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Updated: Sep 9, 2025

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Evaluation of Host-Pathogen Responses and Vaccine Efficacy in Mice
Published on: February 22, 2019
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免疫反応における腸内微生物の新興する役割
V Decker1, K Qureshi1, L Roberts2
1Division of Digestive Diseases, Department of Metabolism- Digestion and Reproduction, Imperial College London, London, UK.
Gut microbes
|August 30, 2025
まとめ
腸内微生物群が ワクチンの効能に影響します 腸内細菌を調節することで,特にSARS-CoV-2,B型肝炎,インフルエンザワクチンのワクチンの反応が改善される可能性があります.
科学分野:
- 免疫学
- 微生物学
- ワクチン学
背景:
- 腸内微生物群は宿主の免疫反応に 大きく影響します
- ワクチンの有効性の個別の変動は,従来の要因によって完全に説明されていません.
- 腸内微生物群は ワクチンの反応の重要な調節因子として 認識されつつあります
研究 の 目的:
- 腸内微生物群とワクチンの反応を結びつける現在の証拠をレビューする.
- SARS-CoV-2,B型肝炎ウイルス,インフルエンザに対するワクチンに重点を置く.
- ワクチンの有効性を高めるために微生物群を標的とした戦略の可能性を調査する.
主な方法:
- 腸内微生物の組成と免疫性との関連を調べたヒトの研究のレビュー
- 微生物代謝産物と免疫細胞機能とサイトカイン生成への影響の分析
- 実験モデル (細菌のない,抗生物質を投与した動物) と介入研究 (プレバイオティクス,プロバイオティクス) の検討
主要な成果:
- *Bifidobacterium adolescentis* のような特定の腸内細菌は,ワクチンの免疫性に関連しています.
- 微生物代謝産物 (短鎖脂肪酸,胆酸) はT細胞の分化,抗体生成,およびサイトカイン反応を調節する.
- 微生物群の組成 (抗生物質,食事,サプリメント) を変化させる要因は,動的腸免疫関係を示すワクチン反応に影響する.
結論:
- 腸内微生物群は ワクチンによる免疫形成に 重要な役割を果たします
- 微生物群を標的とした戦略は,ワクチンの有効性を改善する見込みです.
- これらの戦略を最適化するために,特に免疫力が低下した集団に対して,さらなる研究が必要である.
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