Mikuto、Imada Kazuki、Yamashita Akira、Aiba Hirofumi
    • Journal Title

      Journal of Cell Science

      Volume: 136 Issue: 6

    • DOI

      10.1242/jcs.260759

    • Related Report
      2022 Research-status 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 Research-status 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 Research-status 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
      2021 Research-status 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
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [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
      2021 Research-status 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 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Response to sulfur in <i>Schizosaccharomyces pombe</i>2021

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

      FEMS Yeast Research

      Volume: 21 Issue: 5

    • DOI

      10.1093/femsyr/foab041

    • Related Report
      2021 Research-status 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
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identification of <i>sur2</i> mutation affecting the lifespan of fission yeast2021

    • Author(s)
      Kurauchi Tatsuhiro、Matsui Kotaro、Shimasaki Takafumi、Ohtsuka Hokuto、Tsubouchi Satoshi、Ihara Kunio、Tani Motohiro、Aiba Hirofumi
    • Journal Title

      FEMS Microbiology Letters

      Volume: 368 Issue: 12

    • DOI

      10.1093/femsle/fnab070

    • NAID

      120007183219

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] 分裂酵母の寿命延長因子Ecl1の糸状菌ホモログの機能解析2023

    • Author(s)
      河井咲和、大塚北斗、大坪瑶子、島崎崇史、山下朗、饗場浩文
    • Organizer
      日本農芸化学会中部支部第196回例会
    • Related Report
      2023 Research-status Report
  • [Presentation] plb1遺伝子変異はSty1 MAPKの活性化を介して分裂酵母の寿命を延長する2023

    • Author(s)
      前川泰吉、松井滉太朗、岡本啓佑、大塚北斗、島崎嵩史、井原邦夫、谷 元洋、饗場浩文
    • Organizer
      日本農芸化学会中部支部第196回例会
    • Related Report
      2023 Research-status Report
  • [Presentation] 分裂酵母bgs1長寿命変異株の解析2023

    • Author(s)
      加藤伸好、田村昌大、松井滉太朗、島崎嵩史、大塚北斗、井原邦夫、饗場浩文
    • Organizer
      酵母遺伝学フォーラム第56回研究報告会
    • Related Report
      2023 Research-status Report
  • [Presentation] ecl+ファミリー遺伝子の寿命延長効果とカゼインキナーゼ2(CK2)の関係について2023

    • Author(s)
      大原公太郎、大塚北斗、島崎嵩史、饗場浩文
    • Organizer
      酵母遺伝学フォーラム第56回研究報告会
    • Related Report
      2023 Research-status Report
  • [Presentation] Characterization of P-type H+-ATPase Pma1 inhibitors that extend chronological lifespan in fission yeast.2023

    • Author(s)
      Yamashita, W., Tamura, M., Hibi, T., Shimasaki, T., Ohtsuka, H., Shibuya, M., Yokoshima, S., Yamamoto, Y., Aiba, H.
    • Organizer
      The 11 th International Fission Yeast Meeting
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Characterization of nnk1+ that regulates chronological lifespan in fission yeast.2023

    • Author(s)
      Shimasaki, T., Ohtsuka, H., Wada, M., Aiba, H.
    • Organizer
      The 11 th International Fission Yeast Meeting
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Cdc13 (cyclin B) is degraded by autophagy under sulfur depletion in fission yeast.2023

    • Author(s)
      Ohtsuka, H., Shimasaki, T, Otsubo, Y, Yamashita, A, Murakami, H, Aiba, H.
    • Organizer
      The 11 th International Fission Yeast Meeting
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Individual roles of Ecl family proteins: Identification and functional analysis of Ecl family members required for sulfur depletion response.2023

    • Author(s)
      Kosaka, A., Ohtsuka, H., Shimasaki, T., Aiba, H.
    • Organizer
      The 11 th International Fission Yeast Meeting
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] The function of Ecl1, the extender of chronological lifespan, is regulated via the phosphorylation of Thr7.2023

    • Author(s)
      Kawai, S., Ohtsuka, H., Ito, Y., Shimasaki, T., Mishiro-Sato, E., Aiba, H.
    • Organizer
      The 11 th International Fission Yeast Meeting
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [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 Research-status Report
  • [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 Research-status 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
      遺伝学フォーラム 第55回 研究報告会
    • Related Report
      2022 Research-status 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
      遺伝学フォーラム 第55回 研究報告会
    • Related Report
      2022 Research-status 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
      遺伝学フォーラム 第55回 研究報告会
    • Related Report
      2022 Research-status Report
  • [Presentation] 分裂酵母の寿命延長遺伝子ecl3+に見出したリン酸枯渇応答機構の解析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
      日本農芸化学会中部支部第190回例会
    • Related Report
      2021 Research-status 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 Research-status Report
  • [Presentation] 分裂酵母における硫黄枯渇時の細胞応答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
      日本農芸化学会中部支部第190回例会
    • Related Report
      2021 Research-status 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
      遺伝学フォーラム 第54回 研究報告会
    • Related Report
      2021 Research-status Report
  • [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
      遺伝学フォーラム 第54回 研究報告会
    • Related Report
      2021 Research-status Report
  • [Book] 生物の寿命延長2022

    • Author(s)
      南野 徹
    • Total Pages
      460
    • Publisher
      エヌ・ティー・エス
    • ISBN
      9784860437732
    • Related Report
      2021 Research-status Report
  • [Remarks] 名古屋大学大学院 創薬科学研究科 分子微生物学研究分野

    • URL

      http://www.ps.nagoya-u.ac.jp/lab_pages/microbio/aiba/index.html

    • Related Report
      2021 Research-status Report

URL: 

Published: 2021-04-28   Modified: 2024-12-25  

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