在MS患者接受不同疾病修饰治疗后的SARS-CoV-2mRNA疫苗后,持续的纵向T细胞反应
Giulio Disanto1, Alice Galante2, Rosaria Sacco1
1Multiple Sclerosis Center, Neurocenter of Southern Switzerland, Ente Ospedaliero Cantonale, Lugano, Switzerland.
Multiple sclerosis and related disorders
|August 18, 2024
概括
mRNA疫苗在接受特里弗卢诺米德或奥克雷利祖马布治疗的多发性硬化症患者中产生强大的SARS-CoV-2T细胞免疫力. 然而,斯芬戈-1-酸盐受体调节剂显著损害了这些关键的疫苗反应.
科学领域:
- 免疫学 免疫学 免疫学
- 神经科学是一个神经科学.
- 疫苗学 疫苗学 疫苗学
背景情况:
- 多发性硬化症 (MS) 患者接受疾病修饰治疗 (DMT) 可能会改变疫苗反应.
- 关于SARS-CoV-2特定的T细胞动力学疫苗接种后和MS患者的强剂量数据有限.
- 了解这些反应对于优化MS疫苗接种策略至关重要.
研究的目的:
- 为了评估 SARS-CoV-2 特定的 CD4+ T 细胞反应随着时间的推移和在不同 DMT 治疗的多发性硬化症患者的强剂后.
- 为了比较多发性硬化症患者的T细胞反应,这些患者接受了teriflunomide,ocrelizumab或sphingosine-1-phosphate受体调节剂治疗.
- 评估mRNA SARS-CoV-2疫苗诱导的T细胞反应的耐用性和类型.
主要方法:
- 分析了来自36名多发性硬化症患者的72个样本.
- 用Spike重组蛋白刺激后测量SARS-CoV-2特定的CD4+T细胞反应.
- 流细胞计量量化CD4+ CTV 流CD25+ ICOS+ T细胞.
- 统计分析以比较不同DMT组的反应.
主要成果:
- 接受特里弗卢诺胺 (29.9%) 和奥克雷利祖马布 (32.4%) 的多发性硬化症患者表现出显著的SARS-CoV-2特异性CD4+T细胞反应.
- 接受斯芬戈-1-酸盐受体调节剂的MS患者表现出明显较低的反应 (0.6%).
- 针对SARS-CoV-2的特异性T细胞主要是Th1型,随着时间的推移而稳定,并在增强剂后持续存在.
结论:
- 在MS患者中,mRNA疫苗诱导了强烈和持久的SARS-CoV-2特异性CD4+T细胞反应,这些患者接受了teriflunomide或ocrelizumab的治疗.
- 氨酸-1-酸盐受体调节剂显著抑制疫苗诱导的SARS-CoV-2 T细胞免疫力.
- 这些发现突显了MS DMTs对疫苗疗效的影响差异,并为临床管理提供了信息.
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