2022 Fiscal Year Final Research Report
Construction of a new drug discovery platform for atopic dermatitis
Project/Area Number |
21K19375
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Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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Allocation Type | Multi-year Fund |
Review Section |
Medium-sized Section 49:Pathology, infection/immunology, and related fields
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Research Institution | Kyoto University |
Principal Investigator |
KAKIZUKA AKIRA 京都大学, 生命科学研究科, 教授 (80204329)
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Project Period (FY) |
2021-07-09 – 2023-03-31
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Keywords | アトピー性皮膚炎 / p97/VCP / 治療薬 / Th2型アレルギー反応 |
Outline of Final Research Achievements |
We have conducted research aiming to discover new treatments for incurable diseases and have developed novel compounds called Kyoto University Substances (KUSs). One of them, KUS121, has shown the ability to dramatically improve pathological conditions in retinitis pigmentosa, glaucoma, Parkinson's disease, cerebral infarction, myocardial infarction, and others, based on experiments using disease animal models. In this study, we used this KUS121 to verify its therapeutic effects on a mouse model of atopic dermatitis. As a result, the application of KUS121 suppressed the Th2-type immune response, which is the cause of atopic dermatitis, and dramatically inhibited skin thickening and inflammation, while maintaining the skin's barrier function. Furthermore, the scratching behavior of mice against itching was also dramatically reduced. These findings strongly suggest that KUS121 holds great promise as a novel therapeutic candidate for atopic dermatitis.
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Free Research Field |
創薬科学、分子細胞生物学
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Academic Significance and Societal Importance of the Research Achievements |
近年、アトピー性皮膚炎代表されるTh2型のアレルギー性疾患に罹患する患者が急増している。アトピー性皮膚炎は、激しいかゆみによって学童の勉学に支障が生じ、学業成績低下の主な原因となっている。また、かゆみによる睡眠不足や集中力不足によって、多大な経済的なロスをもたらしている。治療としては、全世界的にステロイドの外用剤が用いられているが、副作用への不安から非ステロイド性の治療薬の開発が切望されていた。本研究により、KUS121は、ステロイドに代わる、新たなアトピー性皮膚炎治療薬として極めて有望な化合物であることが示された。
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