Abstract
Currently, there is no registered treatment for infections with emerging zoonotic coronaviruses like SARS- and MERS-coronavirus. We here report that in cultured cells low-micromolar concentrations of alisporivir, a non-immunosuppressive cyclosporin A-analog, inhibit the replication of four different coronaviruses, including MERS- and SARS-coronavirus. Ribavirin was found to further potentiate the antiviral effect of alisporivir in these cell culture-based infection models, but this combination treatment was unable to improve the outcome of SARS-CoV infection in a mouse model. Nevertheless, our data provide a basis to further explore the potential of Cyp inhibitors as host-directed, broad-spectrum inhibitors of coronavirus replication.
Copyright © 2016 The Authors. Published by Elsevier B.V. All rights reserved.
Publication types
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Research Support, N.I.H., Intramural
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Antiviral Agents / pharmacology
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Cell Line
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Cells, Cultured
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Coronavirus Infections / drug therapy
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Coronavirus Infections / virology
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Cyclosporine / pharmacology*
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Cytopathogenic Effect, Viral / drug effects
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Disease Models, Animal
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Dose-Response Relationship, Drug
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Humans
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Mice
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Middle East Respiratory Syndrome Coronavirus / drug effects*
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Middle East Respiratory Syndrome Coronavirus / physiology*
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Severe Acute Respiratory Syndrome / drug therapy
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Severe Acute Respiratory Syndrome / virology
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Severe acute respiratory syndrome-related coronavirus / drug effects*
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Severe acute respiratory syndrome-related coronavirus / physiology*
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Virus Replication / drug effects*
Substances
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Antiviral Agents
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Cyclosporine
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alisporivir