预先存在的Th1免疫力在预测对SARS-CoV-2无活化疫苗的抗体反应方面优于年龄
Chanyuan Ye1, Xiaoli Zhang1, Lingfeng Qiu1
1State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310024, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|November 17, 2025
概括
老年人对COVID-19疫苗的免疫反应通过Th1 CD4+ T细胞得到改善. 基线Th1细胞,而不是年龄,在非活化SARS-CoV-2疫苗接种后更好地预测抗体生成.
科学领域:
- 免疫学 免疫学 免疫学
- 疫苗学 疫苗学 疫苗学
- 老年学是一门学科.
背景情况:
- 老年人面临更高的COVID-19风险,需要优化疫苗反应.
- 年龄相关的免疫变化会影响疫苗的有效性,特别是在老年人群中.
研究的目的:
- 调查影响SARS-CoV-2无活化疫苗反应的与年龄相关的免疫变化.
- 确定可靠的生物标志物,以预测不同年龄组的疫苗诱导抗体生成.
主要方法:
- 在疫苗接种后对年轻老年小鼠免疫反应的比较分析.
- 对T细胞种群的转录基因分析.
- 人类队列研究将基线免疫细胞水平与疫苗接种后抗体标位相关联.
主要成果:
- 年龄较大的小鼠表现出极化旁观者Th1 CD4+ T细胞数量增加,增强幽默免疫力.
- 接种疫苗后的抗体标位在人类各个年龄组中都相似.
- 基线Th1细胞升高,而不是年龄,与较高的抗体标位正相关,作为优越的预测生物标志物.
结论:
- 基线Th1细胞是对无活化SARS-CoV-2疫苗的抗体反应的更有效预测因素,而不是时间表.
- 研究结果揭示了Th1细胞介导的疫苗免疫性机制.
- 洞察力可以为下一代疫苗的开发提供信息,在不同人群中提高有效性.
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