系统性免疫特征的广泛变化与肺功能异质性和囊性纤维化中的呼吸道微生物有关
Elio Rossi1, Mads Lausen2, Nina Friesgaard Øbro3
1Department of Clinical Microbiology, Rigshospitalet, Copenhagen Ø, Denmark; Department of Biosciences, University of Milan, Milan, Italy.
概括
囊性纤维化 (CF) 患者表现出一种独特的免疫特征,具有过度激活和改变的免疫细胞,与肺功能和肺微生物组有关. 这种免疫失调可能解释了疾病的异质性,并为新的CF治疗提供了点.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
- 肺部病理学 肺部病理学
背景情况:
- 囊性纤维化 (CF) 具有炎症和感染的特征,临床结果各异.
- 肺结核对整体免疫反应的影响,它与肺微生物组的联系,以及临床异质性的原因仍然不清楚.
研究的目的:
- 为了研究患有CF (pwCF) 的人的全身免疫特征.
- 探索免疫细胞子集,肺中的微生物组成和pwCF.的临床结果之间的关系.
主要方法:
- 收集了28个pwCF和对照组的血液和唾液.
- 使用流细胞计量量化免疫细胞子集和标记物.
- 通过metatranscriptomics分析了肺微生物组,并与免疫数据相关联.
主要成果:
- pwCF表现出明显的免疫特征,具有过度活化的细胞,改变的B细胞子集和增加的CD35+/CD49d+中性粒细胞.
- 免疫标志物表达与健康个体不同,Tregs中CTLA-4增加与肺功能相关.
- 免疫细胞形状与丰富的肺部细菌相关,无论是开始性还是致病性.
结论:
- CF特异性免疫特征,包括Treg失调和B细胞功能受损,可能导致肺功能异质.
- 肺部微生物活动会破坏免疫反应平衡.
- 这些发现为新的CF治疗生物标志物和免疫调节策略提供了基础.
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