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在AR小鼠中呼吸道和肠道微生物群的变化及其与Th1/Th2/Treg的关系

Zhang Panpan¹, Huang Jinli¹, Li Qiuhong¹

¹Department of Pediatrics, Xijing Hospital, the Fourth Military Medical University, Xi'an, China.

Microbial pathogenesis

|August 28, 2024

概括

过敏性鼻炎 (AR) 与肠道微生物群变化有关,而不是呼吸系统变化. 肠道微生物的变化与免疫反应 (Th1/Th2/Treg) 相相关,这表明在AR病变发生过程中发挥了作用.

科学领域:

免疫学免疫学免疫学
微生物组研究微生物组研究
过敏性疾病过敏性疾病

背景情况:

过敏性鼻炎 (AR) 的确切原因尚不清楚.
儿童免疫系统的发展与微生态学有关.
很少有研究在AR中同时探索呼吸道和肠道微生物群.

研究的目的:

通过分析呼吸道和肠道微生态来研究AR的发病性.
为了将微生态变化与T助手1 (Th1),T助手2 (Th2) 和调节性T (Treg) 细胞水平相关联.
应用微生物组技术和相关性分析,以获得全面的理解.

主要方法:

已确定的卵蛋白 (OVA) 诱导的AR小鼠模型.
通过ELISA测量了血清OVA特异性免疫球蛋白E (sIgE),IL-4,干扰素- (IFN-γ) 和IL-10.
使用16S rRNA基因测序分析了鼻洗液 (NALF) 和便微生物群组成.

主要成果:

AR小鼠表现出增加的过敏症状和炎症细胞透到鼻子组织中.
在AR小鼠中观察到肠道微生物群多样性和组成的显著变化.
在AR小鼠中,特定的肠道细菌属 (例如,Roseburia,Ruminiclostridium) 的数量下降.
在肠道微生物群和免疫标志物 (如OVA-sIgE,IL-4和Treg水平) 之间发现了相关性.

结论:

在AR小鼠中,呼吸道微生物群的组成没有显著变化.
在AR小鼠中,肠道微生物群的组成有显著的变化.
在AR中,肠道微生物群和Th1/Th2/Treg免疫反应之间存在相关性.

关键词:

16S rRNA 测序的测序方法过敏性鼻炎是一种过敏性鼻炎.我们的肠道微生物群.我们的老鼠是老鼠.呼吸系统的微生物群这是一个很好的方法. Th1 Th1 Th1 Th2 Th2 的意思是什么?这就是Treg Treg.

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