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Identification of pH-induced transcription factors governing pH stress adaptation

Planned Research

Project AreaEstablishment of pH Biology
Project/Area Number 20H05788
Research Category

Grant-in-Aid for Transformative Research Areas (B)

Allocation TypeSingle-year Grants
Review Section Transformative Research Areas, Section (III)
Research InstitutionKyoto University

Principal Investigator

Takakahashi Nobuaki  京都大学, 工学研究科, 准教授 (70604635)

Co-Investigator(Kenkyū-buntansha) 圓岡 真宏  京都大学, 高等研究院, 特定助教 (70736412)
Project Period (FY) 2020-10-02 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥38,220,000 (Direct Cost: ¥29,400,000、Indirect Cost: ¥8,820,000)
Fiscal Year 2022: ¥11,830,000 (Direct Cost: ¥9,100,000、Indirect Cost: ¥2,730,000)
Fiscal Year 2021: ¥11,830,000 (Direct Cost: ¥9,100,000、Indirect Cost: ¥2,730,000)
Fiscal Year 2020: ¥14,560,000 (Direct Cost: ¥11,200,000、Indirect Cost: ¥3,360,000)
KeywordspH / pHストレス適応 / がん / 転写因子 / pH適応 / ストレス感知 / TRPチャネル
Outline of Research at the Start

本研究ではpHに対する生物学的理解に変革を起こすべく、pH誘導型転写因子の同定という生命科学の最重要課題の一つに挑むことを主たる目的とする。またpHの「シグナル」としての側面にも迫るべく、pH感受性Ca2+透過型TRPチャネルを基盤とし、pH変動→Ca2+シグナルへの変換が及ぼすがん生物学的意義も解明する。さらに、ストレス感知・応答機構は無脊椎動物から発見された例が多数存在するので、A02と共同でpH耐性サンゴの適応機構を解明することで、この知見を哺乳類に適用するというユニークな研究も実施する。以上、「pH応答生物学の創成」を実現するべく、先頭に立ってpHに対する生物学的理解に変革を起こす。

Outline of Final Research Achievements

The primary objective of this study was to address one of the most crucial challenges in life sciences, which is the identification of pH-induced transcription factors, with the aim of revolutionizing the biological understanding of pH. Specifically, after identifying enhancer regions required for gene expression induction by low pH stimuli, we extensively identified proteins binding to these regions through mass spectrometry experiments, resulting in the discovery of approximately 400 candidate genes for pH-induced transcription factors. Moving forward, we plan to use CRISPR-Cas9 technology to disrupt each candidate gene and identify those whose response to pH stimuli is attenuated, thereby finalizing the pH-induced transcription factors.

Academic Significance and Societal Importance of the Research Achievements

酸化ストレス誘導型転写因子NRF2や低酸素ストレス誘導型転写因子HIFの発見が及ぼした歴史、またpHが司る生物学的枢要性・多様性を考えると、pH誘導型転写因子の同定により現代の生物学の常識を超えた新規生命現象が見えてくることは間違いなく、かつ多くの研究における源流になることが期待される。またpH異常は事実上すべての疾患に関わっていることが予想されるため、創薬の観点でも非常に重要な知見を得ることになる。

Report

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

    (13 results)

All 2022 2021 2020

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 3 results,  Invited: 10 results)

  • [Journal Article] <i>N</i>-Methylamide-structured SB366791 derivatives with high TRPV1 antagonistic activity: toward PET radiotracers to visualize TRPV12022

    • Author(s)
      Kida Tatsuya、Takahashi Nobuaki、Mori Masayuki X.、Sun Jiacheng H.、Oota Hideto、Nishino Kosuke、Okauchi Takashi、Ochi Yuta、Kano Daisuke、Tateishi Ukihide、Watanabe Yasuyoshi、Cui Yilong、Mori Yasuo、Doi Hisashi
    • Journal Title

      RSC Medicinal Chemistry

      Volume: 13 Issue: 10 Pages: 1197-1204

    • DOI

      10.1039/d2md00158f

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Role of Oxidative Stress and Ca2+ Signaling in Psychiatric Disorders2021

    • Author(s)
      Nakao A, Matsunaga Y, Hayashida K, Takahashi N.
    • Journal Title

      Front Cell Dev Biol.

      Volume: 9 Pages: 615569-615569

    • DOI

      10.3389/fcell.2021.615569

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 3D Culture Models with CRISPR Screens Reveal Hyperactive NRF2 as a Prerequisite for Spheroid Formation via Regulation of Proliferation and Ferroptosis2020

    • Author(s)
      Takahashi N, Cho P, Selfors LM, Kuiken HJ, Kaul R, Fujiwara T, Harris IS, Zhang T, Gygi SP, and Brugge JS
    • Journal Title

      Molecular Cell

      Volume: 80 Issue: 5 Pages: 828-844

    • DOI

      10.1016/j.molcel.2020.10.010

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 腫瘍内H2O2イメージングにより明らかになった新規がん酸化ストレス防御機構2022

    • Author(s)
      高橋 重成
    • Organizer
      第16回日本分子イメージング学会総会・学術集会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 腫瘍内H2O2イメージングにより明らかになった新規がん酸化ストレス防御機構2022

    • Author(s)
      高橋 重成
    • Organizer
      第31回 日本がん転移学会学術集会・総会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Oxidative Stress Defense Programs in Cancer2022

    • Author(s)
      Nobuaki Takahashi
    • Organizer
      Redox week in Sendai 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Oxidative Stress Defense Programs in Cancer2022

    • Author(s)
      Nobuaki Takahashi
    • Organizer
      第96回日本薬理学会年会・第43回日本臨床薬理学会学術総会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Oxidative Stress Defense Programs in Cancer2022

    • Author(s)
      Nobuaki Takahashi
    • Organizer
      ION CHANNELS & CANCER MEETING 2022 in France
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Molecular evolutionary study reveals TRPA1 channel as the hypoxic stress sensor that regulates blood supply to the fetus in maternal anemia2022

    • Author(s)
      Nobuaki Takahashi
    • Organizer
      8th IRCMS seminar at Kumamoto University
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] がん細胞による酸化ストレス適応戦略2022

    • Author(s)
      高橋 重成
    • Organizer
      京都大学臨床×工学(化学)異分野交流会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] pHストレス・酸化ストレスの連関2021

    • Author(s)
      高橋 重成
    • Organizer
      第94回 日本生化学会大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Oxidative Stress Defense in Cancer2021

    • Author(s)
      Nobuaki Takahashi
    • Organizer
      Smart Aging Research Center at Tohoku University
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Oxidative Stress Defense Programs in Cancer2020

    • Author(s)
      Nobuaki Takahashi
    • Organizer
      Cancer Program Meeting in Broad Institute of MIT
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2020-10-30   Modified: 2025-01-30  

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