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

Analysis of function of mTORC2 as fatty acid sensor in TLR3 response

Research Project

Project/Area Number 19K16685
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 49070:Immunology-related
Research InstitutionThe University of Tokyo

Principal Investigator

Sato Ryota  東京大学, 医科学研究所, 助教 (90779703)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsTLR / 自然免疫 / ウイルス学 / 代謝免疫学 / ウイルス / 脂質代謝 / Immunometabolism / HSV
Outline of Research at the Start

代謝と免疫応答は密接に関わっており、その連携基盤の解明は重要な課題である。我々は、これ
までに代謝センサーmTORの複合体であるmTORC2が自然免疫受容体TLR3の応答制御機構のマスター遺伝子であることを示した。しかし、mTORC2は何を認識するのか不明瞭であった。申請者の予備的結果により、mTORC2が脂肪酸を認識することでTLR3応答を制御していることが示唆された。本研究ではTLR3応答をアウトプットにすることでmTORC2が脂質センサーであることを検証し、細胞生存に必要な代謝物である脂肪酸がmTORC2を通して免疫応答の許容または禁止を制御するという新たなスキームを確立する。

Outline of Final Research Achievements

mTOR forms two complexes, mTORC1 and mTORC2. Our previous research revealed mTORC2 is master regulatory molecule in TLR3 response, but a role as a metabolic sensor of mTORC2 was still unclear.
We obtained fatty acid synthesis pathway-related molecules as candidates by gRNA library screening. TLR3 responses were attenuated in these knockout cells compared with wild type. It was confirmed that the removal of fatty acids reduced the intracellular translocation of TLR3 stimulated by the TLR3 ligand poly (I: C), and that the addition of fatty acids restored it. This indicates that mTORC2 may sense the amount of fatty acids.

Academic Significance and Societal Importance of the Research Achievements

本研究により、mTORC2が脂肪酸のセンサーとしての役割を果たすことがわかった。また、mTORC2が脂肪酸の量をモニターし、十分であれば免疫応答を許容し、不十分であれば免疫応答を禁止し、代謝応答を促進し脂肪酸を作るというスキームを示せた。これは、mTORC2が免疫応答のバランスを制御するオペレーターの役割を果たす「Immuno-metabolism」の新たなモデルとなる。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (7 results)

All 2020 2019

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (4 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] The impact of cell maturation and tissue microenvironments on the expression of endosomal Toll-like receptors in monocytes and macrophages2020

    • Author(s)
      Sato R, Reuter T, Hiranuma R, Shibata T, Fukui R, Motoi Y, Murakami Y, Tsukamoto H, Yamazaki S, Liu K, Saitoh SI, Latz E, Miyake K.
    • Journal Title

      Int Immunol

      Volume: 32 Issue: 12 Pages: 785-798

    • DOI

      10.1093/intimm/dxaa055

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Identification of a herpes simplex virus 1 gene encoding neurovirulence factor by chemical proteomics2020

    • Author(s)
      Kato Akihisa、Adachi Shungo、Kawano Shuichi、Takeshima Kousuke、Watanabe Mizuki、Kitazume Shinobu、Sato Ryota、Kusano Hideo、Koyanagi Naoto、Maruzuru Yuhei、Arii Jun、Hatta Tomohisa、Natsume Tohru、Kawaguchi Yasushi
    • Journal Title

      Nature Communications

      Volume: 11 Issue: 1 Pages: 4894-4894

    • DOI

      10.1038/s41467-020-18718-9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Endolysosomal compartments as platforms for orchestrating innate immune and metabolic sensors2019

    • Author(s)
      Miyake Kensuke、Saitoh Shin‐ichiroh、Sato Ryota、Shibata Takuma、Fukui Ryutaro、Murakami Yusuke
    • Journal Title

      Journal of Leukocyte Biology

      Volume: 106 Issue: 4 Pages: 853-862

    • DOI

      10.1002/jlb.mr0119-020r

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Combating herpesvirus encephalitis by potentiating a TLR3-mTOR axis2019

    • Author(s)
      Ryota Sato, Akihisa Kato, Takahiko Chimura, Glen N Barber, Toshiya Manabe, Yasushi Kawaguchi, Kensuke Miyake
    • Organizer
      Keystone Symposia Immunometabolism
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Combating herpesvirus encephalitis by potentiating a TLR3-mTOR axis2019

    • Author(s)
      Ryota Sato, Akihisa Kato, Takahiko Chimura, Glen N Barber, Toshiya Manabe, Yasushi Kawaguchi, Kensuke Miyake
    • Organizer
      IUIS2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Combating herpesvirus encephalitis by potentiating a TLR3-mTOR axis2019

    • Author(s)
      Ryota Sato, Akihisa Kato, Takahiko Chimura, Glen N Barber, Toshiya Manabe, Yasushi Kawaguchi, Kensuke Miyake
    • Organizer
      AIFII2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Combating herpesvirus encephalitis by potentiating a TLR3-mTOR axis2019

    • Author(s)
      Ryota Sato, Akihisa Kato, Takahiko Chimura, Glen N Barber, Toshiya Manabe, Yasushi Kawaguchi, Kensuke Miyake
    • Organizer
      ICBL2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2019-04-18   Modified: 2022-12-28  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi