Department of Internal Medicine I, University Hospital Bonn, Bonn, Germany.
German Centre for Infection Research, Partner-site Cologne-Bonn, Bonn, Germany.
J Infect Dis. 2022 May 16;225(10):1688-1693. doi: 10.1093/infdis/jiac060.
We compared the ability of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike-specific antibodies to induce natural killer cell-mediated antibody-dependent cellular cytotoxicity (ADCC) in patients with natural infection and vaccinated persons. Analyzing plasma samples from 39 coronavirus disease 2019 (COVID-19) patients and 11 vaccinated individuals, significant induction of ADCC could be observed over a period of more than 3 months in both vaccinated and recovered individuals. Although plasma antibody concentrations were lower in recovered patients, we found antibodies elicited by natural infection induced a significantly stronger ADCC response compared to those induced by vaccination, which may affect protection conferred by vaccination.
我们比较了严重急性呼吸综合征冠状病毒 2(SARS-CoV-2)刺突特异性抗体在自然感染和接种人群中诱导自然杀伤细胞介导的抗体依赖性细胞细胞毒性(ADCC)的能力。分析了 39 例 2019 年冠状病毒病(COVID-19)患者和 11 名接种者的血浆样本,在接种和康复个体中均能观察到 ADCC 在超过 3 个月的时间内显著诱导。尽管康复患者的血浆抗体浓度较低,但我们发现,与接种疫苗诱导的抗体相比,自然感染诱导的抗体引起的 ADCC 反应要强得多,这可能会影响疫苗接种所提供的保护。