Article ; Online: Coronavirus Pseudotypes for All Circulating Human Coronaviruses for Quantification of Cross-Neutralizing Antibody Responses.
2021 Volume 13, Issue 8
Abstract: The novel coronavirus SARS-CoV-2 is the seventh identified human coronavirus. Understanding the extent of pre-existing immunity induced by seropositivity to endemic seasonal coronaviruses and the impact of cross-reactivity on COVID-19 disease progression ...
Abstract | The novel coronavirus SARS-CoV-2 is the seventh identified human coronavirus. Understanding the extent of pre-existing immunity induced by seropositivity to endemic seasonal coronaviruses and the impact of cross-reactivity on COVID-19 disease progression remains a key research question in immunity to SARS-CoV-2 and the immunopathology of COVID-2019 disease. This paper describes a panel of lentiviral pseudotypes bearing the spike (S) proteins for each of the seven human coronaviruses (HCoVs), generated under similar conditions optimized for high titre production allowing a high-throughput investigation of antibody neutralization breadth. Optimal production conditions and most readily available permissive target cell lines were determined for spike-mediated entry by each HCoV pseudotype: SARS-CoV-1, SARS-CoV-2 and HCoV-NL63 best transduced HEK293T/17 cells transfected with ACE2 and TMPRSS2, HCoV-229E and MERS-CoV preferentially entered HUH7 cells, and CHO cells were most permissive for the seasonal betacoronavirus HCoV-HKU1. Entry of ACE2 using pseudotypes was enhanced by ACE2 and TMPRSS2 expression in target cells, whilst TMPRSS2 transfection rendered HEK293T/17 cells permissive for HCoV-HKU1 and HCoV-OC43 entry. Additionally, pseudotype viruses were produced bearing additional coronavirus surface proteins, including the SARS-CoV-2 Envelope (E) and Membrane (M) proteins and HCoV-OC43/HCoV-HKU1 Haemagglutinin-Esterase (HE) proteins. This panel of lentiviral pseudotypes provides a safe, rapidly quantifiable and high-throughput tool for serological comparison of pan-coronavirus neutralizing responses; this can be used to elucidate antibody dynamics against individual coronaviruses and the effects of antibody cross-reactivity on clinical outcome following natural infection or vaccination. |
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MeSH term(s) | Animals ; Antibodies, Viral/blood ; Antibodies, Viral/immunology ; Broadly Neutralizing Antibodies/blood ; Broadly Neutralizing Antibodies/immunology ; COVID-19/immunology ; Cell Line ; Coronavirus/immunology ; Coronavirus 229E, Human/immunology ; Coronavirus 229E, Human/physiology ; Coronavirus NL63, Human/immunology ; Coronavirus NL63, Human/physiology ; Coronavirus OC43, Human/immunology ; Coronavirus OC43, Human/physiology ; Cross Reactions ; Humans ; Lentivirus/genetics ; Middle East Respiratory Syndrome Coronavirus/immunology ; Middle East Respiratory Syndrome Coronavirus/physiology ; Neutralization Tests ; Plasmids ; SARS-CoV-2/immunology ; SARS-CoV-2/physiology ; Spike Glycoprotein, Coronavirus/immunology ; Transfection ; Virus Internalization |
Chemical Substances | Antibodies, Viral ; Broadly Neutralizing Antibodies ; Spike Glycoprotein, Coronavirus ; spike protein, SARS-CoV-2 |
Language | English |
Publishing date | 2021-08-10 |
Publishing country | Switzerland |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 2516098-9 |
ISSN | 1999-4915 ; 1999-4915 |
ISSN (online) | 1999-4915 |
ISSN | 1999-4915 |
DOI | 10.3390/v13081579 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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