在B细胞枯竭的患者中,SARS-CoV-2 mRNA疫苗接种诱导了与血干扰素-马相关的抗原特异性T细胞反应
Tyler L Borko1, Ryan Baxter2, Berenice Cabrera-Martinez2
1Department of Neurology, University of Colorado Anschutz School of Medicine, United States of America.
Journal of neuroimmunology
|September 4, 2023
概括
没有对严重急性呼吸系统综合征冠状病毒-2 (SARS-CoV-2) 疫苗的抗体反应的患者仍然可能产生T细胞反应. 干扰素释放试验 (IGRA) 可以有效地评估B细胞枯竭个体的T细胞反应.
科学领域:
- 免疫学 免疫学 免疫学
- 疫苗学 疫苗学 疫苗学
- 临床检测 临床检测
背景情况:
- 很大一部分患者,特别是那些接受抗CD20治疗的患者,在接受严重急性呼吸系统综合征冠状病毒-2 (SARS-CoV-2) 疫苗接种后可能不会产生抗体反应.
- 评估T细胞对SARS-CoV-2疫苗的反应是具有挑战性的,因为缺乏规范的,临床上可行的测定和流细胞计的复杂性.
研究的目的:
- 评估一项临床可行的试验,用于测量T细胞对SARS-CoV-2mRNA疫苗接种的反应.
- 为了比较基于流细胞计的T细胞激活试验与与酶相关的免疫吸收试验 (ELISA) 来评估T细胞反应.
主要方法:
- 通过ELISA比较流细胞计 (测量激活诱导标记 [AIM] 和细胞内干扰素马 [INFγ]) 与血干扰素马释放试验 (IGRA).
- 评估了24名接受抗CD20疗法和SARS-CoV-2mRNA疫苗接种的参与者.
主要成果:
- 通过IGRA测量的血INFγ产生与INFγ产生AIM阳性T细胞的百分比存在相关性.
- 这表明IGRA可以作为T细胞反应的可靠指标.
结论:
- 干扰素释测试 (IGRA) 是一种强大,临床可行,时间效率高,成本效益高的方法,用于评估B细胞枯竭患者对SARS-CoV-2疫苗的T细胞反应.
- 这种测试为监测不产生抗体反应的个体的疫苗疗效提供了有价值的工具.
相关概念视频
Vaccinations
44.7K
Overview
44.7K
Immune Response Against Viral Pathogens
824
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
824


