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2023 Fiscal Year Final Research Report

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

Research Project

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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
KeywordsARDS / SETDB2 / ヒストンメチル化
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.

Free Research Field

敗血症

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。

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Published: 2025-01-30  

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