在支气管喘中识别昼间节律性血标记物
Karolina Krakowiak1, Robert J Maidstone1,2,3, Amlan Chakraborty1
1Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.
ERJ open research
|July 5, 2023
概括
喘改变了血液细胞中的身体内部时钟,增加了节律性. 这项研究揭示了免疫细胞反应和血清胺的变化,影响了喘的全身效应.
科学领域:
- 时间生物学 时间生物学
- 免疫学 免疫学 免疫学
- 系统性炎症 系统性炎症
背景情况:
- 喘是一种循环节调节的炎症性呼吸道疾病.
- 喘中的系统性炎症反映在循环的免疫细胞中.
- 在喘中,外周血液的白天节律性仍未得到充分研究.
研究的目的:
- 为了研究喘对周围血液日间节律的影响.
- 在喘患者的血细胞分子钟的改变的特征.
- 探索免疫细胞功能的日间变化和喘中的血清胺样本.
主要方法:
- 招募了10名健康和10名轻度/中度喘患者.
- 在24小时内,每6小时收集一次血液样本.
- 分析了分子钟基因表达,免疫细胞计数,免疫细胞对刺激和类固醇抑制的反应,以及血清胺水平.
主要成果:
- 与对照组相比,喘患者的分子钟基因PER3的节律性明显更高.
- 在健康人群和喘患者中,血液免疫细胞数量每天都在波动.
- 喘患者在16:00时表现出增强的外周血液单核细胞对免疫刺激和葡萄糖皮质体抑制的反应,相比于04:00时.
- 血清胺表现出复杂的日间变化,其中一些失去了,而另一些则在喘中获得了节律性.
结论:
- 喘与外周血液分子钟的节律性增加有关.
- 血清胺的动态变化表明系统性炎症参与喘.
- 16:00时对葡萄糖皮质激素增强的免疫细胞反应可能表明喘时类固醇治疗的最佳时间.
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