A&R:B细胞重建与接受利妥昔单抗治疗的风湿病患者的 COVID-19疫苗反应性密切相关

2022-05-10 MedSci原创 MedSci原创

B细胞重建和自患者最后一次接触利妥昔单抗(RTX)以来的较长时间与对COVID-19疫苗的阳性血清学反应有关。在接受RTX治疗的患者中最大限度地提高疫苗反应性的策略应包括对B细胞重建的评估。

     目的:评估对COVID-19疫苗接种的可检测抗体反应与接受利妥昔单抗(RTX)治疗的患者的B细胞耗竭等因素之间的关联。

     方法:研究人员对接受RTX治疗并完成SARS-CoV-2信使RNA疫苗接种的成年患者病例进行了回顾性审查。主要结果测量是对疫苗接种的血清抗体反应的存在或不存在和强度。使用t检验、Fisher精确检验和Wilcoxon秩和检验计算有和没有可检测到的血清学反应的患者之间的比较。使用阴性预测值和阳性预测值评估对COVID-19疫苗接种的血清学反应与B细胞重建状态之间的关系,数据报告为具有95%置信区间(95% CI)的百分比。

     结果:在接受RTX治疗的56名患者中,血清学反应阳性的患者与接种疫苗的血清学反应阴性的患者相比,在B细胞重建水平方面观察到显著差异(B细胞在总淋巴细胞中的比例,中位数2% [四分位距(IQR) 0.1310%] 与中位数0% [IQR 00%]P<0.001)。血清学阳性患者与对疫苗接种血清学反应阴性的患者相比,自上次输注RTX以来的时间也存在显著差异(自上次输注后的中位时间为594 [IQR 2621,163] 与中位时间为138 [IQR 68197]P<0.001)。13%的患者(24 名中的3名)在最后一次接触RTX后超过 12个月,55%的患者(11 名中的6名)在最后一次接触后6-12个月和86% 的患者(21名中的18名)在最后一次接触后不到6个月时对COVID-19疫苗接种没有血清学反应。

     结论:B细胞重建和自患者最后一次接触RTX以来的较长时间与对COVID-19疫苗的阳性血清学反应有关。在接受RTX治疗的患者中最大限度地提高疫苗反应性的策略应包括对B细胞重建的评估。

 

出处:Jinich, S., Schultz, K., Jannat-Khah, D. and Spiera, R. (2022), B Cell Reconstitution Is Strongly Associated With COVID-19 Vaccine Responsiveness in Rheumatic Disease Patients Who Received Treatment With Rituximab. Arthritis Rheumatol, 74: 776-782. https://doi.org/10.1002/art.42034

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