补充产生的偶然性纤维细胞形成IL-33警报枢纽,在气道过敏期间维持ILC2s
Aishwarya Atakkatan1, Aishwarya Magesh1, Hwan Mee Yong2
1Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
进发性纤维细胞 (AFs) 产生补充C3,导致过敏呼吸道炎症. C3对于维持过敏性AF表型和促进2组先天性淋巴细胞 (ILC2) 反应至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 呼吸系统医学 呼吸系统医学
背景情况:
- 包括进发性纤维细胞 (AFs) 在内的介质细胞 stromal 细胞越来越多地被认为在调节呼吸道免疫力方面发挥着积极作用.
- 对过敏性气道炎症的AFs的具体贡献仍然不完全理解.
研究的目的:
- 为了确定气道中补充C3的来源.
- 阐明C3和AFs在过敏呼吸道炎症中的作用.
- 研究过敏反应中AFs和2组先天性淋巴细胞 (ILC2s) 之间的相互作用.
主要方法:
- 免疫组织化学用于识别空气道中的C3和IL-33表达细胞.
- 基因操纵以破坏AFs中的C3生产.
- 过敏呼吸道炎症的体内模型.
- 流细胞计测试以评估ILC2的反应.
主要成果:
- 冒险性纤维细胞 (AFs) 被确定为呼吸道冒险性C3补充的主要来源.
- 一组AFs共同表达C3和IL-33,在暴露于过敏原时扩展和增加产量,表明过敏表型.
- AFs的C3产生对于维持过敏性AF表型和驱动过敏原诱导的ILC2反应至关重要.
- 一个积极的反循环存在,其中来自ILC2s的IL-13促进AF功能,延续过敏炎症.
结论:
- 偶然性纤维细胞的异常C3产生策划了一个涉及AFs和ILC2s的病原性利基.
- 这种AF-ILC2位促进过敏呼吸道炎症.
- 针对AFs的C3生产可能代表过敏呼吸道疾病的治疗策略.
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