Article ; Online: SARS-CoV-2-induced humoral immunity through B cell epitope analysis in COVID-19 infected individuals.
2021 Volume 11, Issue 1, Page(s) 5934
Abstract: The aim of this study is to understand adaptive immunity to SARS-CoV-2 through the analysis of B ... cell epitope and neutralizing activity in coronavirus disease 2019 (COVID-19) patients. We obtained ... but not IgM, antibody titer of COVID-19 patients. In the analysis of the predicted the linear B cell ...
Abstract | The aim of this study is to understand adaptive immunity to SARS-CoV-2 through the analysis of B cell epitope and neutralizing activity in coronavirus disease 2019 (COVID-19) patients. We obtained serum from forty-three COVID-19 patients from patients in the intensive care unit of Osaka University Hospital (n = 12) and in Osaka City Juso Hospital (n = 31). Most individuals revealed neutralizing activity against SARS-CoV-2 assessed by a pseudotype virus-neutralizing assay. The antibody production against the spike glycoprotein (S protein) or receptor-binding domain (RBD) of SARS-CoV-2 was elevated, with large individual differences, as assessed by ELISA. We observed the correlation between neutralizing antibody titer and IgG, but not IgM, antibody titer of COVID-19 patients. In the analysis of the predicted the linear B cell epitopes, hot spots in the N-terminal domain of the S protein were observed in the serum from patients in the intensive care unit of Osaka University Hospital. Overall, the analysis of antibody production and B cell epitopes of the S protein from patient serum may provide a novel target for the vaccine development against SARS-CoV-2. |
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MeSH term(s) | Amino Acid Sequence ; Antibodies, Neutralizing/blood ; Antibodies, Neutralizing/immunology ; Antibodies, Viral/blood ; Antibodies, Viral/immunology ; COVID-19/epidemiology ; COVID-19/immunology ; COVID-19/virology ; Enzyme-Linked Immunosorbent Assay ; Epitopes, B-Lymphocyte/immunology ; Female ; Host-Pathogen Interactions ; Humans ; Immunity, Humoral ; Male ; SARS-CoV-2/immunology ; Spike Glycoprotein, Coronavirus/chemistry ; Spike Glycoprotein, Coronavirus/immunology |
Chemical Substances | Antibodies, Neutralizing ; Antibodies, Viral ; Epitopes, B-Lymphocyte ; Spike Glycoprotein, Coronavirus |
Language | English |
Publishing date | 2021-03-15 |
Publishing country | England |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 2615211-3 |
ISSN | 2045-2322 ; 2045-2322 |
ISSN (online) | 2045-2322 |
ISSN | 2045-2322 |
DOI | 10.1038/s41598-021-85202-9 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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