Abstract
Influenza A viruses (IAVs) impact the public health and global economy by causing yearly epidemics and occasional pandemics. Several anti-IAV drugs are available and many are in development. However, the question remains which of these antiviral agents may allow activation of immune responses and protect patients against co- and re-infections. To answer to this question, we analysed immuno-modulating properties of the antivirals saliphenylhalamide (SaliPhe), SNS-032, obatoclax, and gemcitabine, and found that only gemcitabine did not impair immune responses in infected cells. It also allowed activation of innate immune responses in lipopolysaccharide (LPS)- and interferon alpha (IFNα)-stimulated macrophages. Moreover, immuno-mediators produced by gemcitabine-treated IAV-infected macrophages were able to prime immune responses in non-infected cells. Thus, we identified an antiviral agent which might be beneficial for treatment of patients with severe viral infections.
Keywords:
Antiviral agents; Immune responses; Influenza A virus; Innate immunity; Virus-host interaction.
Copyright © 2015 The Authors. Published by Elsevier B.V. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Amides / pharmacology
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Antineoplastic Agents / pharmacology*
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Antiviral Agents / pharmacology*
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Cells, Cultured
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Coinfection / drug therapy
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Coinfection / virology
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Cytokines / metabolism
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Deoxycytidine / analogs & derivatives
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Deoxycytidine / pharmacology
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Gemcitabine
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Humans
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Immunity, Innate / drug effects
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Immunologic Factors / pharmacology*
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Indoles
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Influenza A virus / drug effects
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Influenza A virus / physiology
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Influenza, Human / drug therapy*
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Influenza, Human / immunology
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Influenza, Human / virology
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Interferon-alpha / drug effects
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Interferon-alpha / immunology
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Lipopolysaccharides / pharmacology
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Macrophages / drug effects*
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Macrophages / immunology
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Macrophages / virology*
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Oxazoles / pharmacology
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Phosphoproteins / metabolism
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Pyrroles / pharmacology
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RNA, Viral / biosynthesis
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Salicylates / pharmacology
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Thiazoles / pharmacology
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Virus Replication / drug effects
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Virus Replication / physiology
Substances
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Amides
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Antineoplastic Agents
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Antiviral Agents
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Cytokines
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Immunologic Factors
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Indoles
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Interferon-alpha
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Lipopolysaccharides
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N-(5-(((5-(1,1-dimethylethyl)-2-oxazolyl)methyl)thio)-2-thiazolyl)-4-piperidinecarboxamide
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Oxazoles
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Phosphoproteins
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Pyrroles
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RNA, Viral
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Salicylates
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Thiazoles
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saliphenylhalamide
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Deoxycytidine
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obatoclax
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Gemcitabine