功能性CFTR可能需要用于Prevotella melaninogenica对表皮细胞防御对金黄色葡萄球菌的调节
Maksym Goryachok1, Ana Fairbanks-Mahnke1, Sam Fulte1
1University of Colorado School of Medicine, Department of Otolaryngology - Head & Neck Surgery, Aurora, CO, USA.
概括
在囊性纤维化 (CF) 模型中,Prevotella melaninogenica增强了对黄金葡萄球菌肺部感染的防御能力. 然而,随着CFTR功能障碍,这些好处就会消失,尽管CFTR调节器可以恢复它们.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 肺部医学 肺部医学
背景情况:
- 在囊性纤维化 (CF) 肺部中,Prevotella melaninogenica很普遍,但其在呼吸系统健康中的作用尚不清楚.
- 以前的研究表明,Prevotella调节免疫反应,但对CF感染的相关性尚不清楚.
研究的目的:
- 在CF模型中调查P. melaninogenica对金黄色葡萄球菌感染的影响.
- 确定囊性纤维化外膜导电调节器 (CFTR) 在P. melaninogenica介导的主体防御中的作用.
主要方法:
- 使用小鼠肺部感染模型来评估P. melaninogenica对S. aureus的影响.
- 测量了S. aureus对CFTR突变和野生类型上皮细胞的粘附性.
- 进行了上皮细胞因子分泌和RNA测序.
主要成果:
- P. melaninogenica减少了黄金色杆菌肺部感染,增强了中性粒细胞的杀死,并降低了细菌的粘附性.
- 这些效应是TLR2依赖的,并且需要功能性CFTR来进行上皮粘附.
- CFTR调节器恢复了P. melaninogenica对上皮细胞的有益作用.
结论:
- P. melaninogenica增强了对S. aureus的中性粒细胞和上皮细胞的防御能力.
- CFTR功能障碍会抵消上皮的益处,但CFTR调节器可以恢复它们.
- 协同宿主微生物组和CFTR向疗法显示出CF治疗的潜力.
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