扭矩病毒病毒载量预测了移植接受者对SARS-CoV-2疫苗的反应
Morgane Solis1,2, Ilies Benotmane1,2,3, Floriane Gallais1,2
1Laboratoire de Virologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.
Journal of medical virology
|July 5, 2023
概括
高扭矩病毒 (TTV) 病毒载荷预测了移植接受者 (KTR) 的SARS-CoV-2 mRNA疫苗反应不佳. 这一发现表明,TTV病毒载量可以指导免疫功能低下个体的疫苗接种策略.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 移植 移植 移植 移植
背景情况:
- 移植接收者往往对SARS-CoV-2 mRNA疫苗的免疫反应减弱.
- 扭矩病毒 (TTV) 病毒载量是全球免疫状况的公认指标.
研究的目的:
- 评估Torque teno病毒 (TTV) 病毒载量作为移植接受者 (KTR) 中SARS-CoV-2mRNA疫苗反应的预测指标.
主要方法:
- 对459名接受了两剂SARS-CoV-2mRNA疫苗的KTR进行了回顾性分析,其中241人接受了第三剂.
- 在疫苗接种前样本中测量TTV病毒载量,并在每剂量后评估抗RBDIgG反应.
主要成果:
- 疫苗接种前的TTV病毒载量>6.2 log10副本/毫升独立预测了两剂 (OR=6.17) 和三剂 (OR=3.62) 的非反应.
- 在接种疫苗之前或在第三剂之前增加的TTV病毒载量与非响应者中较低的血清转化率和抗体标位相关.
结论:
- 在SARS-CoV-2疫苗接种前和接种期间,高TTV病毒载量与KTR的疫苗反应不佳有关.
- TTV病毒载量可以作为一个有价值的生物标志物,用于预测移植群体的疫苗疗效,并为其他疫苗类型进行进一步的研究.
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