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A mechanism that switches the signaling specificity of Rho1 GTPase

Research Project

Project/Area Number 16H04781
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Cell biology
Research InstitutionWaseda University (2018-2019)
Gunma University (2016-2017)

Principal Investigator

Yoshida Satoshi  早稲田大学, 国際学術院, 教授 (60519320)

Co-Investigator(Kenkyū-buntansha) 高稲 正勝  群馬大学, 未来先端研究機構, 助教 (20573215)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2018: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
KeywordsRhoGTPase / PKC / PP2A / 酵母 / Rho1 / Pkc1 / GAP / シグナル伝達 / Rho GTPase / ストレス応答 / 細胞周期制御 / 癌 / 菌類 / 蛋白質 / 老化 / 細胞 / GTPase
Outline of Final Research Achievements

Budding yeast Rho1 GTPase activates PKC-MAP kinase pathway in a stressful condition while it promote cell wall synthesis via PP2A-Cdc55 pathway in a growth condition. A key question in this study was to understand how Rho1 specifically select its targets (PKC and PP2A) in different growth conditions. We have shown that activity of both Rho1-PKC and Rho1-PP2A pathways are maintained by positive feedback mechanisms and that activity of PKC and PP2A are mutually antagonistic. Mutual antagonism between two Rho1 effectors may explain why only one pathway downstream of Rho1 is activated at a time.

Academic Significance and Societal Importance of the Research Achievements

Rhoの過剰発現や異常な活性化は癌、糖尿病、神経疾患、発生異常等さまざまな疾患の原因となることが知られているが効率よくRhoの活性そのものを阻害する薬剤の開発はほとんど進んでいない。本研究ではRhoシグナル伝達系のアキレス腱として下流のエフェクターであるPKCとPP2A間の相互作用が重要であることを明らかにした。PKCやPP2Aという阻害剤開発が十分に進んでいる分子を標的とすることでRho関連疾患の制御や治療が可能であると期待される。

Report

(4 results)
  • 2019 Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (32 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (4 results) Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (23 results) (of which Int'l Joint Research: 4 results,  Invited: 13 results)

  • [Int'l Joint Research] Karolinska Institute(スウェーデン)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Freibourg University(スイス)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Brandeis University(米国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Freibourg University(スイス)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Reliable imaging of ATP in living budding and fission yeast2019

    • Author(s)
      Takaine M, Ueno M, Kitamura K, Imamura H, Yoshida S.
    • Journal Title

      J Cell Sci.

      Volume: 132 Issue: 8 Pages: 1-11

    • DOI

      10.1242/jcs.230649

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spindle pole body movement is affected by glucose and ammonium chloride in fission yeast2019

    • Author(s)
      Ito H, Sugawara T, Shinkai S, Mizukawa S, Kondo A, Senda H, Sawai K, Ito K, Suzuki S, Takaine M, Yoshida S, Imamura H, Kitamura K, Namba T, Tate SI, Ueno M
    • Journal Title

      Biochem Biophys Res Commun

      Volume: 511 Issue: 4 Pages: 820-825

    • DOI

      10.1016/j.bbrc.2019.02.128

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ypk1/Ypk2 kinases maintain Rho1 at the plasma membrane by flippase-dependent lipid remodeling after membrane stresses.2017

    • Author(s)
      Hatakeyama R, Kono K and Yoshida S.
    • Journal Title

      J. Cell. Sci.

      Volume: 130 Issue: 6 Pages: 1169-1178

    • DOI

      10.1242/jcs.198382

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Kynurenine aminotransferase activity of Aro8/Aro9 engage tryptophan degradation by producing kynurenic acid in Saccharomyces cerevisiae2017

    • Author(s)
      Kazuto Ohashi, Romanas Chaleckis, Masak Takaine, Craig E. Wheelock, Satoshi Yoshida
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 12180-12180

    • DOI

      10.1038/s41598-017-12392-6

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Zds1/Zds2-PP2ACdc55 complex specifies signaling output from Rho1 GTPase2016

    • Author(s)
      Jonasson EM, Rossio V, Hatakeyama R, Abe M, Ohya Y, Yoshida S
    • Journal Title

      J Cell Biol

      Volume: 212(1) Issue: 1 Pages: 51-61

    • DOI

      10.1083/jcb.201508119

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] ATP 濃度とタンパク質凝集の知られざる関係2019

    • Author(s)
      高稲 正勝、今村博臣、◯吉田知史
    • Organizer
      日本遺伝学会 第91回年会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] ATP 濃度恒常性とその破綻2019

    • Author(s)
      高稲 正勝、今村博臣、◯吉田知史
    • Organizer
      酵母遺伝学フォーラム 第51回 研究報告会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Genes involved in type III unconventional protein secretion in budding yeast2019

