伊诺辛可以增强婴儿抗病毒免疫力
1Department of Visceral Surgery and Medicine, Bern University Hospital, Bern, Switzerland; Maurice Müller Laboratories, Department for Biomedical Research, University of Bern, Bern, Switzerland.
Trends in immunology
|August 8, 2025
概括
早期接触抗生素会通过破坏肠道细菌来损害婴儿的抗病毒防御. 肠道微生物产生的代谢物 inosine 恢复T细胞功能,增强肺部对呼吸道病毒的免疫力.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 代谢学 代谢学 代谢学
背景情况:
- 早期的抗生素暴露可能会对肠道微生物群组成产生负面影响.
- 新生儿肠道微生物群的破坏与免疫系统发育受损有关,特别是抗病毒反应.
研究的目的:
- 研究微生物代谢物对新生儿抗生素诱导的免疫缺陷的保护作用.
- 为了确定可以在早期接触抗生素后恢复抗病毒免疫力的特定代谢物.
主要方法:
- 利用小鼠模型研究早期抗生素暴露对肠道微生物群和免疫反应的影响.
- 分析了肠道细菌代谢物伊诺辛对T细胞功能和基因调节的影响.
- 评估肺部对呼吸道病毒感染的免疫防御.
主要成果:
- 早期的抗生素暴露导致肠道微生物群的显著改变,并损害了T细胞介导的抗病毒免疫力.
- 给予伊诺辛恢复了抗病毒T细胞的功能,即使存在抗生素诱导的微生物群破坏.
- 伊诺调节了免疫细胞中的基因表达,增强了肺部的免疫防御,改善了对抗呼吸道病毒感染的结果.
结论:
- 肠道微生物群衍生代谢物,如因诺辛,在塑造新生儿免疫反应中起着至关重要的作用.
- 伊诺辛是一种潜在的治疗策略,可以抵消早期抗生素暴露对抗病毒免疫力的有害影响.
- 恢复微生物代谢物水平可能是加强婴儿对常见呼吸道病原体的免疫防御的关键.
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