2021 Fiscal Year Final Research Report
Activin E-Knockout mice as a useful animal model of obesity/diabetes
Project/Area Number |
19K06427
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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 42020:Veterinary medical science-related
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Research Institution | Nagahama Institute of Bio-Science and Technology (2021) Kitasato University (2019) |
Principal Investigator |
Hashimoto Osamu 長浜バイオ大学, バイオサイエンス学部, 教授 (90317058)
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Project Period (FY) |
2019-04-01 – 2022-03-31
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Keywords | 脂肪肝 / 代謝 / 肥満 |
Outline of Final Research Achievements |
Activin E is a novel hormone derived from the liver that activates brown and beige fat to enhance energy metabolism and insulin sensitivity. Activin E-Knockout (Act E-KO) mice fed a high-fat diet showed ectopic fat accumulation in the liver and central venous fatty liver in a short period of time. Histologically, the livers of the mice showed ballooning of hepatocytes and Mallory bodies, which are characteristic of NASH. In conclusion, since the prevalence of non-alcoholic fatty liver disease (NAFLD), including NASH, has been increasing in recent years, Act E-KO mice could be a potential model mouse for NAFLD/NASH.
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Free Research Field |
疾患生物学
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Academic Significance and Societal Importance of the Research Achievements |
アルコール多飲歴が無いにも関わらず発症する非アルコール性脂肪性肝疾患(NAFLD)は、内蔵型肥満、糖尿病、脂質異常症、インスリン抵抗性と深く関連するため、メタボリックシンドロームの肝臓における表現型と考えられ、近年、その患者数は増加している。また、NAFLDのうち、肝臓実質細胞の壊死や炎症所見を伴う非アルコール性脂肪肝炎(NASH)は,NAFLDの進行性慢性疾患である。NASHは肝硬変や肝癌へと進行するため積極的な治療介入が必要である。以上から、本研究は、これらの疾患の予防、診断、治療法の開発に有意義であると考えられる。
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