    • Author(s)
      Satoshi Yoshida
    • Organizer
      International membrane biology research forum(OIST)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 細胞内ATP 濃度の可視化により見えてきたATP 濃度恒常性の生理的意義2018

    • Author(s)
      高稲 正勝、吉田知史
    • Organizer
      日本分子生物学会年会(パシフィコ横浜)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 型破りな分泌関連遺伝子群の網羅的同定とその解析2018

    • Author(s)
      宮崎光江、高稲正勝、◯吉田知史
    • Organizer
      日本分子生物学会年会(パシフィコ横浜
    • Related Report
      2018 Annual Research Report
  • [Presentation] 型破りな分泌の謎に迫る2018

    • Author(s)
      ◯吉田知史
    • Organizer
      酵母細胞研究会 第51回 例会(キリンビール横浜工場)
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] TORC1とTORC2のクロストーク2018

    • Author(s)
      ◯吉田知史
    • Organizer
      大阪大学蛋白研セミナー “TOR を介した細胞成長統御の総合的理解” (第8回TOR 研究会)
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 型破りな分泌関連遺伝子群の網羅的同定とその解析2018

    • Author(s)
      宮崎光江、高稲正勝、◯吉田知史
    • Organizer
      酵母遺伝学フォーラム 第51回 研究報告会 (九州大学医学部100年講堂)
    • Related Report
      2018 Annual Research Report
  • [Presentation] ATP 濃度恒常性の生理的意義2018

    • Author(s)
      ◯高稲 正勝、吉田知史
    • Organizer
      酵母遺伝学フォーラム 第51回 研究報告会 (九州大学医学部100年講堂)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 過剰トリプトファンによるアミノ酸インバランスはTORを標的とする2018

    • Author(s)
      ◯大橋一登、高稲 正勝、吉田知史
    • Organizer
      酵母遺伝学フォーラム 第51回 研究報告会 (九州大学医学部100年講堂)
    • Related Report
      2018 Annual Research Report
  • [Presentation] ATP homeostasis visualized by a novel biosensor QUEEN2017

    • Author(s)
      Satoshi Yoshida
    • Organizer
      Japan-Canadian Frontiers of Science Symposium
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 出芽酵母の細胞内ATP濃度変動を制御する仕組み2017

    • Author(s)
      高稲 正勝、今村 博臣、吉田 知史
    • Organizer
      日本生体エネルギー研究会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 出芽酵母TORC2-SGKによるPkc1活性化のメカニズム2017

    • Author(s)
      吉田知史
    • Organizer
      TOR研究会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Visualization of energy status of each single yeast cell2017

    • Author(s)
      Masak Takaine, Hiromi Imamura, Satoshi Yoshida
    • Organizer
      生命科学系学会合同年次大会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 出芽酵母の細胞内ATP濃度変動を制御する仕組み2017

    • Author(s)
      高稲 正勝、今村 博臣、吉田 知史
    • Organizer
      生命科学系学会合同年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] キヌレニンアミノ転移酵素はトリプトファン毒性を中和する2017

    • Author(s)
      大橋一登、高稲正勝、吉田知史
    • Organizer
      生命科学系学会合同年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Pkc1キナーゼとPP2Aホスファターゼの拮抗がRho1 GTPaseの出力シグナルを安定化させる2017

    • Author(s)
      吉田知史
    • Organizer
      酵母遺伝学フォーラム年会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 出芽酵母の細胞内ATP濃度変動を制御する仕組み2017

    • Author(s)
      高稲正勝、今村博臣、吉田知史
    • Organizer
      酵母遺伝学フォーラム年会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] キヌレニンアミノ転移酵素はトリプトファン毒性を中和する2017

    • Author(s)
      大橋一登、Romanas Chaletkis、高稲正勝、Craig Wheelock, 吉田知史
    • Organizer
      酵母遺伝学フォーラム年会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] A mechanism that specifies signaling output of Rho1 GTPase2016

    • Author(s)
      Satoshi Yoshida
    • Organizer
      14th International Conference on Yeast
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A mechanism that regulates Rho1 signaling specificity2016

    • Author(s)
      Satoshi Yoshida
    • Organizer
      UK-Japan Frontiers of Science Symposium
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] In vivo imaging of cytoplasmic ATP in living yeast cells reveals a profound effect of oxidative stress on ATP level2016

    • Author(s)
      Masak Takaine, Hiromi Imamura, Satoshi Yoshida
    • Organizer
      日本生物物理学会
    • Related Report
      2016 Annual Research Report
  • [Presentation] 細胞質ATP濃度の可視化により見えてきた、酸化ストレス下における酵母の生存戦略2016

    • Author(s)
      高稲正勝、今村博臣、吉田知史
    • Organizer
      日本分子生物学会
    • Related Report
      2016 Annual Research Report

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Published: 2016-04-21   Modified: 2021-02-19  

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