Omicron-B.1.1.529 leads to widespread escape from neutralizing antibody responses

Summary On the 24th November 2021 the sequence of a new SARS CoV-2 viral isolate spreading rapidly in Southern Africa was announced, containing far more mutations in Spike (S) than previously reported variants. Neutralization titres of Omicron by sera from vaccinees and convalescent subjects infected with early pandemic as well as Alpha, Beta, Gamma, Delta are substantially reduced or fail to neutralize. Titres against Omicron are boosted by third vaccine doses and are high in cases both vaccinated and infected by Delta. Mutations in Omicron knock out or substantially reduce neutralization by most of a large panel of potent monoclonal antibodies and antibodies under commercial development. Omicron S has structural changes from earlier viruses, combining mutations conferring tight binding to ACE2 to unleash evolution driven by immune escape, leading to a large number of mutations in the ACE2 binding site which rebalance receptor affinity to that of early pandemic viruses..

Medienart:

Preprint

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

bioRxiv.org - (2021) vom: 24. Dez. Zur Gesamtaufnahme - year:2021

Sprache:

Englisch

Beteiligte Personen:

Dejnirattisai, Wanwisa [VerfasserIn]
Huo, Jiandong [VerfasserIn]
Zhou, Daming [VerfasserIn]
Zahradník, Jiří [VerfasserIn]
Supasa, Piyada [VerfasserIn]
Liu, Chang [VerfasserIn]
Duyvesteyn, Helen M.E. [VerfasserIn]
Ginn, Helen M. [VerfasserIn]
Mentzer, Alexander J. [VerfasserIn]
Tuekprakhon, Aekkachai [VerfasserIn]
Nutalai, Rungtiwa [VerfasserIn]
Wang, Beibei [VerfasserIn]
Dijokaite, Aiste [VerfasserIn]
Khan, Suman [VerfasserIn]
Avinoam, Ori [VerfasserIn]
Bahar, Mohammad [VerfasserIn]
Skelly, Donal [VerfasserIn]
Adele, Sandra [VerfasserIn]
Johnson, Sile Ann [VerfasserIn]
Amini, Ali [VerfasserIn]
Ritter, Thomas [VerfasserIn]
Mason, Chris [VerfasserIn]
Dold, Christina [VerfasserIn]
Pan, Daniel [VerfasserIn]
Assadi, Sara [VerfasserIn]
Bellass, Adam [VerfasserIn]
Omo-Dare, Nikki [VerfasserIn]
Koeckerling, David [VerfasserIn]
Flaxman, Amy [VerfasserIn]
Jenkin, Daniel [VerfasserIn]
Aley, Parvinder K [VerfasserIn]
Voysey, Merryn [VerfasserIn]
Costa Clemens, Sue Ann [VerfasserIn]
Naveca, Felipe Gomes [VerfasserIn]
Nascimento, Valdinete [VerfasserIn]
Nascimento, Fernanda [VerfasserIn]
Fernandes da Costa, Cristiano [VerfasserIn]
Resende, Paola Cristina [VerfasserIn]
Pauvolid-Correa, Alex [VerfasserIn]
Siqueira, Marilda M. [VerfasserIn]
Baillie, Vicky [VerfasserIn]
Serafin, Natali [VerfasserIn]
Ditse, Zanele [VerfasserIn]
Silva, Kelly Da [VerfasserIn]
Madhi, Shabir [VerfasserIn]
Nunes, Marta C [VerfasserIn]
Malik, Tariq [VerfasserIn]
Openshaw, Peter JM [VerfasserIn]
Baillie, J Kenneth [VerfasserIn]
Semple, Malcolm G [VerfasserIn]
Townsend, Alain R [VerfasserIn]
Huang, Kuan-Ying A. [VerfasserIn]
Tan, Tiong Kit [VerfasserIn]
Carroll, Miles W. [VerfasserIn]
Klenerman, Paul [VerfasserIn]
Barnes, Eleanor [VerfasserIn]
Dunachie, Susanna J. [VerfasserIn]
Constantinides, Bede [VerfasserIn]
Webster, Hermione [VerfasserIn]
Crook, Derrick [VerfasserIn]
Pollard, Andrew J [VerfasserIn]
Lambe, Teresa [VerfasserIn]
Paterson, Neil G. [VerfasserIn]
Williams, Mark A. [VerfasserIn]
Hall, David R. [VerfasserIn]
Fry, Elizabeth E. [VerfasserIn]
Mongkolsapaya, Juthathip [VerfasserIn]
Ren, Jingshan [VerfasserIn]
Schreiber, Gideon [VerfasserIn]
Stuart, David I. [VerfasserIn]
Screaton, Gavin R [VerfasserIn]

Links:

Volltext [kostenfrei]

doi:

10.1101/2021.12.03.471045

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

XBI033176868