Cross-species tropism and antigenic landscapes of circulating SARS-CoV-2 variants.

Cross-species tropism and antigenic landscapes of circulating SARS-CoV-2 variants.
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流行的 SARS-CoV-2 变种的跨物种趋向性和抗原特征

DOI:
10.1016/j.celrep.2022.110558
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发表时间:
2022-03-22
期刊:
影响因子:
8.8
通讯作者:
Xia N
Xia N
中科院分区:
生物学1区
文献类型:
--
作者:
Zhang Y;Wei M;Wu Y;Wang J;Hong Y;Huang Y;Yuan L;Ma J;Wang K;Wang S;Shi Y;Wang Z;Guo H;Xiao J;Yang C;Ye J;Chen J;Liu Y;Fu B;Lan M;Gong P;Huang Z;Su Y;Chen Y;Zhang T;Zhang J;Zhu H;Yu H;Yuan Q;Cheng T;Guan Y;Xia N

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严重急性呼吸综合征冠状病毒2型(SARS-CoV-2)刺突受体结合域(RBD)的突变可能会改变病毒的宿主嗜性并影响中和抗体的活性。在这里,我们研究了153种RBD突变体和11种全球循环的关注变体(VOC)和感兴趣的变体(VOI)(包括Omicron),以了解它们在表达18种ACE 2直系同源物的细胞中的抗原变化和跨物种嗜性。几种RBD突变增强了表达非人动物ACE 2直系同源物的细胞中的病毒感染性,特别是那些对祖先菌株不太敏感的细胞。围绕氨基酸(aas)439-448和aa 484的突变更可能引起中和抗性。引人注目的是,小鼠和雪貂中跨物种感染潜力的增强,而不是突变的中和逃逸分数,与人类中突变的累积患病率呈正相关。这些发现为传播SARS-CoV-2变体的潜在驱动因素提供了见解,并为跟踪和预测传播突变提供了信息参数。Zhang等人显示了153个SARS-CoV-2 RBD突变体和11个全球循环VOC和VOI的体外跨物种感染性和中和逃逸特性。它们揭示了增强的跨物种感染潜力与当前突变累积流行率之间的关联,这可以为SARS-CoV-2尖峰突变的监测和预测提供信息。
Mutations in the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike receptor-binding domain (RBD) may alter viral host tropism and affect the activities of neutralizing antibodies. Here, we investigated 153 RBD mutants and 11 globally circulating variants of concern (VOCs) and variants of interest (VOIs) (including Omicron) for their antigenic changes and cross-species tropism in cells expressing 18 ACE2 orthologs. Several RBD mutations strengthened viral infectivity in cells expressing ACE2 orthologs of non-human animals, particularly those less susceptible to the ancestral strain. The mutations surrounding amino acids (aas) 439–448 and aa 484 are more likely to cause neutralization resistance. Strikingly, enhanced cross-species infection potential in the mouse and ferret, instead of the neutralization-escape scores of the mutations, account for the positive correlation with the cumulative prevalence of mutations in humans. These findings present insights for potential drivers of circulating SARS-CoV-2 variants and provide informative parameters for tracking and forecasting spreading mutations. Zhang et al. show in vitro cross-species infectivity and neutralization-escape characteristics of 153 SARS-CoV-2 RBD mutants and 11 globally circulating VOCs and VOIs. They reveal an association between enhanced cross-species infection potential and the current cumulative prevalence of mutations, which can inform surveillance and forecasting of SARS-CoV-2 spike mutations.
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