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Investigation of the roles of pericyte K-ATP channel in ischemic stroke

Research Project

Project/Area Number 20K16014
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 47040:Pharmacology-related
Research InstitutionNational Cardiovascular Center Research Institute (2022)
Nippon Medical School (2020)

Principal Investigator

Ando Koji  国立研究開発法人国立循環器病研究センター, 研究所, 室長 (10736010)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsペリサイト / K-ATPチャネル / 脳梗塞 / Abcc9 / Kcnj8
Outline of Research at the Start

毛細血管支持細胞であるペリサイト選択的に発現することを見出 した、K ir6.1および Sur2Bヘテロ複合体から構成されるATP依存性カリウムチャネル(K-ATPチャネル) の脳梗塞時における役割を明らかにし、本ペリサイト選択的K-ATPチャネルに対する選択的作動薬を用いた新規脳梗塞治療への発展を目指す。

Outline of Final Research Achievements

In this study we have tried to clarify the role of ATP-dependent potassium channels (K-ATP channels) composed of KCNJ8 and ABCC9, which are pericyte-selectively expressed in the brain, on ischemic stroke. To this end, utilizing genetically modified mice which can control pericyte K-ATP channel function and K-ATP channel-targeting drugs, we analyzed the infarct area, neurological functions, cerebral blood flow, and blood-brain barrier permeability. Through the analysis, we found that pericyte K-ATP channel activity may have an important role in the protecting neurons after transient cerebral ischemia.

Academic Significance and Societal Importance of the Research Achievements

本法では脳梗塞は高い死亡率に加え、発症後の要介護リスクの第2位を占めており、その克服が強く望まれる。本研究を遂行することにより、ペリサイトK-ATPチャネルが脳梗塞に対する治療標的となる可能性が示唆されつつあり、今後のペリサイトを焦点とした脳梗塞治療戦略の発展が見込まれ、本研究はその嚆矢としても重要な知見を提供するものである。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (7 results)

All 2023 2021 2020 Other

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

  • [Int'l Joint Research] Uppsala university/Karolinska Institutet(スウェーデン)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Protocol for analysis of integrin-mediated cell adhesion of lateral plate mesoderm cells isolated from zebrafish embryos2021

    • Author(s)
      Rho Seung-Sik、Oguri-Nakamura Eri、Ando Koji、Yamamoto Kiyotake、Takagi Yuki、Fukuhara Shigetomo
    • Journal Title

      STAR Protocols

      Volume: 2 Issue: 2 Pages: 100428-100428

    • DOI

      10.1016/j.xpro.2021.100428

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Conserved and context-dependent roles for Pdgfrb signaling during zebrafish vascular mural cell development2021

    • Author(s)
      Ando Koji、Shih Yu-Huan、Ebarasi Lwaki、Grosse Ann、Portman Daneal、Chiba Ayano、Mattonet Kenny、Gerri Claudia、Stainier Didier Y.R.、Mochizuki Naoki、Fukuhara Shigetomo、Betsholtz Christer、Lawson Nathan D.
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2021.03.29.437552

    • Related Report
      2020 Research-status Report
    • Open Access / Int'l Joint Research
  • [Presentation] Investigation of molecular mechanisms underlying pericyte development.2023

    • Author(s)
      Koji Ando
    • Organizer
      第100回 日本生理学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Investigation of the molecular mechanism underlying mural cell specification in zebrafish2021

    • Author(s)
      安藤 康史 、福原 茂朋
    • Organizer
      第28回日本血管生物医学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] Roles of pericytes in wound angiogenesis clarified by live imaging of adult zebrafish.2021

    • Author(s)
      石井智裕,弓削進弥,野一色千景,安藤康史,望月直樹,福原茂朋
    • Organizer
      第28回日本血管生物医学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] ペリサイトによる血管新生制御機構の解明2020

    • Author(s)
      石井智裕,弓削進弥,安藤康史,福原茂朋
    • Organizer
      第6回 日本血管生物医学若手研究会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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