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Investigation of ARDS molecular mechanism throw vascular entohelial cells - Histon methyltransferase protein SETDB2 -

Research Project

Project/Area Number 20K09310
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55060:Emergency medicine-related
Research InstitutionNara Medical University

Principal Investigator

SONOBE SHOTA  奈良県立医科大学, 医学部, 助教 (90771808)

Co-Investigator(Kenkyū-buntansha) 北畠 正大  奈良県立医科大学, 医学部, 講師 (60457588)
小田 朗永  奈良県立医科大学, 医学部, 研究員 (80547703)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
KeywordsARDS / SETDB2 / ヒストンメチル化 / エピジェネティクス / Setdb2 / 急性呼吸促拍症候群 / 血管内皮細胞
Outline of Research at the Start

本研究は、ARDSという急性炎症時における肺血管透過性について、エピジェネティクスがどのように関連しているのかを、ヒストンメチル化蛋白であるSETDB2を用いて解析することを目的とする。血管透過性の変化については血管内皮細胞および血管内皮グリコカリックスが関与していることが明らかとされているが、本研究においては、それらとSETDB2の関係性を明らかとしたい。

Outline of Final Research Achievements

ARDS is a severe disease that can lead to death, and its molecular mechanisms remain unclear even now.We focused on the involvement of vascular endothelial cells in the mechanism of ARDS aggravation, and the expression of the histone methyltransferase SETDB2 in vascular endothelial cells.We demonstrated that the severity of ARDS increases in mice lacking SETDB2 specifically in vascular endothelial cells, and elucidated the mechanism by which this occurs: SETDB2 is involved in the apoptosis of vascular endothelial cells in ARDS lungs.
We also confirmed that SETDB2 was elevated in the ARDS patients serum, and found that the degree of SETDB2 elevation correlated with the severity of ARDS.

Academic Significance and Societal Importance of the Research Achievements

ARDSはCOVID-19を経て、広く周知された。その重症度は患者ごとにさまざまであり、重症化するメカニズムは未だにわかっていない。この研究は、ARDSの重症化にエピジェネティクス(遺伝情報の伝達メカニズム。遺伝子配列は変えずに、遺伝情報を変化させること。)が関わっていることに着目した点で新規性の高い研究である。エピジェネティクスという概念が炎症疾患に関わっていることを明らかとした点は学術的に意義があると考える。またARDS重症化メカニズムのひとつとして、ヒストンメチル化蛋白SETDB2が関わっていることを通して社会のARDSへの認知がさらに進むと予想され、社会的意義があると考える。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (3 results)

All 2023 2021

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

  • [Journal Article] The critical role of the histone modification enzyme SETDB2 in the pathogenesis of acute respiratory distress syndrome2023

    • Author(s)
      Sonobe Shota、Kitabatake Masahiro、Hara Atsushi、Konda Makiko、Ouji-Sageshima Noriko、Terada-Ikeda Chiyoko、Furukawa Ryutaro、Imakita Natsuko、Oda Akihisa、Takeda Maiko、Takamura Shiki、Inoue Satoki、Kunkel Steven L.、Kawaguchi Masahiko、Ito Toshihiro
    • Journal Title

      Shock

      Volume: 60 Issue: 1 Pages: 137-145

    • DOI

      10.1097/shk.0000000000002145

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Disintegrin and Metalloproteinase with Thrombospondin Motifs 4 Regulates Pulmonary Vascular Hyperpermeability through Destruction of Glycocalyx in Acute Respiratory Distress Syndrome2023

    • Author(s)
      Konda Makiko、Kitabatake Masahiro、Ouji-Sageshima Noriko、Tonomura Rei、Furukawa Ryutaro、Sonobe Shota、Terada-Ikeda Chiyoko、Takeda Maiko、Kawaguchi Masahiko、Ito Toshihiro
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Issue: 22 Pages: 16230-16230

    • DOI

      10.3390/ijms242216230

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Histone modification enzyme SET domain bifurcated 2 (Setdb2) contributes to the pathogenesisloss in vascular endothelial cells leads ofto exacerbation of acute respiratory distress syndrome (ARDS) in murine model.2021

    • Author(s)
      Shota Sonobe
    • Organizer
      第50回日本免疫学会学術集会
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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