不同的中和和补充固定的抗体反应可以诱导相同的抗原在血液透析患者免疫接种后与不同的疫苗平台
Nadezhda Wall1,2, Rachel Lamerton3, Fiona Ashford3
1Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK.
Vaccines
|January 24, 2025
概括
血液透析 (HD) 患者在接种疫苗后对新型抗原表现出强大的抗体反应. mRNA疫苗和增强增强了这个脆弱人群的功能性免疫力,改善了疫苗接种的成功.
科学领域:
- 免疫学 免疫学 免疫学
- 腎臟病學 (nephrology) 是一種醫學專業.
- 疫苗学 疫苗学 疫苗学
背景情况:
- 慢性病 (CKD) 和血液透析 (HD) 与免疫功能障碍和感染风险增加有关.
- 疫苗诱导的免疫力在HD患者中经常减弱.
- 随着SARS-CoV-2大流行,可以研究使用病毒载体 (VV) 和mRNA (mRV) 疫苗对HD患者的Spike (S) 糖蛋白的抗体反应.
研究的目的:
- 为了比较HD患者与健康对照者的SARS-CoV-2 Spike (S) 糖蛋白抗体反应.
- 评估不同平台 (VV和mRV) 接种疫苗后抗体反应的规模和功能.
- 评估序列免疫接种和增强对HD患者抗体功能的影响.
主要方法:
- 总和功能性抗S抗体反应的比较 (交叉变体中和,补体结合).
- 该研究包括187名HD患者和43名健康对照.
- 抗体评估是在连续免疫接种后21-28天进行的.
主要成果:
- 接种了两剂疫苗后,HD患者表现出与对照人群相比的抗S抗体水平和补充结合.
- 与病毒载体 (VV) 疫苗相比,两剂mRNA疫苗 (mRV) 诱导了优异的多功能抗体反应.
- 一种mRV助推剂显著改善了先前接种VV疫苗的HD患者的抗体功能,即使没有先前的SARS-CoV-2感染.
结论:
- 血液透析患者可以在连续接种疫苗后对新型抗原产生接近正常的功能性抗体反应.
- 使用mRNA疫苗和强剂可以增强免疫记忆,提高HD患者的疫苗接种效率.
- 这些发现支持针对易受感染的疾病流行群体优化疫苗接种策略.
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