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Validation of a Reporter Cell Line for Flavivirus Inhibition Assays

Here, we report the validation of a new reporter cell line, Hec1a-IFNB-Luc, for use in inhibition studies of various flaviviruses relevant to human pathology. The reporter system allows the detection of viral replication after luciferase gene activation driven by an interferon beta (IFN-β) promoter....

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Autores principales: Rezende, Tatiana M. T., Macera, Gabriella, Heyndrickx, Leo, Michiels, Johan, Coppens, Sandra, Thibaut, Hendrik Jan, Dallmeier, Kai, Van Esbroeck, Marjan, Neyts, Johan, Ariën, Kevin K., Bartholomeeusen, Koen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Society for Microbiology 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10100686/
https://www.ncbi.nlm.nih.gov/pubmed/36786659
http://dx.doi.org/10.1128/spectrum.05027-22
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author Rezende, Tatiana M. T.
Macera, Gabriella
Heyndrickx, Leo
Michiels, Johan
Coppens, Sandra
Thibaut, Hendrik Jan
Dallmeier, Kai
Van Esbroeck, Marjan
Neyts, Johan
Ariën, Kevin K.
Bartholomeeusen, Koen
author_facet Rezende, Tatiana M. T.
Macera, Gabriella
Heyndrickx, Leo
Michiels, Johan
Coppens, Sandra
Thibaut, Hendrik Jan
Dallmeier, Kai
Van Esbroeck, Marjan
Neyts, Johan
Ariën, Kevin K.
Bartholomeeusen, Koen
author_sort Rezende, Tatiana M. T.
collection PubMed
description Here, we report the validation of a new reporter cell line, Hec1a-IFNB-Luc, for use in inhibition studies of various flaviviruses relevant to human pathology. The reporter system allows the detection of viral replication after luciferase gene activation driven by an interferon beta (IFN-β) promoter. We found the reporter cell line to be highly responsive to all 10 flaviviruses tested, including the 4 dengue virus serotypes. The applicability of the Hec1a-IFNB-Luc reporter cell line for serodiagnostic purposes in neutralizing antibody assays was confirmed by comparison of its sensitivity and specificity to those of “gold-standard,” clinically applied, cytopathic effect-based assays, showing comparable performances. The reporter cell line used for the assessment of viral inhibition by small-molecule antiviral compounds was also confirmed, and the sensitivity of the Hec1a-IFNB-Luc reporter cell line was compared to those from published data reporting on the activity of the antivirals in various other assays, indicating that the Hec1a-IFNB-Luc reporter cell line allowed the determination of the inhibitory capacity at least as sensitive as alternative assays. By measuring luciferase activity as a proxy for viral replication, the reporter cell line allows early detection, reducing the time to results from often 5 to 7 days to 3 days, without the need for optical inspection of cytopathic effects, which often differ between viruses and cell lines, streamlining the development of flavivirus assays. IMPORTANCE The Hec1a-IFNB-Luc reporter cell line allows the detection of all 10 flaviviruses tested, including the 4 dengue virus serotypes. Its use for serodiagnostic purposes, measuring neutralizing antibody activity in sera, and the assessment of the antiviral activities of small-molecule compounds was confirmed, and it was found to be comparable to clinically applied assays. The Hec1a-IFNB-Luc reporter cell line allows the rapid and quantitative determination of antiviral effects on multiple human pathological flaviviruses using a single protocol.
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spelling pubmed-101006862023-04-14 Validation of a Reporter Cell Line for Flavivirus Inhibition Assays Rezende, Tatiana M. T. Macera, Gabriella Heyndrickx, Leo Michiels, Johan Coppens, Sandra Thibaut, Hendrik Jan Dallmeier, Kai Van Esbroeck, Marjan Neyts, Johan Ariën, Kevin K. Bartholomeeusen, Koen Microbiol Spectr Methods and Protocols Here, we report the validation of a new reporter cell line, Hec1a-IFNB-Luc, for use in inhibition studies of various flaviviruses relevant to human pathology. The reporter system allows the detection of viral replication after luciferase gene activation driven by an interferon beta (IFN-β) promoter. We found the reporter cell line to be highly responsive to all 10 flaviviruses tested, including the 4 dengue virus serotypes. The applicability of the Hec1a-IFNB-Luc reporter cell line for serodiagnostic purposes in neutralizing antibody assays was confirmed by comparison of its sensitivity and specificity to those of “gold-standard,” clinically applied, cytopathic effect-based assays, showing comparable performances. The reporter cell line used for the assessment of viral inhibition by small-molecule antiviral compounds was also confirmed, and the sensitivity of the Hec1a-IFNB-Luc reporter cell line was compared to those from published data reporting on the activity of the antivirals in various other assays, indicating that the Hec1a-IFNB-Luc reporter cell line allowed the determination of the inhibitory capacity at least as sensitive as alternative assays. By measuring luciferase activity as a proxy for viral replication, the reporter cell line allows early detection, reducing the time to results from often 5 to 7 days to 3 days, without the need for optical inspection of cytopathic effects, which often differ between viruses and cell lines, streamlining the development of flavivirus assays. IMPORTANCE The Hec1a-IFNB-Luc reporter cell line allows the detection of all 10 flaviviruses tested, including the 4 dengue virus serotypes. Its use for serodiagnostic purposes, measuring neutralizing antibody activity in sera, and the assessment of the antiviral activities of small-molecule compounds was confirmed, and it was found to be comparable to clinically applied assays. The Hec1a-IFNB-Luc reporter cell line allows the rapid and quantitative determination of antiviral effects on multiple human pathological flaviviruses using a single protocol. American Society for Microbiology 2023-02-14 /pmc/articles/PMC10100686/ /pubmed/36786659 http://dx.doi.org/10.1128/spectrum.05027-22 Text en Copyright © 2023 Rezende et al. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Methods and Protocols
Rezende, Tatiana M. T.
Macera, Gabriella
Heyndrickx, Leo
Michiels, Johan
Coppens, Sandra
Thibaut, Hendrik Jan
Dallmeier, Kai
Van Esbroeck, Marjan
Neyts, Johan
Ariën, Kevin K.
Bartholomeeusen, Koen
Validation of a Reporter Cell Line for Flavivirus Inhibition Assays
title Validation of a Reporter Cell Line for Flavivirus Inhibition Assays
title_full Validation of a Reporter Cell Line for Flavivirus Inhibition Assays
title_fullStr Validation of a Reporter Cell Line for Flavivirus Inhibition Assays
title_full_unstemmed Validation of a Reporter Cell Line for Flavivirus Inhibition Assays
title_short Validation of a Reporter Cell Line for Flavivirus Inhibition Assays
title_sort validation of a reporter cell line for flavivirus inhibition assays
topic Methods and Protocols
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10100686/
https://www.ncbi.nlm.nih.gov/pubmed/36786659
http://dx.doi.org/10.1128/spectrum.05027-22
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