Validation of a SARS-CoV-2 Surrogate Neutralization Test Detecting Neutralizing Antibodies against the Major Variants of Concern

SARS-CoV-2 infection and/or vaccination elicit a broad range of neutralizing antibody responses against the different variants of concern (VOC). We established a new variant-adapted surrogate virus neutralization test (sVNT) and assessed the neutralization activity against the ancestral B.1 (WT) and...

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Main Authors: Eveline Santos da Silva, Jean-Yves Servais, Michel Kohnen, Vic Arendt, Therese Staub, the CON-VINCE Consortium, the CoVaLux Consortium, Rejko Krüger, Guy Fagherazzi, Paul Wilmes, Judith M. Hübschen, Markus Ollert, Danielle Perez-Bercoff, Carole Seguin-Devaux
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:International Journal of Molecular Sciences
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Online Access:https://www.mdpi.com/1422-0067/24/19/14965
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author Eveline Santos da Silva
Jean-Yves Servais
Michel Kohnen
Vic Arendt
Therese Staub
the CON-VINCE Consortium
the CoVaLux Consortium
Rejko Krüger
Guy Fagherazzi
Paul Wilmes
Judith M. Hübschen
Markus Ollert
Danielle Perez-Bercoff
Carole Seguin-Devaux
author_facet Eveline Santos da Silva
Jean-Yves Servais
Michel Kohnen
Vic Arendt
Therese Staub
the CON-VINCE Consortium
the CoVaLux Consortium
Rejko Krüger
Guy Fagherazzi
Paul Wilmes
Judith M. Hübschen
Markus Ollert
Danielle Perez-Bercoff
Carole Seguin-Devaux
author_sort Eveline Santos da Silva
collection DOAJ
description SARS-CoV-2 infection and/or vaccination elicit a broad range of neutralizing antibody responses against the different variants of concern (VOC). We established a new variant-adapted surrogate virus neutralization test (sVNT) and assessed the neutralization activity against the ancestral B.1 (WT) and VOC Delta, Omicron BA.1, BA.2, and BA.5. Analytical performances were compared against the respective VOC to the reference virus neutralization test (VNT) and two CE-IVD labeled kits using three different cohorts collected during the COVID-19 waves. Correlation analyses showed moderate to strong correlation for Omicron sub-variants (Spearman’s r = 0.7081 for BA.1, r = 0.7205 for BA.2, and r = 0.6042 for BA.5), and for WT (r = 0.8458) and Delta-sVNT (r = 0.8158), respectively. Comparison of the WT-sVNT performance with two CE-IVD kits, the “Icosagen SARS-CoV-2 Neutralizing Antibody ELISA kit” and the “Genscript cPass, kit” revealed an overall good correlation ranging from 0.8673 to −0.8773 and a midway profile between both commercial kits with 87.76% sensitivity and 90.48% clinical specificity. The BA.2-sVNT performance was similar to the BA.2 Genscript test. Finally, a correlation analysis revealed a strong association (r = 0.8583) between BA.5-sVNT and VNT sVNT using a double-vaccinated cohort (<i>n</i> = 100) and an Omicron-breakthrough infection cohort (<i>n</i> = 91). In conclusion, the sVNT allows for the efficient prediction of immune protection against the various VOCs.
