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非小細胞肺がん患者の免疫と生存における差異:腸内微生物群の視点
Hao Liao1, Xiangping Luo1, Liqin Jiang2
1Department of Orthopedics, The Affiliated Hengyang Hospital of Hunan Normal University (Hengyang Central Hospital) Hengyang 421001, Hunan, China.
American journal of translational research
|February 12, 2026
まとめ
BifidobacteriumやLactobacillusのような有益な腸内細菌は,免疫チェックポイント阻害剤で治療された非小細胞肺がん (NSCLC) 患者において,よりよい免疫反応と関連している. 逆に,エンテロコッカス菌とE. coli菌は,より悪い結果と相関しています.
科学分野:
- 腫瘍学 腫瘍学
- マイクロバイオーム研究
- 免疫学 免疫学とは
背景:
- 腸内微生物群の組成は,がん治療の有効性の調節剤としてますます認識されています.
- 腸内細菌と宿主免疫の相互作用を理解することは,非小細胞肺がん (NSCLC) の治療結果を改善するために重要です.
研究 の 目的:
- 特定の腸内細菌 (Enterococcus, Escherichia coli, Bifidobacterium, Lactobacillus) と中国人のNSCLC患者の免疫機能との関連を調査する.
- 免疫チェックポイント阻害剤 (ICI) に対する反応を含む,腸内微生物群,免疫状態,および予後との関係を調査する.
主な方法:
- 208人のNSCLC患者の主要な細菌集団の糞便サンプルを定量分析した.
- 外周血液中のTリンパ球サブセット (CD3+,CD4+,CD8+) をフローサイトメトリーで測定する.
- 微生物の豊富さ,免疫変数,および6ヶ月のICI有効性および生存結果の間の相関分析.
主要な成果:
- ICIに反応した人はBifidobacteriumとLactobacillusのレベルが高く,反応しなかった人はEnterococcusとE. coliのレベルが高くなった.
- BifidobacteriumとLactobacillusはT細胞数と正の相関関係があり,炎症性サイトカイン (IL-6,TNF-α) と負の相関関係がある.
- エントロコッカスとE. coliはT細胞との負の相関関係と,炎症性サイトカインとの正の相関関係を示した.
結論:
- BifidobacteriumとLactobacillusは,抗炎症効果とT細胞活性化を促進し,NSCLCの抗腫瘍免疫をサポートしています.
- これらの発見は,腸内微生物群を調節して,NSCLC患者の免疫反応と治療効果を高める可能性を示しています.
キーワード:
NSCLCLCは,NSCLCLCは,NSCLCLCは,NSCLCLCは,NSCLCLCは,NSCLCは,NSCLCは,NSCLCは,NSCLCは,NSCLCは,NSCLCは,NSCLCは,NSCLCは,NSCLCは,NSCLCは,NSCLCは,NSCLCは,NSCLCは,NSCLCは,NSCLCは腸内微生物群 (gut microbiota) とは,腸内微生物群 (gut microbiota) とは,腸内微生物群 (gut microbiota) とは,腸内微生物群 (gut microbiota) とは,腸内微生物群 (gut microbiota) とは,腸内微生物群 (gut microbiota) とは,免疫細胞 免疫細胞 免疫細胞炎症要因である炎症因子予後予測 予後予測関連する概念動画
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