患有唐氏综合征的儿童中变化的外周血液白细胞亚群,功能和基因表达:对呼吸道感染的含义
Kelley L Colvin1, Kristine Wolter-Warmerdam2, Francis Hickey3
1Department of Bioengineering, University of Colorado Denver, Aurora, USA; Linda Crnic Institute for Down Syndrome, University of Colorado Denver, Aurora, USA.
European journal of medical genetics
|February 7, 2024
概括
患有唐氏综合征 (DS) 的儿童表现出改变的免疫细胞群和功能,与干扰素基因失调有关. 这可能解释了它们对感染的易感性增加.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 遗传学 是一个
- 儿科 儿科 儿科
背景情况:
- 唐氏综合征 (DS) 与免疫系统异常有关.
- 干扰素信号通路对于免疫反应至关重要.
- 染色体21上的异常基因表达可能会影响DS的免疫细胞功能.
研究的目的:
- 调查Hsa21编码的干扰素基因表达与DS儿童免疫细胞功能障碍之间的相关性.
- 为了确定特定的免疫细胞亚型及其功能性变化在儿童DS.
主要方法:
- 流细胞计用于量化外围血液白细胞亚型.
- 进行了免疫细胞迁移和吞细胞检测.
- 测量了干扰素信号通路组件的基因表达水平.
主要成果:
- 与对照人群相比,患有DS的儿童在外周血液髓质细胞亚型 (替代激活的巨细胞,低密度颗粒细胞) 中观察到显著差异.
- 患有DS的儿童表现出明显的细胞因子配置.
- 第三种类型干扰素受体 (Interleukin-10Rb) 的高表达与巨细胞迁移和细胞能力的降低相关.
结论:
- 免疫细胞的数量和亚型的变化,因三症21相关干扰症而变异的表型和功能,可能导致儿童患有DS的严重和慢性感染的易感性增加.
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