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2023 Fiscal Year Final Research Report

Novel lipid metabolic signaling regulating ectopic osteoblast differentiation in the aortic valve.

Research Project

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Project/Area Number 20K21632
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 55:Surgery of the organs maintaining homeostasis and related fields
Research InstitutionEhime University

Principal Investigator

Izutani Hironori  愛媛大学, 医学系研究科, 教授 (90419200)

Co-Investigator(Kenkyū-buntansha) 坂上 倫久  愛媛大学, 医学系研究科, 講師(特定教員) (20709266)
Project Period (FY) 2020-07-30 – 2024-03-31
Keywords大動脈弁狭窄症 / 石灰化 / 骨芽細胞 / プロスタグランジン
Outline of Final Research Achievements

Aortic valve stenosis (AS) is a common heart valve disease characterized by calcification and fibrosis of the valve. The mechanism underlying calcification in aortic valve tissue is not yet understood, and elucidating this mechanism is crucial for developing drug therapies for AS. In this study, we focused on prostaglandin-metabolizing enzymes and their metabolites, aiming to clarify the role of these molecules in the differentiation into osteoblasts, which are important for tissue calcification. As a result, we found that a novel prostaglandin-metabolizing enzyme plays a significant role in inducing osteoblast differentiation.

Free Research Field

心臓血管外科学

Academic Significance and Societal Importance of the Research Achievements

大動脈弁組織において大動脈弁間質細胞から骨芽細胞へと分化する細胞内シグナルの鍵分子として同定されたプロスタグランジン代謝酵素やその代謝産物は、AS進行を抑制する新しい薬剤の標的分子として有用である可能性がある。今回の成果はin vitro実験系やヒト大動脈弁組織を用いた研究成果ではあるため、臨床への応用のためには、ヒト病態を再現するモデル動物を用いた検証実験が必要不可欠ではあるが、今回得られた研究成果はASの新規薬物治療法開発のための今後の研究に生かされるものと考えられる。

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Published: 2025-01-30  

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