NVX-CoV2373诱导幽默和细胞免疫反应,其功能与基于载体和mRNA的疫苗相似
Franz Mai1, Marcel Kordt2, Wendy Bergmann-Ewert2
1Institute of Immunology, Rostock University Medical Center, Rostock, Germany.
Frontiers in immunology
|April 2, 2024
概括
基于蛋白质的NVX-CoV2373疫苗显示与mRNA和载体疫苗相似的中和,观察到独特的T细胞反应. 需要进一步的研究来确定对SARS-CoV-2感染的真实世界保护.
科学领域:
- 免疫学 免疫学 免疫学
- 疫苗学 疫苗学 疫苗学
- 传染性疾病 传染性疾病
背景情况:
- 目前有三种不同的SARS-CoV-2疫苗可供使用:NVX-CoV2373 (基于蛋白质),AZD1222 (载体) 和BNT162b2 (mRNA).
- 对免疫反应的比较分析对于了解疫苗疗效至关重要.
研究的目的:
- 为了比较NVX-CoV2373的免疫性与先前使用的AZD1222和BNT162b2疫苗.
- 在疫苗接种后的早期和晚期分析抗体数量,中和能力,质量和T细胞反应.
主要方法:
- 招募了接种NVX-CoV2373,AZD1222或BNT162b2疫苗的参与者,包括一组未接种疫苗的对照组.
- 量化疫苗特异性抗体,中和能力和21天和6个月的同型.
- 通过ELISpot和在体外再刺激后的流细胞测量来评估细胞免疫力.
主要成果:
- mRNA疫苗 (BNT162b2) 显示出优异的抗体水平和结合效率.
- 在所有三种疫苗类型中,对野生型和Omicron BA.1变种的中和能力是可比的.
- 对于NVX-CoV2373,观察到一个独特的CD8 T细胞响应在三周后演变为六个月后的CD4记忆,而不是其他疫苗.
结论:
- NVX-CoV2373引起与mRNA和载体疫苗相似的中和,具有不同的T细胞动力学.
- 需要进一步的研究来将这些免疫反应与对SARS-CoV-2感染和长期COVID的现实保护相关联.
关键词:
AZD122222 这是一个很好的选择.BNT162b2b2 在线阅读在NVX-CoV237373中.这就是SARS-CoV-2病毒.这就是T细胞.抗体是一种抗体.同源和异源的疫苗接种.疫苗 疫苗 疫苗 疫苗更多相关视频
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