天生的和SARS-CoV-2特定的自适应性免疫反应动力学在中和单克隆抗体中成功治疗了COVID-19患者
Rita Casetti1, Alessandra Sacchi2, Valentina Mazzotta3
1Cellular Immunology and Pharmacology Laboratory, INMI L. Spallanzani, 00149 Rome, Italy.
International immunopharmacology
|January 20, 2025
概括
这项研究比较了COVID-19患者的两种抗Spike单克隆抗体 (mAbs) 治疗方法. 与Bamlanivimab/Etesevimab (BAM/ETE) 相比,Casirivimab/Imdevimab (CAS/IMD) 显示出更好的SARS-CoV-2特异性幽默和细胞免疫反应.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 药理学 药理学是指药理学的学科.
背景情况:
- 针对COVID-19的抗Spike单克隆抗体 (mAbs) 治疗的免疫影响尚不清楚.
- 缺乏对不同治疗方案的免疫反应进行比较的研究.
研究的目的:
- 在接受两种不同的mAb疗程的COVID-19患者中,比较先天性和适应性免疫反应的动力学.
- 为了评估SARS-CoV-2特定的幽默和T细胞响应,在用Bamlanivimab/Etesevimab (BAM/ETE) 与Casirivimab/Imdevimab (CAS/IMD) 治疗后.
主要方法:
- 招募了39名SARS-CoV-2感染的轻度/中度疾病患者,在基线,7天 (T7) 和30天 (T30) 输液后评估免疫参数.
- 利用流式细胞计,ELISA,化学发光测定和RT-PCR分析免疫细胞子集,细胞因子生产,抗体标位和病毒RNA.
- 将患者分为BAM/ETE (n=15) 和CAS/IMD (n=24) 的治疗组.
主要成果:
- 两种mAb疗法在恢复T和NK细胞平衡和减少炎症方面都表现出类似的效果.
- CAS/IMD组在T30时表现出抗核体IgG标位和SARS-CoV-2特异性T细胞反应的更快和更高的增加.
- 11名患者通过T7清除了SARS-CoV-2RNA,CAS/IMD组的比例更高 (81.8%).
结论:
- 无论是BAM/ETE和CAS/IMD治疗方法,都有效调节COVID-19患者的免疫反应.
- CAS/IMD疗法似乎促进了更强大和加快的SARS-CoV-2特异性幽默和细胞免疫.
- 与女性相比,男性患者表现出不同的免疫特征,包括高频率的激活T细胞和特定的T细胞反应.
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