描述SARS-CoV-2核体 (N) 蛋白抗体反应的特征
C C A Noble1, E McDonald2, S Nicholson3
1Department of Paediatrics, The University of Melbourne, Parkville, Victoria, Australia; Infectious Diseases Group, Murdoch Children's Research Institute, Parkville, Victoria, Australia.
The Journal of infection
|February 8, 2025
概括
抗体对SARS-CoV-2核体 (N) 蛋白的反应在COVID-19感染或CoronaVac疫苗接种后显著变化,但是持久的. 之前的COVID-19疫苗接种减少了感染后的N抗体反应.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 疫苗学 疫苗学 疫苗学
背景情况:
- SARS-CoV-2 核体 (N) 蛋白抗体表明先前感染,并且可以通过像 CoronaVac.这样的无活化疫苗来诱导.
- 了解抗N抗体动态对于评估感染和疫苗接种的血清反应至关重要.
研究的目的:
- 为了表征COVID-19感染后的抗N抗体反应.
- 在接种CoronaVac疫苗后,对抗N抗体反应的特征.
- 为了比较COVID-19感染和CoronaVac疫苗接种之间的抗N反应.
主要方法:
- 使用了一个国际随机对照试验队列.
- 随着时间的推移,在COVID-19感染后的成年人中追踪了抗体反应.
- 在CoronaVac疫苗接种后的成年人中,随着时间的推移跟踪了抗体反应.
主要成果:
- 在COVID-19之后,抗N血清转化率很高 (96.9%不完整,88.2%完成先前接种疫苗),因症状严重程度,年龄,接种疫苗状态,并发症和位置而受到影响的变量指数.
- 大多数参与者在12个月后仍然对抗N抗体呈阳性.
- 在接种CoronaVac疫苗后,抗N血清转化率为63.5%,抗体指数可变.
结论:
- 对COVID-19和CoronaVac的Anti-N抗体反应非常可变,但表现出持久性.
- 预先完成基于COVID-19尖端的疫苗接种课程,在随后的COVID-19感染后减少了抗N血清转化和抗体指数.
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