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Identification of endothelial cell origin microRNA as a clinical marker and therapeutic target of EBI after SAH

Research Project

Project/Area Number 19K09516
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56010:Neurosurgery-related
Research InstitutionKeio University

Principal Investigator

Takahashi Satoshi  慶應義塾大学, 医学部(信濃町), 講師 (20383870)

Co-Investigator(Kenkyū-buntansha) 荒井 信彦  慶應義塾大学, 医学部(信濃町), 助教 (80793801)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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)
Keywordsくも膜下出血 / マイクロRNA / 早期脳障害 / 早期脳損傷 / 虚血性脳障害 / 脳血管攣縮 / 脳血管内皮細胞 / Neurovascular Unit / 虚血再灌流
Outline of Research at the Start

本研究ではくも膜下出血(SAH)の転帰を改善すべく、特にその予後不良因子である早期脳損傷(EBI)とそれに起因する遅発性脳虚血(DCI)に対する新規診断・治療法の確立を目指す。研究では、まずSAHモデルマウスから単離した脳毛細血管内皮細胞において発現が変化するEBIのトリガーとなるマイクロRNAを同定し、それらがSAH後のEBIおよびDCIの体液中マーカーとなる可能性を検証する。さらにその機能解析を通じて、マイクロRNAないしその標的遺伝子産物をSAH発症後早期に修飾することで、EBIおよびDCIを軽減し得る可能性の検証を行う。

Outline of Final Research Achievements

The brain capillary endothelial cell was isolated from the SAH model mouse, and the research was carried out in order to clarify the gene expression change after SAH specialized for the endothelial cell which suffered from EBI, and to identify the microRNA detectable in the peripheral blood which is concerned in the gene expression change in the brain capillary endothelial cell. Hsa-miR-619-5p whose expression was elevated in the peripheral blood of patients with subarachnoid hemorrhage had targeted Gpx8, Soat1, and Rgs16 whose expression was decreased in capillary endothelial cells after subarachnoid hemorrhage, suggesting that hsa-miR-619-5p may be a microRNA that can be used as biomarkers of EBI detectable in the peripheral blood involved in gene expression changes after SAH specialized for brain capillary endothelial cells that gave rise to EBI.

Academic Significance and Societal Importance of the Research Achievements

本研究において同定したhsa-miR-619-5pはこれまで報告がないくも膜下出血後の早期脳障害(EBI)に関するバイオマーカーとして臨床上有用なマイクロRNAである可能性がある。EBIを早期の時点で客観的に捉える指標が確立されれば、EBIおよび続発するDCIに対して備えることが可能になり、壮年期にも発症し、重篤な後遺症を残し得る疾患であるがゆえにその予後改善が社会的にも大きな意義があると期待される疾患であるくも膜下出血の予後改善に寄与し得るものと期待する。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (7 results)

All 2021 2020

All Journal Article (5 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (2 results)

  • [Journal Article] くも膜下出血後脳血管攣縮2021

    • Author(s)
      高橋 里史
    • Journal Title

      救急・集中治療

      Volume: 33 Pages: 216-222

    • Related Report
      2020 Research-status Report
  • [Journal Article] Loss of consciousness at ictus and/or poor World Federation of Neurosurgical Societies grade on admission reflects the impact of EBI and predicts poor outcome in patients with SAH2020

    • Author(s)
      Satoshi Takahashi, Takenori Akiyama, Takashi Horiguchi, Tomoru Miwa, Ryo Takemura, Kazunari Yoshida
    • Journal Title

      Surg Neurol Int .

      Volume: 11 Pages: 40-40

    • DOI

      10.25259/sni_551_2019

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Early prediction of clinical outcomes in patients with aneurysmal subarachnoid hemorrhage using computed tomography texture analysis2020

    • Author(s)
      Tokunori Kanazawa, Satoshi Takahashi, Yasuhiro Minami, Masahiro Jinzaki, Masahiro Toda, Kazunari Yoshida
    • Journal Title

      J Clin Neurosci .

      Volume: 71 Pages: 144-149

    • DOI

      10.1016/j.jocn.2019.08.098

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Loss of consciousness at ictus and/or poor World Federation of Neurosurgical Societies grade on admission reflects the impact of EBI and predicts poor outcome in patients with SAH.2020

    • Author(s)
      Takahashi S, Akiyama T, Horiguchi T, Miwa T, Takemura R, Yoshida K.
    • Journal Title

      Surg Neurol Int.

      Volume: -

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Early prediction of clinical outcomes in patients with aneurysmal subarachnoid hemorrhage using computed tomography texture analysis.2020

    • Author(s)
      Kanazawa T, Takahashi S, Minami Y, Jinzaki M, Toda M, Yoshida K.
    • Journal Title

      J Clin Neurosci.

      Volume: 71 Pages: 144-149

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] くも膜下出血患者におけるmicroRNA発現プロファイルの検討2021

    • Author(s)
      高橋里史 戸田正博
    • Organizer
      第21回日本分子脳神経外科学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] くも膜下出血早期脳損傷の内皮細胞にターゲットを置いた検討2021

    • Author(s)
      小池和成, 高橋里史, 山田浩貴, 水谷克洋, 秋山武紀, 堀口崇
    • Organizer
      第37回スパズムシンポジウム
    • Related Report
      2020 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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