Article ; Online: SARS-CoV-2 multi-antigen protein microarray for detailed characterization of antibody responses in COVID-19 patients.
2023 Volume 18, Issue 2, Page(s) e0276829
Abstract: Antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) target multiple epitopes on different domains of the spike protein, and other SARS-CoV-2 proteins. We developed a SARS-CoV-2 multi-antigen protein microarray with the ... ...
Abstract | Antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) target multiple epitopes on different domains of the spike protein, and other SARS-CoV-2 proteins. We developed a SARS-CoV-2 multi-antigen protein microarray with the nucleocapsid, spike and its domains (S1, S2), and variants with single (D614G, E484K, N501Y) or double substitutions (N501Y/Deletion69/70), allowing a more detailed high-throughput analysis of the antibody repertoire following infection. The assay was demonstrated to be reliable and comparable to ELISA. We analyzed antibodies from 18 COVID-19 patients and 12 recovered convalescent donors. The S IgG level was higher than N IgG in most of the COVID-19 patients, and the receptor-binding domain of S1 showed high reactivity, but no antibodies were detected against the heptad repeat domain 2 of S2. Furthermore, antibodies were detected against S variants with single and double substitutions in COVID-19 patients who were infected with SARS-CoV-2 early in the pandemic. Here we demonstrated that the SARS-CoV-2 multi-antigen protein microarray is a powerful tool for detailed characterization of antibody responses, with potential utility in understanding the disease progress and assessing current vaccines and therapies against evolving SARS-CoV-2. |
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MeSH term(s) | Humans ; Antibodies, Neutralizing/genetics ; Antibodies, Neutralizing/immunology ; Antibodies, Viral/genetics ; Antibodies, Viral/immunology ; Antibody Formation/genetics ; Antibody Formation/immunology ; COVID-19/genetics ; COVID-19/immunology ; COVID-19/virology ; Immunoglobulin G ; Protein Array Analysis ; SARS-CoV-2/genetics ; Spike Glycoprotein, Coronavirus |
Chemical Substances | Antibodies, Neutralizing ; Antibodies, Viral ; Immunoglobulin G ; Spike Glycoprotein, Coronavirus ; spike protein, SARS-CoV-2 |
Language | English |
Publishing date | 2023-02-09 |
Publishing country | United States |
Document type | Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't |
ZDB-ID | 2267670-3 |
ISSN | 1932-6203 ; 1932-6203 |
ISSN (online) | 1932-6203 |
ISSN | 1932-6203 |
DOI | 10.1371/journal.pone.0276829 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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