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2021 Fiscal Year Final Research Report

Mechanisms of pulmonary vascular pathogenesis mediated by group 2 innate lymphoid cell

Research Project

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Project/Area Number 19K07632
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 49070:Immunology-related
Research InstitutionHiroshima University (2020-2021)
National Center for Global Health and Medicine (2019)

Principal Investigator

Ikutani Masashi  広島大学, 統合生命科学研究科(生), 助教 (40513718)

Project Period (FY) 2019-04-01 – 2022-03-31
Keywords2型自然リンパ球 / 好酸球 / IL-33 / IL-5 / 肺動脈肥厚
Outline of Final Research Achievements

Pulmonary arterial hypertension is an intractable disease and characterized by severe obstruction of small pulmonary arteries, leading to progressive right ventricular failure. The etiologic mechanism of pathogenesis of pulmonary arteries remains largely elusive. This study aims at elucidating the mechanism by means of a mouse model in which group 2 innate lymphoid cells (ILC2s) initiate severe arterial hypertrophy. In this project, a molecule that was key to regulate ILC2s was newly identified. An inhibitor to the molecule was effective at reducing arterial hypertrophy, contributing to development of therapeutic drugs.

Free Research Field

免疫学

Academic Significance and Societal Importance of the Research Achievements

我が国に今後到来する超高齢化社会では膠原病などの疾患はさらに拡大し、膠原病に合併する肺動脈性肺高血圧症も増加の一途を辿ると危惧されている。これまでにも多くの研究が実施されてきたが、肺動脈性肺高血圧症の発症機序は依然として不明である。本研究は新たなアプローチから発症機序の解明を試みたものであり、これまでに想定されていなかった細胞や分子の特定に至った。同定された分子は制御可能であり、新規治療法の開発に貢献するものである。

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Published: 2023-01-30  

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