儿科长期COVID的特征是髓质CCR6抑制和免疫失调
Jon Izquierdo-Pujol1, Núria Pedreño-Lopez1, Tetyana Pidkova1
1IrsiCaixa, Badalona, Spain.
JCI insight
|February 19, 2026
概括
儿童的长期COVID涉及免疫系统失调,包括改变的先天免疫力和过度活跃的T,B和NK细胞. 这种免疫失衡会影响抗体反应和对SARS-CoV-2的中和能力.
科学领域:
- 免疫学 免疫学 免疫学
- 儿科 儿科 儿科
- 传染性疾病 传染性疾病
背景情况:
- 长期COVID病原发生在儿科患者中仍然在很大程度上是未知的.
- 了解免疫系统的作用对于诊断和治疗儿科长期COVID至关重要.
研究的目的:
- 在儿童和年轻人 (CYP) 中调查长期COVID的免疫病理生理学.
- 为了识别免疫生物标志物,将儿科长期COVID与对照区分开来.
主要方法:
- 对外围血液单核细胞 (PBMC) 和 SARS-CoV-2 抗体对长期COVID和没有CYP的反应进行分析.
- 利用随机森林分析来识别预测生物标志物.
主要成果:
- 儿科长期COVID与失调的天生的免疫力和过度活跃的T,B和NK细胞反应有关.
- 长期COVID的CYP表现出受损的幽默免疫力,B细胞失调和较低的抗RBDIgG/IgA水平,与减少的病毒中和相关.
- 在CYP中,骨髓状细胞上的CCR6表达被确定为长期COVID的关键生物标志物,准确度为79%.
结论:
- 儿科长期COVID的特点是明显的免疫失调.
- 免疫分析和生物标志物识别对于理解和管理儿童长期COVID至关重要.
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