2023 Fiscal Year Final Research Report
Role of ATP6ap2 in salt-driven muscle wasting
Project/Area Number |
21K17685
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 59040:Nutrition science and health science-related
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Research Institution | Kagawa University |
Principal Investigator |
Kitada Kento 香川大学, 医学部, 助教 (30882493)
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Project Period (FY) |
2021-04-01 – 2024-03-31
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Keywords | ATP6ap2 / 筋萎縮 / 塩 |
Outline of Final Research Achievements |
Sarcopenia accompanied by aging and modern lifestyles is directly related to a decline in healthy life expectancy, however, the mechanisms of muscle atrophy remain to be clarified. We have reported that high salt intake is a risk for muscle atrophy. We performed bioinformatics analysis using RNA sequence data from the muscle of high salt-fed mice and found that ATP6ap2 is associated with high salt-induced muscle wasting. Administration of a vaccine against ATP6ap2 prevented high salt-induced muscle atrophy. A patent application has been completed for the vaccine, including its efficacy in preventing muscle atrophy.
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Free Research Field |
薬理学・生理学・病態生理学
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Academic Significance and Societal Importance of the Research Achievements |
本邦は超高齢化社会を迎え、いかに健康寿命を延長させるかが緊急課題となっている。加齢や現代の生活習慣は、筋肉量および筋力の低下を引き起こし、骨折、代謝疾患、寝たきり、死亡などのリスクを上昇させ健康寿命を低下させてしまうが、その発症・進展機序の詳細は不明である。本研究では、高食塩摂取に伴う筋萎縮のメカニズムにATP6ap2が関与すること、また、ATP6ap2に対するワクチン投与により、高食塩摂取による筋委縮を予防できることも見出した。本研究を基盤とした将来的な研究により、食塩の摂り過ぎや加齢に伴う筋委縮を、ATP6ap2を標的としたワクチンにより克服し、健康寿命の延長を達成したい。
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