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Physiological significance and structure of TRP channel/ANO1 complex, and its clinical application

Research Project

Project/Area Number 21H02667
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 48020:Physiology-related
Research InstitutionNational Institutes of Natural Sciences

Principal Investigator

Tominaga Makoto  大学共同利用機関法人自然科学研究機構(機構直轄研究施設), 生命創成探究センター, 教授 (90260041)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2023: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2022: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2021: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
KeywordsTRPチャネル / ANO1複合体 / カルシウム / ANO1 / 複合体
Outline of Research at the Start

TRPM2, TRPV3, TRPM8がCa2+活性化Cl-チャネルanoctamin1 (ANO1)と機能連関するかどうかを検討し、TRPチャネル/ANO1複合体およびCl-移動の生理学的意義の全容を明らかにする。次に、TRPチャネルとANO1複合体形成の構造基盤を明らかにする。ANO1と機能連関する複数のTRPチャネルのアミノ酸比較、キメラ体・点変異体解析によって、複合体形成に関わるモチーフやアミノ酸残基の同定を行う。TRPチャネル/ANO1複合体機能制御の臨床応用を見据え、複合体形成阻害剤やANO1阻害剤をスクリーニングして制汗薬や鎮痛薬の開発とヒトへの応用まで行う。

Outline of Final Research Achievements

We have found several new things regarding the structure and function of thermosensitive TRP channels.
1. We found the temperature-dependent movement of mouse brain microglia with TRPV4. 2. We found that saliva from mouse and mosquito inhibits TRPV1 and TRPA1, causing antinociception in mice. 3. We analyzed temperature-dependent behaviors of mice including ones lacking thermosensitive TRP channels with Thermal Gradient Ring. 4. We identified several amino acids in mosquito TRPA1 involved in the determination of activation temperature thresholds. 5. We concluded the involvement of TRPV3 in skin keratinocytes in ambient temperature detection in mice. 6. We found that the TRPV4/anoctamin1 interaction is involved in perspiration in mice. 7. We found that the TRPV1/anoctamin1 interaction is involved in inflammatory pain.

Academic Significance and Societal Importance of the Research Achievements

多くの動物種の温度感受性TRPチャネルが生物のさまざまな温度依存性活動に関わっていることを明らかにした。そして、温度感受性TRPチャネルの温度感知機能の構造基盤の一部を明らかにした。それは、以下のことにつながる。(1) 新たな鎮痛薬の開発、(2) 身体中の細胞、組織が温度を感知しているという新しい概念の創出、(3) Thermal preferenceとthermal avoidanceが異なることの説明、(4) 新たな制汗剤の開発。
温度生物学に多くの新知見が加わった。

Report

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

    (6 results)

All 2024 2023 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (3 results) (of which Invited: 3 results) Remarks (2 results)

  • [Journal Article] TRPV3-ANO1 interaction positively regulates wound healing in keratinocytes2023

    • Author(s)
      Yamanoi Yu、Lei Jing、Takayama Yasunori、Hosogi Shigekuni、Marunaka Yoshinori、Tominaga Makoto
    • Journal Title

      Communications Biology

      Volume: 6 Issue: 1 Pages: 88-88

    • DOI

      10.1038/s42003-023-04482-1

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 温度感受性TRPチャネルを介した温度感知のメカニズムと生理機能2024

    • Author(s)
      富永 真琴
    • Organizer
      自動車技術シンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 上皮におけるTRP Familyの役割2024

    • Author(s)
      富永 真琴
    • Organizer
      Scientific Exchange Meeting
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] TRPチャネルを介した温度受容のメカニズムと生体反応2023

    • Author(s)
      富永 真琴
    • Organizer
      第56回現代医療鍼灸臨床研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Remarks] 生命創成探究センター 温度生物学研究グループ

    • URL

      http://www.nips.ac.jp/cs/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 自然科学研究機構 生命創成探究センター 温度生物学研究グループ(生理学研究所 細胞生理研究部門)

    • URL

      http://www.nips.ac.jp/cs/

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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