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Molecular basis for determining degradation and recycling of EGFR on endosomes

Research Project

Project/Area Number 21K07104
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 50010:Tumor biology-related
Research InstitutionFukushima Medical University

Principal Investigator

Uemura Takefumi  福島県立医科大学, 医学部, 准教授 (80548925)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
KeywordsEGFR / メンブレントラフィック / クラスリンアダプター / エンドソーム / ゴルジ体 / がん / 細胞内小胞輸送 / クラスリン
Outline of Research at the Start

上皮成長因子受容体EGFRのチロシンキナーゼ活性は癌病態と密接に関連する。申請者はEGFRの結合因子として、ゴルジ体・エンドソームで選別輸送因子として機能するクラスリンアダプターGGA2・AP1-γ1(γ1サブユニットを含むAP1)・AP1-γ2(γ2サブユニットを含むAP1)を同定した。また、これら3因子がエンドソームに局在する事、EGFR分解を調節する事 (EGFRの寿命決定) を見出した。本研究ではこの3因子の、EGFR取り込み、分解、リサイクルにおける機能を明らかにする。また癌細胞の挙動・腫瘍形成における関与や、癌組織における発現を解析する。

Outline of Final Research Achievements

Endocytic pathway of EGFR has been intensively studied. However, recycling pathway of EGFR remains poorly understood. In the present study, I found the role of clathrin adaptors AP-1 and GGA2 in EGFR recycling. They recognize EGFR on the recycling endosomes which is positive for Rab11, and knockdown of each adaptor decreases the recycling rates of EGFR. I also observed the upregulations of AP-1 and GGA2 on endosomal structures in tumors of some cancer tissues, which suggests the importance of AP-1 and GGA2 in growth and invasion of cancer cells.

Academic Significance and Societal Importance of the Research Achievements

学術的意義:EGFRのリサイクリングの分子基盤はよくわかっていなかったが、本研究によりクラスリンアダプターのAP-1およびGGA2の関与を明らかにした。
社会的意義:分子標的薬によるEGFRの阻害は癌治療の戦略であるが、その使用は数年後に薬剤耐性細胞を伴う。本研究で見出したEGFR阻害は新たな癌治療戦略であり、新たな抗癌剤による癌治療の可能性が示唆された。

Report

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

    (11 results)

All 2024 2023 2022 2021 Other

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (6 results) (of which Invited: 1 results) Remarks (1 results)

  • [Journal Article] Endosomal protein expression of γ1-adaptin is associated with tumor growth activity and relapse-free survival in breast cancer2024

    • Author(s)
      Hoshi N, Uemura T, Tachibana K, Abe S, Murakami-Nishimagi Y, Okano M, Noda M, Saito K, Kono K, Ohtake T, Waguri S
    • Journal Title

      Breast Cancer

      Volume: 31 Issue: 2 Pages: 305-316

    • DOI

      10.1007/s12282-023-01539-1

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] STING signalling is terminated through ESCRT-dependent microautophagy of vesicles originating from recycling endosomes.2023

    • Author(s)
      Kuchitsu Y, Mukai K, Uematsu R, Takaada Y, Shinojima A, Shindo R, Shoji T, Hamano S, Ogawa E, Sato R, Miyake K, Kato A, Kawaguchi Y, Nishitani-Isa M, Izawa K, Nishikomori R, Yasumi T, Suzuki T, Dohmae N, Uemura T, Barber GN, Arai H, Waguri S, Taguchi T.
    • Journal Title

      Nature Cell Biology

      Volume: 25 Issue: 3 Pages: 453-466

    • DOI

      10.1038/s41556-023-01098-9

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The UFM1 system regulates ER-phagy through the ufmylation of CYB5R3.2022

    • Author(s)
      Ishimura R, El-Gowily AH, Noshiro D, Komatsu-Hirota S, Ono Y, Shindo M, Hatta T, Abe M, Uemura T, Lee-Okada HC, Mohamed TM, Yokomizo T, Ueno T, Sakimura K, Natsume T, Sorimachi H, Inada T, Waguri S, Noda NN, Komatsu M.
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 7857-7857

    • DOI

      10.1038/s41467-022-35501-0

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Clathrin adapters AP-1 and GGA2 support expression of epidermal growth factor receptor for cell growth.2021

    • Author(s)
      Takefumi Uemura, Takehiro Suzuki, Naoshi Dohmae, Satoshi Waguri
    • Journal Title

      Oncogenesis

      Volume: 10 Issue: 11 Pages: 80-80

    • DOI

      10.1038/s41389-021-00367-2

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Clathrin adaptors AP-1 and GGA2 regulate cell surface expression of EGFR for cell growth2023

    • Author(s)
      Takefumi Uemura, Satoshi Waguri
    • Organizer
      第82回日本癌学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] クラスリンアダプターAP-1複合体によるEGFR発現調節機構2023

    • Author(s)
      植村武文、和栗聡
    • Organizer
      第128回日本解剖学会総会・全国学術集会
    • Related Report
      2023 Annual Research Report 2022 Research-status Report
  • [Presentation] クラスリンアダプターAP-1複合体はEGFR発現を調節する2022

    • Author(s)
      植村武文、和栗聡
    • Organizer
      第68回日本解剖学会東北・北海道連合支部学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] 膜交通によるEGFRの寿命調節機構2022

    • Author(s)
      植村武文、和栗聡
    • Organizer
      日本顕微鏡学会第78回学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Roles of recycling endosome-localized clathrin adaptors AP-1 and GGA2 in regulation of cell surface expression of EGFR for cell growth2022

    • Author(s)
      Takefumi Uemura, Satoshi Waguri
    • Organizer
      第127回日本解剖学会総会全国学術集会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Recycling endosome-localized clathrin adaptors AP-1 and GGA2 regulate cell surface expression of EGFR for cell growth2021

    • Author(s)
      植村武文、和栗聡
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Remarks] 業績[主な研究成果概要]

    • URL

      https://www.fmu.ac.jp/univ/kenkyuseika/research/230314.html

    • Related Report
      2022 Research-status Report

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

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