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Angiogenesis regulated by an endosomal ubiquitin E3 complex

Research Project

Project/Area Number 18K15244
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 50010:Tumor biology-related
Research InstitutionEhime University

Principal Investigator

Masashi Maekawa  愛媛大学, プロテオサイエンスセンター, 講師 (10771917)

Project Period (FY) 2018-04-01 – 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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords血管新生 / 細胞内膜輸送 / Integrin β1 / タンパク質間結合阻害剤 / ユビキチン化基質タンパク質 / 初期エンドソーム / CUL3 / エンドソーム
Outline of Final Research Achievements

The formation of new blood vessels, angiogenesis, is essential for a variety of patho-physiological events. Especially, tumor formation and metastasis require angiogenesis. To date, clinically, anti-angiogenic inhibitors exhibit good efficacy in cancer treatments. Here, we aimed to elucidate the molecular mechanisms by which an endosomal ubiquitin E3 complex, CUL3/ANKFY1, regulates angiogenesis in human endothelial cells. We identified an ANKFY1-interacting protein which is essential for both plasmalemmal localization of integrin beta 1 and angiogenesis. We also established the high through-put screen to identify inhibitors of ANKFY1/ANKFY1-interacting protein using AlphaScreen. Our results suggest the possibility of the protein interaction as a promising target for the development of new anti-angiogenic inhibitors.

Academic Significance and Societal Importance of the Research Achievements

既存の血管新生阻害剤は血管内皮細胞増殖因子 (VEGF)または、VEGF受容体を標的としており、今後の有効な癌治療のためには血管新生阻害剤のレパートリーを拡充する必要がある。本研究で見出したANKFY1とANKFY1結合タンパク質との相互作用は血管新生に必須であるので、当該相互作用に対する阻害剤は新しい血管新生阻害剤のシーズになる得る。モダリティとしては、低分子化合物だけでなく、核酸アプタマーや環状ペプチドが想定される。また、ANKFY1は細胞や組織によって、異なる結合タンパク質と相互作用し、細胞、組織毎に異なる機能的膜タンパク質を輸送している可能性があり、今後の詳細な機能解明が期待される。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (4 results)

All 2020 2019 2018

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

  • [Journal Article] ANKFY1 is essential for retinal endothelial cell proliferation and migration via VEGFR2/Akt/eNOS pathway2020

    • Author(s)
      Tanaka M, Nakamura S, Maekawa M, Higashiyama S, Hara H
    • Journal Title

      Biochem Biophys Res Commun.

      Volume: 533(4) Issue: 4 Pages: 1406-1412

    • DOI

      10.1016/j.bbrc.2020.10.032

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] SNX9 determines the surface levels of integrin β1 in vascular endothelial cells: Implication in poor prognosis of human colorectal cancers overexpressing SNX9.2019

    • Author(s)
      Tanigawa K, Maekawa M, Kiyoi T, Nakayama J, Kitazawa R, Kitazawa S, Semba K, Taguchi T, Akita S, Yoshida M, Ishimaru K, Watanabe Y, Higashiyama S.
    • Journal Title

      J Cell Physiol.

      Volume: in press Issue: 10 Pages: 17280-17294

    • DOI

      10.1002/jcp.28346

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 血管新生を制御するCUL3ユビキチンE3複合体依存的な細胞内膜輸送2018

    • Author(s)
      前川大志,谷川和史,坂上倫久,渡部祐司、田口友彦,東山繁樹
    • Organizer
      第59回 日本生化学会 中国・四国支部例会
    • Related Report
      2018 Research-status Report
  • [Presentation] 前川大志、平間崇、Sergio Grinstein、Gregory D Fairn、東山繁樹2018

    • Author(s)
      コレステロールとホスファチジルセリンが制御する細胞膜の構造と動態
    • Organizer
      第91回 日本生化学会大会
    • Related Report
      2018 Research-status Report
    • Invited

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Published: 2018-04-23   Modified: 2022-01-27  

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