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Deciphering the intercellular signaling via extracellular vesicles by lipid-recognizing GPCRs

Research Project

Project/Area Number 20K15790
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 44010:Cell biology-related
Research InstitutionOsaka University

Principal Investigator

Somiya Masaharu  大阪大学, 産業科学研究所, 助教 (50788974)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords細胞外小胞 / エクソソーム / GPCR / 細胞内シグナリング / 受容体 / 細胞間情報伝達 / 脂質
Outline of Research at the Start

本研究では、細胞から分泌される細胞外小胞が細胞間の情報伝達に利用されるメカニズムを解明するため、細胞外小胞に含まれる脂質に着目する。細胞外小胞の脂質成分を認識する細胞表面受容体を同定し、そのシグナル伝達の詳細なメカニズムを解明する事を目指す。

Outline of Final Research Achievements

Extracellular vesicles (EVs) have been known to involve in intercellular communications by delivering cargo molecules. In this study, we identified the novel mechanism of EV-mediated intercellular communication via the interaction between the lipid moiety of EVs and cell surface receptor, G protein-coupled receptors (GPCRs). By using the library of engineered GPCRs that include over 300 human GPCRs, we found multiple candidate GPCRs possibly recognize the lipid moiety of EVs. Those GPCRs may recognize the lipids of EVs and induce intracellular signaling.

Academic Significance and Societal Importance of the Research Achievements

細胞外小胞EVが細胞間情報伝達に関与していることが近年明らかになってきている。これまでの研究は主にEVの内部に含まれている核酸(特に小分子RNA)やタンパク質が情報伝達を担っているということが示唆されているが、本研究では新たにEV表面の脂質分子が細胞表面の受容体に認識されて細胞内のシグナル経路を活性化するという新たなメカニズムが存在することを発見したことに意義がある。特に複数種類のGPCRがEVを認識している可能性を明らかにしたという点で新規性が高い。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (8 results)

All 2022 2021

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results)

  • [Journal Article] Reporter Gene Assay for Membrane Fusion of Extracellular Vesicles2021

    • Author(s)
      Somiya, Masaharu, Shun’ichi Kuroda
    • Journal Title

      Journal of Extracellular Vesicles

      Volume: 10 Issue: 13

    • DOI

      10.1002/jev2.12171

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Real-Time Luminescence Assay for Cytoplasmic Cargo Delivery of Extracellular Vesicles2021

    • Author(s)
      Somiya Masaharu、Kuroda Shun’ichi
    • Journal Title

      Analytical Chemistry

      Volume: 93 Issue: 13 Pages: 5612-5620

    • DOI

      10.1021/acs.analchem.1c00339

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Reporter gene assay for membrane fusion of extracellular vesicles2021

    • Author(s)
      Somiya Masaharu、Kuroda Shun’ichi
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2021.02.16.431359

    • Related Report
      2020 Research-status Report
  • [Presentation] Analysis of intracellular trafficking of extracellular vesicles for cytoplasmic biomacromolecule delivery2022

    • Author(s)
      Masaharu Somiya
    • Organizer
      The 25th SANKEN International Symposium,
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of quantitative bioassays to study cargo delivery mechanism and efficiency of extracellular vesicles2021

    • Author(s)
      Masaharu Somiya
    • Organizer
      Hybrid EV Symposium “EXTRACELLULAR VESICLES IN PATHOPHYSIOLOGY”,
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cargo delivery mechanism of extracellular vesicles; experimental tools to tackle the dogm2021

    • Author(s)
      Masaharu Somiya
    • Organizer
      SNEV (Student Network on Extracellular Vesicles) 2021 International Virtual Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 細胞外小胞のエンジニアリングによるタンパク質ソーティングの制御と薬物送達への応用2021

    • Author(s)
      曽宮正晴、黒田俊一
    • Organizer
      第73回日本生物工学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 細胞外小胞の膜融合活性および内包物放出を定量的に評価するアッセイ系の開発2021

    • Author(s)
      曽宮正晴、黒田俊一
    • Organizer
      第37回日本DDS学会学術集会
    • Related Report
      2021 Annual Research Report

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Published: 2020-04-28   Modified: 2023-01-30  

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