Anti-Receptor-Binding Domain Immunoglobulin G Antibody as a Predictor of Seropositivity for Anti-SARS-CoV-2 Neutralizing Antibody

Neutralizing antibody detection can assess the incidence of coronavirus disease 2019 (COVID-19) and the effectiveness of vaccines. However, commercial reagents for neutralizing antibodies were developed after the anti- severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) immunoglobulin (Ig)...

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Veröffentlicht in:Archives of pathology & laboratory medicine (1976) 2022-07, Vol.146 (7), p.814-821
Hauptverfasser: Xue, Jian-Hang, Wang, Yong-Jing, Li, Wei, Li, Qiu-Ling, Xu, Qiu-Yan, Niu, Jian-Jun, Liu, Li-Li
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container_issue 7
container_start_page 814
container_title Archives of pathology & laboratory medicine (1976)
container_volume 146
creator Xue, Jian-Hang
Wang, Yong-Jing
Li, Wei
Li, Qiu-Ling
Xu, Qiu-Yan
Niu, Jian-Jun
Liu, Li-Li
description Neutralizing antibody detection can assess the incidence of coronavirus disease 2019 (COVID-19) and the effectiveness of vaccines. However, commercial reagents for neutralizing antibodies were developed after the anti- severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) immunoglobulin (Ig) G and IgM antibodies. Therefore, some laboratories did not perform neutralizing antibody testing services due to multiple factors. To find a fast, accurate, and economical alternative for the detection of neutralizing antibodies for the development of COVID-19 screening programs. The response and correlation of three antibodies (anti-spike protein (S) neutralizing antibody, total anti-receptor-binding domain (RBD) antibody, and anti-RBD IgG) was determined by observing the dynamics in 61 participants for 160 days post vaccination. The levels of neutralizing and anti-RBD IgG antibodies reached their peak values on day 42 post vaccination (120.75 IU/mL and 14.38 signal-to-cutoff ratio [S/CO], respectively). The total antibody levels peaked at 138.47 S/CO on day 35 post vaccination. The strongest correlation was found between neutralizing and anti-RBD IgG antibody levels (r = 0.894, P < .001). The area under the receiver operating characteristic curve (ROC-AUC) for total antibody levels for the prediction of seropositivity for neutralizing antibodies was 0.881 (P < .001) and that for anti-RBD IgG antibody levels was 0.937 (P < .001). Neutralizing and anti-RBD IgG antibody levels were strongly correlated, and thus anti-RBD IgG antibody levels can be used for accurate assessment of immunity following SARS-CoV-2 infection or vaccination.
doi_str_mv 10.5858/arpa.2022-0041-SA
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laboratory medicine (1976)</jtitle><addtitle>Arch Pathol Lab Med</addtitle><date>2022-07-01</date><risdate>2022</risdate><volume>146</volume><issue>7</issue><spage>814</spage><epage>821</epage><pages>814-821</pages><issn>0003-9985</issn><issn>1543-2165</issn><eissn>1543-2165</eissn><abstract>Neutralizing antibody detection can assess the incidence of coronavirus disease 2019 (COVID-19) and the effectiveness of vaccines. However, commercial reagents for neutralizing antibodies were developed after the anti- severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) immunoglobulin (Ig) G and IgM antibodies. Therefore, some laboratories did not perform neutralizing antibody testing services due to multiple factors. To find a fast, accurate, and economical alternative for the detection of neutralizing antibodies for the development of COVID-19 screening programs. The response and correlation of three antibodies (anti-spike protein (S) neutralizing antibody, total anti-receptor-binding domain (RBD) antibody, and anti-RBD IgG) was determined by observing the dynamics in 61 participants for 160 days post vaccination. The levels of neutralizing and anti-RBD IgG antibodies reached their peak values on day 42 post vaccination (120.75 IU/mL and 14.38 signal-to-cutoff ratio [S/CO], respectively). The total antibody levels peaked at 138.47 S/CO on day 35 post vaccination. The strongest correlation was found between neutralizing and anti-RBD IgG antibody levels (r = 0.894, P &lt; .001). The area under the receiver operating characteristic curve (ROC-AUC) for total antibody levels for the prediction of seropositivity for neutralizing antibodies was 0.881 (P &lt; .001) and that for anti-RBD IgG antibody levels was 0.937 (P &lt; .001). Neutralizing and anti-RBD IgG antibody levels were strongly correlated, and thus anti-RBD IgG antibody levels can be used for accurate assessment of immunity following SARS-CoV-2 infection or vaccination.</abstract><cop>United States</cop><pub>College of American Pathologists</pub><pmid>35380612</pmid><doi>10.5858/arpa.2022-0041-SA</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record>
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source Allen Press Journals; EZB-FREE-00999 freely available EZB journals
subjects ACE2
Angiotensin
Angiotensin-converting enzyme 2
Antibodies
Antigens
Blood & organ donations
Blood donors
Chronic illnesses
Coronaviruses
COVID-19
COVID-19 vaccines
Health aspects
Hypersensitivity
Immune system
Immunoassay
Immunoglobulin G
Immunoglobulin M
Immunoglobulins
Laboratories
Measurement
Peptidyl-dipeptidase A
Population studies
Proteins
Severe acute respiratory syndrome coronavirus 2
Spike protein
Statistical analysis
Testing
Vaccine efficacy
Vaccines
title Anti-Receptor-Binding Domain Immunoglobulin G Antibody as a Predictor of Seropositivity for Anti-SARS-CoV-2 Neutralizing Antibody
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