Evaluation of serological anti-SARS-CoV-2 chemiluminescent immunoassays correlated to live virus neutralization test, for the detection of anti-RBD antibodies as a relevant alternative in COVID-19 large-scale neutralizing activity monitoring

Copyright © 2021 Elsevier Inc. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 234(2022) vom: 07. Jan., Seite 108918
1. Verfasser: Cristiano, Antonio (VerfasserIn)
Weitere Verfasser: Pieri, Massimo, Sarubbi, Serena, Pelagalli, Martina, Calugi, Graziella, Tomassetti, Flaminia, Bernardini, Sergio, Nuccetelli, Marzia
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Anti-SARS-CoV-2 antibodies COVID-19 Live virus neutralization test SARS-CoV-2 Serological immunoassays Antibodies, Neutralizing Antibodies, Viral Spike Glycoprotein, Coronavirus
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245 1 0 |a Evaluation of serological anti-SARS-CoV-2 chemiluminescent immunoassays correlated to live virus neutralization test, for the detection of anti-RBD antibodies as a relevant alternative in COVID-19 large-scale neutralizing activity monitoring 
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520 |a The Spike-Receptor Binding Domain (S-RBD) is considered the most antigenic protein in SARS-CoV-2 and probably the key player in SARS-CoV-2 immune response. Quantitative immunoassays may help establish an anti-RBD Abs threshold as an indication of protective immunity. Since different immunoassays are commercial, the standard reference method for the neutralizing activity is the live Virus Neutralization Test (VNT). In this study, anti-RBD IgG levels were detected with two chemiluminescent immunoassays in paucisymptomatic, symptomatic and vaccinated subjects, and their neutralizing activity was correlated to VNT titer, using SARS-CoV-2 original and British variant strains. Both immunoassays confirmed higher anti-RBD Abs levels in vaccinated subjects. Furthermore, despite different anti-RBD Abs median concentrations between the immunoassays, a strong positive correlation with VNT was observed. In conclusion, although the SARS-CoV-2 immune response heterogeneity, the use of immunoassays can help in large-scale monitoring of COVID-19 samples, becoming a valid alternative to VNT test for diagnostic routine laboratories 
650 4 |a Journal Article 
650 4 |a Anti-SARS-CoV-2 antibodies 
650 4 |a COVID-19 
650 4 |a Live virus neutralization test 
650 4 |a SARS-CoV-2 
650 4 |a Serological immunoassays 
650 7 |a Antibodies, Neutralizing  |2 NLM 
650 7 |a Antibodies, Viral  |2 NLM 
650 7 |a Spike Glycoprotein, Coronavirus  |2 NLM 
700 1 |a Pieri, Massimo  |e verfasserin  |4 aut 
700 1 |a Sarubbi, Serena  |e verfasserin  |4 aut 
700 1 |a Pelagalli, Martina  |e verfasserin  |4 aut 
700 1 |a Calugi, Graziella  |e verfasserin  |4 aut 
700 1 |a Tomassetti, Flaminia  |e verfasserin  |4 aut 
700 1 |a Bernardini, Sergio  |e verfasserin  |4 aut 
700 1 |a Nuccetelli, Marzia  |e verfasserin  |4 aut 
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856 4 0 |u http://dx.doi.org/10.1016/j.clim.2021.108918  |3 Volltext 
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