在小鼠结肠炎模型中,Aedes albopictus的重复咬伤重新塑造了肠道微生物群,并重新调整了炎症读数
Zhiqiang Li1,2,3, Xiaoyuan Kuang1,2,4, Ge Shan2
1Guizhou Key Laboratory of Microbio and Infectious Disease Prevention and Control, Guizhou Medical University, Guiyang, China.
Frontiers in microbiology
|December 10, 2025
概括
反复的蚊子咬会破坏肠道微生物群,改变其组成和稳定性. 这种载体暴露会影响宿主在炎症状况如结肠炎期间的免疫反应.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 生态生态学 生态生态学
背景情况:
- 肠道微生物群对于宿主健康和免疫平衡至关重要.
- 环境因素可能会破坏肠道微生物的共生.
- 重复的载体咬伤对肠道微生物群的影响在很大程度上是未被探索的.
研究的目的:
- 为了研究Aedes albopictus蚊子咬重复对肠道微生物群组成和稳定性的影响.
- 为了评估这些效应在硫酸 (DSS) 诱导的大肠炎的小鼠模型中.
主要方法:
- 在进行DSS治疗之前,小鼠曾经被蚊子咬过.
- 在基线,炎症期间 (第7天) 和恢复期间 (第14天) 使用16SrRNA测序分析了便微生物群.
- 测量了宿主炎症标志物和血液学参数.
主要成果:
- 蚊子咬增加了微生物的丰富性和社区分散在基线.
- 暴露于蚊子的小鼠在DSS挑战期间表现出明显的微生物轨迹和改变的种群丰度 (例如,乳酸菌).
- 微生物群的转变与改变的宿主炎症读数 (例如IL-6) 和温和的血液学变化相关.
结论:
- 重复的载体暴露会重塑肠道微生物群,影响其在炎症压力下的稳定性和组成.
- 载体-宿主相互作用可能是影响宿主-微生物伙伴关系的一个被低估的因素.
- 肠道微生物群落对诸如载体咬伤等生态干扰非常敏感.
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