Reduced neutralization of SARS-CoV-2 B.1.617 by vaccine and convalescent serum.
Animals
Antibodies, Monoclonal
/ immunology
Antibodies, Neutralizing
/ immunology
Antibodies, Viral
/ immunology
Antigen-Antibody Complex
/ chemistry
COVID-19
/ pathology
COVID-19 Vaccines
/ administration & dosage
Chlorocebus aethiops
Crystallography, X-Ray
Humans
Immunization, Passive
Neutralization Tests
Protein Domains
/ immunology
SARS-CoV-2
/ genetics
Spike Glycoprotein, Coronavirus
/ chemistry
Vero Cells
COVID-19 Serotherapy
B.1.617
Delta variant
Receptor-binding-domain
SARS-CoV-2
antibody
escape
neutralization
structure
vaccine
variant
Journal
Cell
ISSN: 1097-4172
Titre abrégé: Cell
Pays: United States
ID NLM: 0413066
Informations de publication
Date de publication:
05 08 2021
05 08 2021
Historique:
received:
25
05
2021
revised:
04
06
2021
accepted:
11
06
2021
pubmed:
10
7
2021
medline:
20
8
2021
entrez:
9
7
2021
Statut:
ppublish
Résumé
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has undergone progressive change, with variants conferring advantage rapidly becoming dominant lineages, e.g., B.1.617. With apparent increased transmissibility, variant B.1.617.2 has contributed to the current wave of infection ravaging the Indian subcontinent and has been designated a variant of concern in the United Kingdom. Here we study the ability of monoclonal antibodies and convalescent and vaccine sera to neutralize B.1.617.1 and B.1.617.2, complement this with structural analyses of Fab/receptor binding domain (RBD) complexes, and map the antigenic space of current variants. Neutralization of both viruses is reduced compared with ancestral Wuhan-related strains, but there is no evidence of widespread antibody escape as seen with B.1.351. However, B.1.351 and P.1 sera showed markedly more reduction in neutralization of B.1.617.2, suggesting that individuals infected previously by these variants may be more susceptible to reinfection by B.1.617.2. This observation provides important new insights for immunization policy with future variant vaccines in non-immune populations.
Identifiants
pubmed: 34242578
pii: S0092-8674(21)00755-8
doi: 10.1016/j.cell.2021.06.020
pmc: PMC8218332
pii:
doi:
Substances chimiques
Antibodies, Monoclonal
0
Antibodies, Neutralizing
0
Antibodies, Viral
0
Antigen-Antibody Complex
0
COVID-19 Vaccines
0
Spike Glycoprotein, Coronavirus
0
spike protein, SARS-CoV-2
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
4220-4236.e13Subventions
Organisme : Wellcome Trust
ID : 203224/Z/16/Z
Pays : United Kingdom
Organisme : Medical Research Council
ID : MR/V028448/1
Pays : United Kingdom
Organisme : Medical Research Council
ID : MC_UU_00008/11
Pays : United Kingdom
Organisme : Bill & Melinda Gates Foundation
ID : INV-016202
Pays : United States
Organisme : Medical Research Council
ID : MR/N00065X/1
Pays : United Kingdom
Organisme : Medical Research Council
ID : MR/V001329/1
Pays : United Kingdom
Organisme : Medical Research Council
ID : MC_PC_19060
Pays : United Kingdom
Organisme : Medical Research Council
ID : MC_PC_20016
Pays : United Kingdom
Organisme : Wellcome Trust
ID : 109965/Z/15/Z
Pays : United Kingdom
Organisme : Medical Research Council
ID : MR/L018942/1
Pays : United Kingdom
Organisme : Medical Research Council
ID : G0600520
Pays : United Kingdom
Organisme : Medical Research Council
ID : G1001046
Pays : United Kingdom
Organisme : Wellcome Trust
Pays : United Kingdom
Organisme : Medical Research Council
ID : MC_PC_19055
Pays : United Kingdom
Informations de copyright
Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests G.R.S. is on the GSK Vaccines Scientific Advisory Board. Oxford University holds intellectual property related to the Oxford-AstraZeneca vaccine. A.J.P. is Chair of UK Department Health and Social Care’s (DHSC) Joint Committee on Vaccination & Immunisation (JCVI) but does not participate in the JCVI COVID19 committee and is a member of the WHO’s SAGE. The views expressed in this article do not necessarily represent the views of DHSC, JCVI, or WHO. The University of Oxford has entered into a partnership with AstraZeneca on coronavirus vaccine development. The University of Oxford has protected intellectual property disclosed in this publication. S.C.G. is co-founder of Vaccitech (collaborators in the early development of this vaccine candidate) and is named as an inventor on a patent covering use of ChAdOx1-vectored vaccines and a patent application covering this SARS-CoV-2 vaccine (PCT/GB2012/000467). T.L. is named as an inventor on a patent application covering this SARS-CoV-2 vaccine and was a consultant to Vaccitech for an unrelated project during the conduct of the study.
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