Preserved Omicron Spike specific antibody binding and Fc-recognition across COVID-19 vaccine platforms
Despite the dramatic spread of Omicron globally, even among highly vaccinated populations, death rates have not increased concomitantly. These data argue that alternative immune mechanisms, beyond neutralization, may continue to confer protection against severe disease. Beyond their ability to bind and block infection, antibodies contribute to control and clearance of multiple infections via their ability to direct antiviral immunity via Fc-effector mechanisms. Thus, here we probed the ability of vaccine induced antibodies, across three COVID-19 vaccines, to drive Fc-effector activity against Omicron. Despite the significant loss of IgM, IgA and IgG binding to the Omicron Receptor Binding Domain (RBD) across BNT162b2, mRNA-1273, and CoronaVac vaccines, stable isotype binding was observed across all of these vaccines to the Omicron Spike. Compromised RBD binding IgG was accompanied by a significant loss of cross RBD-specific antibody Fcγ-receptor binding by the CoronaVac vaccine, but preservation of RBD-specific FcγR2a and Fcγ3a binding across the mRNA vaccines. Conversely, Spike-specific antibodies exhibited persistent binding to Fcγ-receptors, across all three vaccines, albeit higher binding was observed with the mRNA vaccines, marked by a selective preservation of FcγR2a and Fcγ3a binding antibodies. Thus, despite the significant to near complete loss of Omicron neutralization across several vaccine platforms against Omicron, vaccine induced Spike-specific antibodies continue to recognize the virus and recruit Fc-receptors pointing to a persistent capacity for extra-neutralizing antibodies to contribute Omicron disease attenuation.
| Errataetall: |
UpdateIn: Sci Transl Med. 2022 Mar 15;:eabn9243. - PMID 35289637 |
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| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2021 |
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| Enthalten in: |
medRxiv : the preprint server for health sciences - (2021) vom: 27. Dez. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Bartsch, Yannic [VerfasserIn] |
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Date Revised 05.04.2024 published: Electronic UpdateIn: Sci Transl Med. 2022 Mar 15;:eabn9243. - PMID 35289637 Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1101/2021.12.24.21268378 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM335165257 |
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| 500 | |a UpdateIn: Sci Transl Med. 2022 Mar 15;:eabn9243. - PMID 35289637 | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Despite the dramatic spread of Omicron globally, even among highly vaccinated populations, death rates have not increased concomitantly. These data argue that alternative immune mechanisms, beyond neutralization, may continue to confer protection against severe disease. Beyond their ability to bind and block infection, antibodies contribute to control and clearance of multiple infections via their ability to direct antiviral immunity via Fc-effector mechanisms. Thus, here we probed the ability of vaccine induced antibodies, across three COVID-19 vaccines, to drive Fc-effector activity against Omicron. Despite the significant loss of IgM, IgA and IgG binding to the Omicron Receptor Binding Domain (RBD) across BNT162b2, mRNA-1273, and CoronaVac vaccines, stable isotype binding was observed across all of these vaccines to the Omicron Spike. Compromised RBD binding IgG was accompanied by a significant loss of cross RBD-specific antibody Fcγ-receptor binding by the CoronaVac vaccine, but preservation of RBD-specific FcγR2a and Fcγ3a binding across the mRNA vaccines. Conversely, Spike-specific antibodies exhibited persistent binding to Fcγ-receptors, across all three vaccines, albeit higher binding was observed with the mRNA vaccines, marked by a selective preservation of FcγR2a and Fcγ3a binding antibodies. Thus, despite the significant to near complete loss of Omicron neutralization across several vaccine platforms against Omicron, vaccine induced Spike-specific antibodies continue to recognize the virus and recruit Fc-receptors pointing to a persistent capacity for extra-neutralizing antibodies to contribute Omicron disease attenuation | ||
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| 700 | 1 | |a Kang, Jaweon |e verfasserin |4 aut | |
| 700 | 1 | |a José Avendaño, María |e verfasserin |4 aut | |
| 700 | 1 | |a Serrano, Eileen F |e verfasserin |4 aut | |
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| 700 | 1 | |a Riquelme, Arnoldo |e verfasserin |4 aut | |
| 700 | 1 | |a Medina, Rafael A |e verfasserin |4 aut | |
| 700 | 1 | |a Alter, Galit |e verfasserin |4 aut | |
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