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2021 Fiscal Year Final Research Report

Investigation of metabolomic/endocrine dysfunction that triggers the onset of atopic dermatitis

Research Project

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Project/Area Number 20K16164
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 49010:Pathological biochemistry-related
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

MIYAI Tomohiro  国立研究開発法人理化学研究所, 生命医科学研究センター, 研究員 (30812549)

Project Period (FY) 2020-04-01 – 2022-03-31
Keywordsアトピー性皮膚炎 / 代謝 / 多臓器連関
Outline of Final Research Achievements

In my previous study, I found that abnormal hypersecretion of the hormone protein X was observed in a mouse model of atopic dermatitis (AD). In this study, we aimed to elucidate the mechanism of action of X in AD. The results showed that X contributes to the pathogenesis of AD in a facilitative manner, suggesting that X-dependent systemic metabolic abnormalities may contribute to the pathogenesis of AD. Furthermore, I measured the amount of X in plasma from human AD patients. I confirmed abnormally high levels of X in 7 out of 36 samples. In addition, the correlation analysis between the blood levels of X and blood test data showed a strong correlation with a group of molecules metabolized in the liver. These results suggest that AD patients with high blood levels of X have a characteristic pathology associated with abnormalities in the liver.

Free Research Field

皮膚科学

Academic Significance and Societal Importance of the Research Achievements

アトピー性皮膚炎(AD)は遺伝的要因と幅広い環境要因の双方が発症に寄与する多因子疾患であり、患者間でそれらの要因の組み合わせは大きく異なることから、その発症メカニズムも多様性をもつことが指摘されている。これが原因となり、依然として寛解に導く治療法は確立しておらず、個別化医療の実現に大きな期待がかけられている。本研究において、血中のX高値を呈するAD患者群が見出され、その特徴として肝臓で代謝される分子の血中量の異常が認められることを明らかにした。このことより、この特徴的な患者群に対してXを標的とした分子的介入が奏功する可能性が考えられ、ADに対する個別化医療の実現に大きく貢献すると期待される。

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Published: 2023-01-30  

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