在血造干细胞移植接收者中,SARS-CoV-2疫苗诱导的免疫反应
Afoke Kokogho1,2, Trevor A Crowell3,4, Muneerah Aleissa1,5,2
1Division of Infectious Diseases, Brigham and Women's Hospital, Boston, Massachusetts, USA.
Open forum infectious diseases
|July 31, 2023
概括
血造干细胞移植接受者在接种疫苗后表现出强烈的SARS-CoV-2抗体反应. 更多的疫苗剂量与更高的抗体标位相关,这表明监测可能会发现免疫反应减弱.
科学领域:
- 免疫学 免疫学 免疫学
- 血液学 血液学 血液学
- 疫苗学 疫苗学 疫苗学
背景情况:
- 血造干细胞移植 (HSCT) 患者可能对严重急性呼吸系统综合征冠状病毒2 (SARS-CoV-2) 疫苗有不同的免疫反应.
- 了解这些反应对于管理2019年冠状病毒病 (COVID-19) 在这个脆弱人群中的风险至关重要.
研究的目的:
- 为了评估HSCT接种者对SARS-CoV-2疫苗接种的幽默免疫反应.
- 在这个队列中确定影响抗尖峰 (S) 免疫球蛋白G (IgG) 抗体标位的因素.
主要方法:
- 在2020-2022年期间接种疫苗的152名HSCT接种者的回顾性图表审查.
- 使用罗氏试验测量抗S IgG抗体标位.
- 分析人口和治疗变量,包括疫苗剂量和抗CD20疗法,使用多变量回归.
主要成果:
- 观察到高响应率 (92.8%),中位数抗S IgG标位为2500 U/mL.
- 增加的疫苗剂量,女性性别,年龄较小 (<65岁),缺乏抗CD20疗法与更高的抗体标位有关.
- 男性性别和抗CD20疗法与非反应有关.
结论:
- 大多数HSCT接种者在接种疫苗后获得了强大的SARS-CoV-2抗体反应.
- 免疫反应的程度受到疫苗剂量和特定疗法等因素的影响.
- 监测抗S IgG水平可以帮助识别HSCT患者的减弱疫苗诱导反应.
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