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Piccoli L, Park YJ, Tortorici MA, Czudnochowski N, Walls AC, Beltramello M, Silacci-Fregni C, Pinto D, Rosen LE, Bowen JE, Acton OJ, Jaconi S, Guarino B, Minola A, Zatta F, Sprugasci N, Bassi J, Peter A, De Marco A, Nix JC, Mele F, Jovic S, Rodriguez BF, Gupta SV, Jin F, Piumatti G, Lo Presti G, Pellanda AF, Biggiogero M, Tarkowski M, Pizzuto MS, Cameroni E, Havenar-Daughton C, Smithey M, Hong D, Lepori V, Albanese E, Ceschi A, Bernasconi E, Elzi L, Ferrari P, Garzoni C, Riva A, Snell G, Sallusto F, Fink K, Virgin HW, Lanzavecchia A, Corti D, Veesler D. Mapping Neutralizing and Immunodominant Sites on the SARS-CoV-2 Spike Receptor-Binding Domain by Structure-Guided High-Resolution Serology. Cell 2020; 183:1024-1042.e21. [PMID: 32991844 PMCID: PMC7494283 DOI: 10.1016/j.cell.2020.09.037] [Citation(s) in RCA: 986] [Impact Index Per Article: 246.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/28/2020] [Accepted: 09/11/2020] [Indexed: 12/28/2022]
Abstract
Analysis of the specificity and kinetics of neutralizing antibodies (nAbs) elicited by SARS-CoV-2 infection is crucial for understanding immune protection and identifying targets for vaccine design. In a cohort of 647 SARS-CoV-2-infected subjects, we found that both the magnitude of Ab responses to SARS-CoV-2 spike (S) and nucleoprotein and nAb titers correlate with clinical scores. The receptor-binding domain (RBD) is immunodominant and the target of 90% of the neutralizing activity present in SARS-CoV-2 immune sera. Whereas overall RBD-specific serum IgG titers waned with a half-life of 49 days, nAb titers and avidity increased over time for some individuals, consistent with affinity maturation. We structurally defined an RBD antigenic map and serologically quantified serum Abs specific for distinct RBD epitopes leading to the identification of two major receptor-binding motif antigenic sites. Our results explain the immunodominance of the receptor-binding motif and will guide the design of COVID-19 vaccines and therapeutics. SARS-CoV-2 RBD is immunodominant and accounts for 90% of serum neutralizing activity RBD antibodies decline with a half-life of ∼50 days, but their avidity increases Structural definition of a SARS-CoV-2 RBD antigenic map using monoclonal antibodies ACE2-binding site dominates SARS-CoV-2 polyclonal neutralizing antibody responses
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Affiliation(s)
- Luca Piccoli
- Humabs BioMed SA, Vir Biotechnology, 6500 Bellinzona, Switzerland
| | - Young-Jun Park
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | - M Alejandra Tortorici
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA; Institut Pasteur and CNRS UMR 3569, Unité de Virologie Structurale, 75015 Paris, France
| | | | - Alexandra C Walls
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | | | | | - Dora Pinto
- Humabs BioMed SA, Vir Biotechnology, 6500 Bellinzona, Switzerland
| | | | - John E Bowen
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | - Oliver J Acton
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | - Stefano Jaconi
- Humabs BioMed SA, Vir Biotechnology, 6500 Bellinzona, Switzerland
| | - Barbara Guarino
- Humabs BioMed SA, Vir Biotechnology, 6500 Bellinzona, Switzerland
| | - Andrea Minola
- Humabs BioMed SA, Vir Biotechnology, 6500 Bellinzona, Switzerland
| | - Fabrizia Zatta
- Humabs BioMed SA, Vir Biotechnology, 6500 Bellinzona, Switzerland
| | - Nicole Sprugasci
- Humabs BioMed SA, Vir Biotechnology, 6500 Bellinzona, Switzerland
| | - Jessica Bassi
- Humabs BioMed SA, Vir Biotechnology, 6500 Bellinzona, Switzerland
| | - Alessia Peter
- Humabs BioMed SA, Vir Biotechnology, 6500 Bellinzona, Switzerland
| | - Anna De Marco
- Humabs BioMed SA, Vir Biotechnology, 6500 Bellinzona, Switzerland
| | - Jay C Nix
- Molecular Biology Consortium, Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Federico Mele
- Institute for Research in Biomedicine, Università della Svizzera italiana, 6500 Bellinzona, Switzerland
| | - Sandra Jovic
- Institute for Research in Biomedicine, Università della Svizzera italiana, 6500 Bellinzona, Switzerland
| | | | | | - Feng Jin
- Vir Biotechnology, San Francisco, CA 94158, USA
| | - Giovanni Piumatti
- Division of Primary Care, Geneva University Hospitals, 1205 Geneva, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera italiana, 6900 Lugano, Switzerland
| | - Giorgia Lo Presti
- Clinic of Internal Medicine and Infectious Diseases, Clinica Luganese Moncucco, 6900 Lugano, Switzerland
| | | | - Maira Biggiogero
- Clinic of Internal Medicine and Infectious Diseases, Clinica Luganese Moncucco, 6900 Lugano, Switzerland
| | - Maciej Tarkowski
- III Division of Infectious Diseases, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, 20157 Milan, Italy
| | - Matteo S Pizzuto
- Humabs BioMed SA, Vir Biotechnology, 6500 Bellinzona, Switzerland
| | | | | | | | - David Hong
- Vir Biotechnology, San Francisco, CA 94158, USA
| | | | - Emiliano Albanese
- Institute of Public Health, Università della Svizzera italiana, 6900 Lugano, Switzerland
| | - Alessandro Ceschi
- Faculty of Biomedical Sciences, Università della Svizzera italiana, 6900 Lugano, Switzerland; Division of Clinical Pharmacology and Toxicology, Institute of Pharmacological Sciences of Southern Switzerland, Ente Ospedaliero Cantonale, 6900 Lugano, Switzerland; Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Enos Bernasconi
- Division of Infectious Diseases, Ente Ospedaliero Cantonale, Ospedale Civico and Ospedale Italiano, 6900 Lugano, Switzerland
| | - Luigia Elzi
- Division of Infectious Diseases, Ente Ospedaliero Cantonale, Ospedale Regionale Bellinzona e Valli and Ospedale Regionale, 6600 Locarno, Switzerland
| | - Paolo Ferrari
- Department of Nephrology, Ospedale Civico Lugano, Ente Ospedaliero Cantonale, 6900 Lugano, Switzerland; Prince of Wales Hospital Clinical School, University of New South Wales, Sydney, NSW 2052, Australia
| | - Christian Garzoni
- Clinic of Internal Medicine and Infectious Diseases, Clinica Luganese Moncucco, 6900 Lugano, Switzerland
| | - Agostino Riva
- III Division of Infectious Diseases, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, 20157 Milan, Italy
| | | | - Federica Sallusto
- Institute for Research in Biomedicine, Università della Svizzera italiana, 6500 Bellinzona, Switzerland
| | - Katja Fink
- Humabs BioMed SA, Vir Biotechnology, 6500 Bellinzona, Switzerland
| | | | | | - Davide Corti
- Humabs BioMed SA, Vir Biotechnology, 6500 Bellinzona, Switzerland.
| | - David Veesler
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA.
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