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Viruses, volume 13, issue 6, pages 1133

Different Neutralization Sensitivity of SARS-CoV-2 Cell-to-Cell and Cell-Free Modes of Infection to Convalescent Sera

Publication typeJournal Article
Publication date2021-06-12
Journal: Viruses
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor4.7
ISSN19994915, 19994915
PubMed ID:  34204732
Infectious Diseases
Virology
Abstract

The COVID-19 pandemic caused by SARS-CoV-2 has posed a global threat to human lives and economics. One of the best ways to determine protection against the infection is to quantify the neutralizing activity of serum antibodies. Multiple assays have been developed to validate SARS-CoV-2 neutralization; most of them utilized lentiviral or vesicular stomatitis virus-based particles pseudotyped with the spike (S) protein, making them safe and acceptable to work with in many labs. However, these systems are only capable of measuring infection with purified particles. This study has developed a pseudoviral assay with replication-dependent reporter vectors that can accurately quantify the level of infection directly from the virus producing cell to the permissive target cell. Comparative analysis of cell-free and cell-to-cell infection revealed that the neutralizing activity of convalescent sera was more than tenfold lower in cell cocultures than in the cell-free mode of infection. As the pseudoviral system could not properly model the mechanisms of SARS-CoV-2 transmission, similar experiments were performed with replication-competent coronavirus, which detected nearly complete SARS-CoV-2 cell-to-cell infection resistance to neutralization by convalescent sera. These findings suggest that the cell-to-cell mode of SARS-CoV-2 transmission, for which the mechanisms are largely unknown, could be of great importance for treatment and prevention of COVID-19.

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GOST |
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GOST Copy
Kruglova N. S. et al. Different Neutralization Sensitivity of SARS-CoV-2 Cell-to-Cell and Cell-Free Modes of Infection to Convalescent Sera // Viruses. 2021. Vol. 13. No. 6. p. 1133.
GOST all authors (up to 50) Copy
Kruglova N. S., Siniavin A., Гущин В. А., Mazurov D. Different Neutralization Sensitivity of SARS-CoV-2 Cell-to-Cell and Cell-Free Modes of Infection to Convalescent Sera // Viruses. 2021. Vol. 13. No. 6. p. 1133.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.3390/v13061133
UR - https://doi.org/10.3390/v13061133
TI - Different Neutralization Sensitivity of SARS-CoV-2 Cell-to-Cell and Cell-Free Modes of Infection to Convalescent Sera
T2 - Viruses
AU - Mazurov, Dmitriy
AU - Kruglova, Natal’ya S.
AU - Siniavin, Andrei
AU - Гущин, В. А.
PY - 2021
DA - 2021/06/12 00:00:00
PB - Multidisciplinary Digital Publishing Institute (MDPI)
SP - 1133
IS - 6
VL - 13
PMID - 34204732
SN - 1999-4915
SN - 1999-4915
ER -
BibTex |
Cite this
BibTex Copy
@article{2021_Kruglova,
author = {Dmitriy Mazurov and Natal’ya S. Kruglova and Andrei Siniavin and В. А. Гущин},
title = {Different Neutralization Sensitivity of SARS-CoV-2 Cell-to-Cell and Cell-Free Modes of Infection to Convalescent Sera},
journal = {Viruses},
year = {2021},
volume = {13},
publisher = {Multidisciplinary Digital Publishing Institute (MDPI)},
month = {jun},
url = {https://doi.org/10.3390/v13061133},
number = {6},
pages = {1133},
doi = {10.3390/v13061133}
}
MLA
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MLA Copy
Kruglova, Natal’ya S., et al. “Different Neutralization Sensitivity of SARS-CoV-2 Cell-to-Cell and Cell-Free Modes of Infection to Convalescent Sera.” Viruses, vol. 13, no. 6, Jun. 2021, p. 1133. https://doi.org/10.3390/v13061133.
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