Neutralising antibody escape of SARS-CoV-2 spike protein: Risk assessment for antibody-based Covid-19 therapeutics and vaccines

被引:123
作者
Focosi, Daniele [1 ]
Maggi, Fabrizio [2 ]
机构
[1] Pisa Univ Hosp, North Western Tuscany Blood Bank, I-56124 Pisa, Italy
[2] Univ Insubria, Dept Med & Surg, Varese, Italy
关键词
B.1.1.7; B.1.351; BNT162b2; bamlanivimab; casirivimab; convalescent plasma; COVID-19; etesevimab; imdevimab; immune escape; LyCoV016; LY-CoV555; mRNA-1273; mutations; neutralising antibody; REGN10987; REGN10933; P.1; P.2; polyclonal immunoglobulins; SARS-CoV-2; RECEPTOR-BINDING DOMAIN; MUTATIONS; REINFECTION; INFECTION;
D O I
10.1002/rmv.2231
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The Spike protein is the target of both antibody-based therapeutics (convalescent plasma, polyclonal serum, monoclonal antibodies) and vaccines. Mutations in Spike could affect efficacy of those treatments. Hence, monitoring of mutations is necessary to forecast and readapt the inventory of therapeutics. Different phylogenetic nomenclatures have been used for the currently circulating SARS-CoV-2 clades. The Spike protein has different hotspots of mutation and deletion, the most dangerous for immune escape being the ones within the receptor binding domain (RBD), such as K417N/T, N439K, L452R, Y453F, S477N, E484K, and N501Y. Convergent evolution has led to different combinations of mutations among different clades. In this review we focus on the main variants of concern, that is, the so-called UK (B.1.1.7), South African (B.1.351) and Brazilian (P.1) strains.
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页数:21
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