2022 Fiscal Year Final Research Report
Mechanism for biosynthesis and degradation of lipid molecules controlling appetite and lipid metabolism
Project/Area Number |
20K11571
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 59040:Nutrition science and health science-related
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Research Institution | Kawasaki Medical School |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
北風 圭介 川崎医科大学, 医学部, 助教 (80840545)
竹之内 康広 川崎医科大学, 医学部, 講師 (30582233)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | 肥満 / 脂質代謝 / 脂質メディエーター / リソソーム酵素 / セラミド / N-アシルエタノールアミン |
Outline of Final Research Achievements |
N-Acylethanolamines are lipid mediators showing several bioactivities including appetite suppression and lipolysis. In the present study, we focused on their degrading enzymes. Our cell- and animal tissue-level analyses revealed that acid ceramidase, which has been recognized as a ceramide-hydrolyzing enzyme, is actually involved in the hydrolysis of N-acylethanolamines. Furthermore, we found that LAMCA, a fluorescent substrate of this enzyme, is also a substrate of a similar enzyme, N-acylethanolamine acid amidase; which should be considered when using this substrate.
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Free Research Field |
脂質生物学
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Academic Significance and Societal Importance of the Research Achievements |
本研究の学術的意義として、脂質メディエーターであるN-アシルエタノールアミンの新たな代謝酵素として、酸性セラミダーゼを明らかにしたことが挙げられる。同時に、蛍光色素を用いた本酵素の活性測定の問題点が浮き彫りとなった。社会的意義としては、新たなN-アシルエタノールアミン代謝酵素の発見により、本酵素の阻害という新たな作用機序を持つ抗肥満薬の開発に繋がる可能性を有することが挙げられる。
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