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spelling doaj.art-3b2f62ad7cbd47de9307f35be9e6928f2023-11-19T14:33:13ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-10-0124191496510.3390/ijms241914965Validation of a SARS-CoV-2 Surrogate Neutralization Test Detecting Neutralizing Antibodies against the Major Variants of ConcernEveline Santos da Silva0Jean-Yves Servais1Michel Kohnen2Vic Arendt3Therese Staub4the CON-VINCE Consortiumthe CoVaLux ConsortiumRejko Krüger5Guy Fagherazzi6Paul Wilmes7Judith M. Hübschen8Markus Ollert9Danielle Perez-Bercoff10Carole Seguin-Devaux11Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, LuxembourgDepartment of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, LuxembourgNational Service of Infectious Diseases, Centre Hospitalier de Luxembourg, 4 Rue Ernest Barblé, L-1210 Luxembourg, LuxembourgNational Service of Infectious Diseases, Centre Hospitalier de Luxembourg, 4 Rue Ernest Barblé, L-1210 Luxembourg, LuxembourgNational Service of Infectious Diseases, Centre Hospitalier de Luxembourg, 4 Rue Ernest Barblé, L-1210 Luxembourg, LuxembourgTransversal Translational Medicine, Luxembourg Institute of Health, Centre Hospitalier de Luxembourg, 4 rue Ernest Barblé, L-1210 Luxembourg, LuxembourgDepartment of Precision Health, Luxembourg Institute of Health, 1AB Rue Thomas Edison, L-1445 Strassen, LuxembourgSystems Ecology Group, Luxembourg Centre for Systems Biomedicine, 7 Avenue des Hauts Fourneaux, L-4362 Esch-sur-Alzette, LuxembourgDepartment of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, LuxembourgDepartment of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, LuxembourgDepartment of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, LuxembourgDepartment of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, LuxembourgSARS-CoV-2 infection and/or vaccination elicit a broad range of neutralizing antibody responses against the different variants of concern (VOC). We established a new variant-adapted surrogate virus neutralization test (sVNT) and assessed the neutralization activity against the ancestral B.1 (WT) and VOC Delta, Omicron BA.1, BA.2, and BA.5. Analytical performances were compared against the respective VOC to the reference virus neutralization test (VNT) and two CE-IVD labeled kits using three different cohorts collected during the COVID-19 waves. Correlation analyses showed moderate to strong correlation for Omicron sub-variants (Spearman’s r = 0.7081 for BA.1, r = 0.7205 for BA.2, and r = 0.6042 for BA.5), and for WT (r = 0.8458) and Delta-sVNT (r = 0.8158), respectively. Comparison of the WT-sVNT performance with two CE-IVD kits, the “Icosagen SARS-CoV-2 Neutralizing Antibody ELISA kit” and the “Genscript cPass, kit” revealed an overall good correlation ranging from 0.8673 to −0.8773 and a midway profile between both commercial kits with 87.76% sensitivity and 90.48% clinical specificity. The BA.2-sVNT performance was similar to the BA.2 Genscript test. Finally, a correlation analysis revealed a strong association (r = 0.8583) between BA.5-sVNT and VNT sVNT using a double-vaccinated cohort (<i>n</i> = 100) and an Omicron-breakthrough infection cohort (<i>n</i> = 91). In conclusion, the sVNT allows for the efficient prediction of immune protection against the various VOCs.https://www.mdpi.com/1422-0067/24/19/14965SARS-CoV-2viral neutralization assayimmunityneutralizing antibodiesvaccines
spellingShingle Eveline Santos da Silva
Jean-Yves Servais
Michel Kohnen
Vic Arendt
Therese Staub
the CON-VINCE Consortium
the CoVaLux Consortium
Rejko Krüger
Guy Fagherazzi
Paul Wilmes
Judith M. Hübschen
Markus Ollert
Danielle Perez-Bercoff
Carole Seguin-Devaux
Validation of a SARS-CoV-2 Surrogate Neutralization Test Detecting Neutralizing Antibodies against the Major Variants of Concern
International Journal of Molecular Sciences
SARS-CoV-2
viral neutralization assay
immunity
neutralizing antibodies
vaccines
title Validation of a SARS-CoV-2 Surrogate Neutralization Test Detecting Neutralizing Antibodies against the Major Variants of Concern
title_full Validation of a SARS-CoV-2 Surrogate Neutralization Test Detecting Neutralizing Antibodies against the Major Variants of Concern
title_fullStr Validation of a SARS-CoV-2 Surrogate Neutralization Test Detecting Neutralizing Antibodies against the Major Variants of Concern
title_full_unstemmed Validation of a SARS-CoV-2 Surrogate Neutralization Test Detecting Neutralizing Antibodies against the Major Variants of Concern
title_short Validation of a SARS-CoV-2 Surrogate Neutralization Test Detecting Neutralizing Antibodies against the Major Variants of Concern
title_sort validation of a sars cov 2 surrogate neutralization test detecting neutralizing antibodies against the major variants of concern
topic SARS-CoV-2
viral neutralization assay
immunity
neutralizing antibodies
vaccines
url https://www.mdpi.com/1422-0067/24/19/14965
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