Viral Innate Immune Evasion and the Pathogenesis of Emerging RNA Virus Infections

Positive-sense single-stranded RNA (+ssRNA) viruses comprise many (re-)emerging human pathogens that pose a public health problem. Our innate immune system and, in particular, the interferon response form the important first line of defence against these viruses. Given their genetic flexibility, the...

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Main Authors: Tessa Nelemans, Marjolein Kikkert
Format: Article
Language:English
Published: MDPI AG 2019-10-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/11/10/961
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author Tessa Nelemans
Marjolein Kikkert
author_facet Tessa Nelemans
Marjolein Kikkert
author_sort Tessa Nelemans
collection DOAJ
description Positive-sense single-stranded RNA (+ssRNA) viruses comprise many (re-)emerging human pathogens that pose a public health problem. Our innate immune system and, in particular, the interferon response form the important first line of defence against these viruses. Given their genetic flexibility, these viruses have therefore developed multiple strategies to evade the innate immune response in order to optimize their replication capacity. Already many molecular mechanisms of innate immune evasion by +ssRNA viruses have been identified. However, research addressing the effect of host innate immune evasion on the pathology caused by viral infections is less prevalent in the literature, though very relevant and interesting. Since interferons have been implicated in inflammatory diseases and immunopathology in addition to their protective role in infection, antagonizing the immune response may have an ambiguous effect on the clinical outcome of the viral disease. Therefore, this review discusses what is currently known about the role of interferons and host immune evasion in the pathogenesis of emerging coronaviruses, alphaviruses and flaviviruses.
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spelling doaj.art-0c05019134954110830ea46f3c1546f72022-12-21T23:07:22ZengMDPI AGViruses1999-49152019-10-01111096110.3390/v11100961v11100961Viral Innate Immune Evasion and the Pathogenesis of Emerging RNA Virus InfectionsTessa Nelemans0Marjolein Kikkert1Department of Medical Microbiology, Leiden University Medical Center, Leiden, 2333 ZA, The NetherlandsDepartment of Medical Microbiology, Leiden University Medical Center, Leiden, 2333 ZA, The NetherlandsPositive-sense single-stranded RNA (+ssRNA) viruses comprise many (re-)emerging human pathogens that pose a public health problem. Our innate immune system and, in particular, the interferon response form the important first line of defence against these viruses. Given their genetic flexibility, these viruses have therefore developed multiple strategies to evade the innate immune response in order to optimize their replication capacity. Already many molecular mechanisms of innate immune evasion by +ssRNA viruses have been identified. However, research addressing the effect of host innate immune evasion on the pathology caused by viral infections is less prevalent in the literature, though very relevant and interesting. Since interferons have been implicated in inflammatory diseases and immunopathology in addition to their protective role in infection, antagonizing the immune response may have an ambiguous effect on the clinical outcome of the viral disease. Therefore, this review discusses what is currently known about the role of interferons and host immune evasion in the pathogenesis of emerging coronaviruses, alphaviruses and flaviviruses.https://www.mdpi.com/1999-4915/11/10/961positive-sense single-stranded rna virusesinnate immune evasiontype i and iii interferonsviral pathogenesis
spellingShingle Tessa Nelemans
Marjolein Kikkert
Viral Innate Immune Evasion and the Pathogenesis of Emerging RNA Virus Infections
Viruses
positive-sense single-stranded rna viruses
innate immune evasion
type i and iii interferons
viral pathogenesis
title Viral Innate Immune Evasion and the Pathogenesis of Emerging RNA Virus Infections
title_full Viral Innate Immune Evasion and the Pathogenesis of Emerging RNA Virus Infections
title_fullStr Viral Innate Immune Evasion and the Pathogenesis of Emerging RNA Virus Infections
title_full_unstemmed Viral Innate Immune Evasion and the Pathogenesis of Emerging RNA Virus Infections
title_short Viral Innate Immune Evasion and the Pathogenesis of Emerging RNA Virus Infections
title_sort viral innate immune evasion and the pathogenesis of emerging rna virus infections
topic positive-sense single-stranded rna viruses
innate immune evasion
type i and iii interferons
viral pathogenesis
url https://www.mdpi.com/1999-4915/11/10/961
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