组织居住的膜巨细胞通过MerTK介导的细胞酶减少O3诱导的炎症
M A Guttenberg1, A T Vose1, A Birukova1
1Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC.
bioRxiv : the preprint server for biology
|November 21, 2023
概括
组织居住的膜巨细胞通过清除中性粒细胞来解决臭氧诱导的肺炎. 削弱这些巨细胞或阻断MerTK会损害这一关键的细胞分裂过程,延长炎症.
科学领域:
- 环境健康 环境健康
- 免疫学 免疫学 免疫学
- 肺部医学 肺部医学
背景情况:
- 对标准空气污染物臭氧 (O3) 的急性暴露会导致肺炎.
- 膜巨细胞 (AMØs) 是肺中的关键免疫细胞,但它们在O3诱导的炎症中的作用尚不清楚.
研究的目的:
- 为了确定膜巨细胞 (AMØs) 在急性臭氧 (O3) 诱导的肺炎中的作用和起源.
- 研究AMØs解决O3诱导的肺炎的机制.
主要方法:
- 对急性O3暴露的小鼠模型.
- 血统追踪,遗传淘汰 (MerTK) 和AMØs. clodronate-liposome耗尽的遗传淘汰.
- 对暴露于O3的人类志愿者的分析.
主要成果:
- 暴露于臭氧的AMØs来自老鼠和人类的组织居民.
- 在O3暴露后,组织寄存的AMØs或MerTK淘汰损害的中性粒细胞清除 (细胞) 的耗尽.
- 降低了与长期肺炎相关的血细胞衰竭.
结论:
- 组织定居的AMØs对于解决O3诱导的肺炎至关重要.
- 通过AMØs进行的MerTK介导的细胞分解对于清除炎症残留物和解决炎症至关重要.
相关概念视频
01:20Chronic Obstructive Pulmonary Disease-II: Pathophysiology
2.8K
Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Inflammation
2.8K
01:26Alveoli and Alveolar Ducts
2.5K
The respiratory zone of the human body, which stands in contrast to the conducting zone, comprises the structures that actively participate in the exchange of gases. The initiation of this zone is marked by the terminal bronchioles converging into respiratory bronchioles, the tiniest bronchiole classification. The respiratory bronchioles give way to the alveolar ducts that opens into a congregation of alveoli. Actively involved in gas exchange, alveoli resemble tiny sacs similar to clusters of...
2.5K