Potent cross-reactive antibodies following Omicron breakthrough in vaccinees

Copyright © 2022 The Author(s). Published by Elsevier Inc. All rights reserved..

Highly transmissible Omicron variants of SARS-CoV-2 currently dominate globally. Here, we compare neutralization of Omicron BA.1, BA.1.1, and BA.2. BA.2 RBD has slightly higher ACE2 affinity than BA.1 and slightly reduced neutralization by vaccine serum, possibly associated with its increased transmissibility. Neutralization differences between sub-lineages for mAbs (including therapeutics) mostly arise from variation in residues bordering the ACE2 binding site; however, more distant mutations S371F (BA.2) and R346K (BA.1.1) markedly reduce neutralization by therapeutic antibody Vir-S309. In-depth structure-and-function analyses of 27 potent RBD-binding mAbs isolated from vaccinated volunteers following breakthrough Omicron-BA.1 infection reveals that they are focused in two main clusters within the RBD, with potent right-shoulder antibodies showing increased prevalence. Selection and somatic maturation have optimized antibody potency in less-mutated epitopes and recovered potency in highly mutated epitopes. All 27 mAbs potently neutralize early pandemic strains, and many show broad reactivity with variants of concern.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:185

Enthalten in:

Cell - 185(2022), 12 vom: 09. Juni, Seite 2116-2131.e18

Sprache:

Englisch

Beteiligte Personen:

Nutalai, Rungtiwa [VerfasserIn]
Zhou, Daming [VerfasserIn]
Tuekprakhon, Aekkachai [VerfasserIn]
Ginn, Helen M [VerfasserIn]
Supasa, Piyada [VerfasserIn]
Liu, Chang [VerfasserIn]
Huo, Jiandong [VerfasserIn]
Mentzer, Alexander J [VerfasserIn]
Duyvesteyn, Helen M E [VerfasserIn]
Dijokaite-Guraliuc, Aiste [VerfasserIn]
Skelly, Donal [VerfasserIn]
Ritter, Thomas G [VerfasserIn]
Amini, Ali [VerfasserIn]
Bibi, Sagida [VerfasserIn]
Adele, Sandra [VerfasserIn]
Johnson, Sile Ann [VerfasserIn]
Constantinides, Bede [VerfasserIn]
Webster, Hermione [VerfasserIn]
Temperton, Nigel [VerfasserIn]
Klenerman, Paul [VerfasserIn]
Barnes, Eleanor [VerfasserIn]
Dunachie, Susanna J [VerfasserIn]
Crook, Derrick [VerfasserIn]
Pollard, Andrew J [VerfasserIn]
Lambe, Teresa [VerfasserIn]
Goulder, Philip [VerfasserIn]
OPTIC consortium, ISARIC4C consortium [VerfasserIn]
Paterson, Neil G [VerfasserIn]
Williams, Mark A [VerfasserIn]
Hall, David R [VerfasserIn]
Mongkolsapaya, Juthathip [VerfasserIn]
Fry, Elizabeth E [VerfasserIn]
Dejnirattisai, Wanwisa [VerfasserIn]
Ren, Jingshan [VerfasserIn]
Stuart, David I [VerfasserIn]
Screaton, Gavin R [VerfasserIn]

Links:

Volltext

Themen:

Angiotensin-Converting Enzyme 2
Antibodies, Monoclonal
Antibodies, Viral
Antibody responses
BA.1
BA.1.1
BA.2
COVID-19
COVID-19 Vaccines
Crystallography
EC 3.4.17.23
Epitopes
Immune escape
Journal Article
Neutralization
Omicron
Receptor binding domain
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
SARS-CoV-2
Spike Glycoprotein, Coronavirus
Spike protein, SARS-CoV-2
Variants of concern

Anmerkungen:

Date Completed 14.06.2022

Date Revised 20.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.cell.2022.05.014

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM341842923