慢性淋巴细胞白血病患者对SARS-CoV-2的混合免疫力
Sibylle C Mellinghoff1,2,3, Sandra Robrecht1, Rosanne Sprute1,2
1Faculty of Medicine and University Hospital Cologne, Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf (CIO ABCD) and Excellence Center for Medical Mycology (ECMM), University of Cologne, Cologne, Germany.
European journal of haematology
|February 4, 2024
概括
混合免疫力,从COVID-19疫苗接种和感染,显著提高慢性淋巴细胞白血病 (CLL) 患者的免疫反应. 这包括增强的抗体和T细胞活性,即使使用B细胞消耗治疗.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
背景情况:
- 预防严重的COVID-19非常重要,尤其是对于免疫力低下的人来说.
- 混合免疫力 (感染+接种疫苗) 在健康人群中提供了对SARS-CoV-2的强大保护.
研究的目的:
- 研究混合免疫对慢性淋巴细胞白血病 (CLL) 患者免疫反应的影响.
主要方法:
- 这是一项涉及六名CLL患者的观察性研究.
- 第四次COVID-19疫苗接种后55天收集的血液样本.
- 评估了SARS-CoV-2尖端受体结合域 (RBD) 特定的IgG抗体和T细胞活性.
主要成果:
- 100%的CLL患者在第四剂疫苗接种后显示出可检测的IgG抗体,比第三剂增加了66.7%).
- 平均166个斑点形成细胞 (SFC) /百万个PBMC表明T细胞活动后混合免疫.
- 100%的患者表现出T细胞活性增加.
结论:
- 第四次COVID-19疫苗接种与SARS-CoV-2感染相结合,增强了CLL患者的细胞和幽默免疫力.
- 即使是以前接种疫苗失败的患者也表现出特定的IgG反应.
- 需要进一步研究混合免疫在CLL的持续时间和有效性,考虑各种因素.
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