コンメンサル-デンドリット細胞の相互作用は,独特の保護性皮膚の免疫シグネチャーシグネチャーを特定します
Shruti Naik1, Nicolas Bouladoux1, Jonathan L Linehan1
11] Immunity at Barrier Sites Initiative, National Institute of Allergy and Infectious Diseases, NIH, Bethesda 20892, USA [2] Mucosal Immunology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland 20892, USA.
Nature
|December 25, 2014
まとめ
Staphylococcus epidermidisのような特定の皮膚の微生物は,免疫細胞を訓練し,皮膚の障壁を保護します. この研究は,皮膚の免疫システムが病原体防御のために微生物の信号を使用する方法を示しています.
科学分野:
- 免疫学 免疫学とは
- 微生物学 微生物学とは
- 皮膚科 皮膚科について
背景:
- 皮膚には,ホメオスタシスと免疫に不可欠な多様な微生物が宿っている.
- 特定の共生微生物が皮膚免疫に与える影響は完全に理解されていません.
- 皮膚の微生物コミュニティはダイナミックで,環境の変化に反応します.
研究 の 目的:
- 個々の共生微生物が皮膚免疫を調節する方法を調査する.
- これらの免疫反応の基礎となる細胞メカニズムを特定する.
- 組織生理学と宿主の防御に及ぼす影響を理解する.
主な方法:
- コロニー化実験は,定義された共生動物,特にStaphylococcus epidermidis. を用いたものです.
- 皮膚のT細胞およびデンドリート細胞を含む免疫細胞集団の分析.
- 病原菌の侵入に対するバリア免疫と反応の評価.
主要な成果:
- Staphylococcus epidermidisのコロニー化は,上皮のIL-17A (((+)) CD8 (((+)) T細胞を誘導する.
- これらのT細胞は,先天的なバリア免疫を強化し,病原体の侵入を制限します.
- コメンサル特異のT細胞反応は,炎症を引き起こすことなく,皮膚に宿る dendritic 細胞によって媒介されます.
結論:
- 皮膚の免疫システムは,特定のコンメンサールにダイナミックに反応する.
- 組織に居住する免疫細胞は,微生物コミュニティのシフトを感知するために準備されています.
- この相互作用は皮膚の免疫を調整し,病原体に対する保護を提供し,皮膚疾患への影響を及ぼします.
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