2023 Fiscal Year Final Research Report
Preventive effect of exercise on systemic inflammation caused by S1 of SARS-CoV-2 and its mechanism
Project/Area Number |
21K11472
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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 59020:Sports sciences-related
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Research Institution | Kyorin University |
Principal Investigator |
Shirato Ken 杏林大学, 医学部, 講師 (60559384)
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Project Period (FY) |
2021-04-01 – 2024-03-31
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Keywords | SARS-CoV-2 / スパイクタンパク質 / マクロファージ / 炎症性応答 / 習慣的運動 / シグナル伝達 / インフラマソーム / 機能性食品 |
Outline of Final Research Achievements |
To elucidate the role of spike (S) protein in severe inflammation caused by SARS-CoV-2 and its mechanism, and the preventive effect of habitual exercise on S protein-induced systemic inflammation, we first investigated the effects of habitual exercise on the pro-inflammatory response of macrophages triggered by the S protein. The results obtained from in vitro experiments suggested that habitual exercise does not affect at least the sensitivity of peritoneal exudate macrophages to the S protein. Subsequently, an overseas research group reported that the envelope (E) protein, rather than the S protein, mainly contributes to systemic inflammation caused by SARS-CoV-2 infection. Therefore, we plan to continue investigating the preventive effect of habitual exercise on systemic inflammation caused by the E protein.
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Free Research Field |
衛生学
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Academic Significance and Societal Importance of the Research Achievements |
本研究成果の学術的意義は、COVID-19の重度炎症において重要な役割を果たしている末梢血単球由来マクロファージのSタンパク質に対する感受性に対して、習慣的運動は抑制効果を及ぼさないことを示唆する実験結果を得た点にある。2021年11月頃に生じたデルタ株からオミクロン株への変異以降、COVID-19の重症化例はあまり見かけられなくなった。しかし、Eタンパク質やSタンパク質による全身炎症に対する習慣的運動の予防効果の検討を今後も継続することは、運動の抗炎症効果の科学的根拠の一端の明らかにし、健康増進における運動の有用性を立証する上で社会的意義があると考えられる。
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