中性细胞细胞外陷的产生和CCL4L2的表达影响了喘中的皮质类固醇反应
Ching-Hui Tsai1, Alan Chuan-Ying Lai1, Yu-Cheng Lin1
1Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan.
中性细胞外细胞陷 (NETs) 与喘中吸入性皮质类固醇 (ICS) 的反应不佳有关. 破坏NET或准CCL4L2可能为严重喘提供新的治疗方法.
科学领域:
- 免疫学 免疫学 免疫学
- 肺部病理学 肺部病理学
- 遗传学 是一个遗传学.
背景情况:
- 在喘中,中性粒细胞外细胞陷 (NETs) 和吸入性皮质类固醇 (ICS) 反应之间的关系仍然不太清楚.
- 中性粒细胞可能在失控的喘中发挥重要作用,影响治疗疗效.
研究的目的:
- 调查儿童喘中NETs和ICS反应之间的关联.
- 为了确定替代性喘治疗的分子标.
主要方法:
- 通过加权基因联合表达网络分析,对患有控制和不受控制的喘儿童的血液转录组进行分析.
- 使用中性友气道炎症的小鼠模型来评估类固醇和DNase I治疗的疗效.
- 在人类和小鼠肺组织中验证基因表达.
主要成果:
- 在喘患者中,NET丰度与ICS无反应相关.
- 在小鼠模型中,类固醇治疗未能抑制中性恋炎症和气道过敏反应.
- 脱氧核糖核酶I (DNase I) 有效地降低了气道过敏反应和炎症.
- CCL4L2表达与ICS无反应有关,并且与ICS治疗后肺功能改善负相关.
结论:
- 在某些喘表型中,类固醇对中性友气道炎症无效.
- 针对中性粒细胞关联途径的替代疗法,如DNase I或白血素受体抗剂,可能是有益的.
- CCL4L2代表了ICS阻燃性喘的潜在治疗标.
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