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10.1016/j.cell.2021.03.029

http://scihub22266oqcxt.onion/10.1016/j.cell.2021.03.029
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suck abstract from ncbi


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pmid33773105      Cell 2021 ; 184 (9): 2316-2331.e15
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  • Neutralizing and protective human monoclonal antibodies recognizing the N-terminal domain of the SARS-CoV-2 spike protein #MMPMID33773105
  • Suryadevara N; Shrihari S; Gilchuk P; VanBlargan LA; Binshtein E; Zost SJ; Nargi RS; Sutton RE; Winkler ES; Chen EC; Fouch ME; Davidson E; Doranz BJ; Chen RE; Shi PY; Carnahan RH; Thackray LB; Diamond MS; Crowe JE Jr
  • Cell 2021[Apr]; 184 (9): 2316-2331.e15 PMID33773105show ga
  • Most human monoclonal antibodies (mAbs) neutralizing SARS-CoV-2 recognize the spike (S) protein receptor-binding domain and block virus interactions with the cellular receptor angiotensin-converting enzyme 2. We describe a panel of human mAbs binding to diverse epitopes on the N-terminal domain (NTD) of S protein from SARS-CoV-2 convalescent donors and found a minority of these possessed neutralizing activity. Two mAbs (COV2-2676 and COV2-2489) inhibited infection of authentic SARS-CoV-2 and recombinant VSV/SARS-CoV-2 viruses. We mapped their binding epitopes by alanine-scanning mutagenesis and selection of functional SARS-CoV-2 S neutralization escape variants. Mechanistic studies showed that these antibodies neutralize in part by inhibiting a post-attachment step in the infection cycle. COV2-2676 and COV2-2489 offered protection either as prophylaxis or therapy, and Fc effector functions were required for optimal protection. Thus, natural infection induces a subset of potent NTD-specific mAbs that leverage neutralizing and Fc-mediated activities to protect against SARS-CoV-2 infection using multiple functional attributes.
  • |Animals[MESH]
  • |Antibodies, Monoclonal/*pharmacology[MESH]
  • |Antibodies, Neutralizing/*pharmacology[MESH]
  • |Binding, Competitive[MESH]
  • |COVID-19/immunology/virology[MESH]
  • |Chemokines/metabolism[MESH]
  • |Chlorocebus aethiops[MESH]
  • |HEK293 Cells[MESH]
  • |Humans[MESH]
  • |Immunoglobulin Fab Fragments/metabolism[MESH]
  • |Immunoglobulin G/metabolism[MESH]
  • |Lung/metabolism[MESH]
  • |Mice[MESH]
  • |Mice, Inbred C57BL[MESH]
  • |Models, Molecular[MESH]
  • |Mutagenesis/genetics[MESH]
  • |Neutralization Tests[MESH]
  • |Protective Agents/*pharmacology[MESH]
  • |Protein Domains[MESH]
  • |Spike Glycoprotein, Coronavirus/*chemistry/*immunology[MESH]


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