在长期COVID-19中,自主功能障碍和血管调节与抗GPCR自身抗体有关
Boris Schmitz1, René Garbsch1, Hendrik Schäfer1
1Department of Rehabilitation Sciences, Faculty of Health, University of Witten/Herdecke, Witten, Germany; DRV Clinic Königsfeld, Center for Medical Rehabilitation, Ennepetal, Germany.
The Journal of allergy and clinical immunology
|November 22, 2025
概括
针对G蛋白结合受体的自身抗体与COVID-19后综合征 (PCS) 中的自主功能障碍有关. 这些自身抗体调节心律和血管功能,但不改变B细胞和T细胞受体谱.
科学领域:
- 免疫学 免疫学 免疫学
- 心脏病学 心脏病学
- 神经学 神经学
背景情况:
- 针对G蛋白结合受体的自身抗体 (AAB) 与2019年新冠肺炎疾病 (PCS) 的后急性后果有关.
- 影响节律控制和血管调节的自主功能障碍是PCS的一个关键特征.
研究的目的:
- 在PCS患者中描述与自主功能障碍相关的AAB.
- 描述外围B细胞和T细胞受体 (BCR/TCR) 架构,以确定自身免疫的免疫遗传标记.
主要方法:
- 在PCS患者中具有自主功能障碍 (心率变化) 的特征性抗G蛋白结合受体AAB.
- 用于BCR/TCR分析的适应性免疫受体谱系测序.
- 分析了AABs的心脏和血管活性作用及其对心肌细胞功能的影响.
主要成果:
- 特定的AABs (例如,抗angiotensin II受体,抗腺素受体,抗肌酸性乙胆受体,CXCR3ab) 与心率变化变化相关.
- 较高的CXCR3ab水平与较高的平均动脉压相关,并与M1 AAB结合,在压力期间增加血压.
- 在BCR的指标 (克隆性,多样性,体变异) 中,PCS患者和对照人群之间没有显著差异.
结论:
- 在PCS中,AABs在同情神经系统调节心律和血管功能的调节作用.
- AAB水平与BCR/TCR谱系指标或T细胞受体β变量基因使用不相关,这表明有不同的免疫遗传基础.
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