通过转录因子Helios在中风中定义的调节性T细胞子集的时间变化及其在中风相关感染中的潜在作用:一项前性病例对照研究
Maria Lukasik1, Magdalena Telec2, Radoslaw Kazmierski3
1Department of Neurology, Poznan University of Medical Sciences, Poznan, Poland. mlukasik@ump.edu.pl.
Journal of neuroinflammation
|November 23, 2023
概括
调节性T细胞 (Tregs) 表达Helios (H+ Tregs) 在缺血性中风后减少,有利于促炎细胞. 3日较高的H+Treg水平与中风相关感染 (SAI) 和严重程度相关,但没有长期的结果.
科学领域:
- 免疫学 免疫学 免疫学
- 神经学 神经学
- 脑卒中研究 脑卒中研究
背景情况:
- 调节性T细胞 (Tregs) 在缺血性中风中起着复杂的作用,具有潜在的神经保护和有害影响.
- Treg功能可能导致免疫抑制,并增加中风相关感染 (SAI) 的风险.
- 体表达 (H+ Tregs) 区分了具有不同抑制能力的Treg子集.
研究的目的:
- 在缺血性中风后调查循环的Helios表达调节性T细胞 (H+ Tregs) 和Helios负Tregs (H-Tregs) 的动态变化.
- 确定H+ Treg比例与中风相关感染 (SAI),神经严重程度和长期结果之间的相关性.
主要方法:
- 在52名缺血性中风患者中使用流细胞计对循环Treg群体的前性评估.
- 在多个时间点 (中风后的1,3,10天和90天) 中,对中风患者和匹配的对照组之间的Treg子集的比较.
- 统计分析以将H+ Treg百分比与SAI,NIHSS分数和心脏病发作量相关联.
主要成果:
- 与所有时间点的对照组相比,在中风患者中观察到H+ Tregs百分比的显著下降和H-Tregs相应的增加.
- 在中风后的第三天,在患有SAI的患者中发现H+ Tregs的比例更高.
- 第三天H+ Tregs的百分比与SAI独立相关,并在第90天与NIHSS得分和心脏病发作量呈正相关.
结论:
- 在缺血性中风后的早期,H+ Tregs的比例转向H-Tregs,到90日逐渐正常化.
- 在中风后的第三天升高的H+ Tregs是SAI的独立预测因子,并与中风严重程度的增加有关.
- 尽管与SAI和严重程度相关,但第3天的H+ Treg水平并不能独立预测长期中风结果或心脏病发作的大小.
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