Mechanism of Rhinovirus Immunity and Asthma
The majority of asthma exacerbations in children are caused by Rhinovirus (RV), a positive sense single stranded RNA virus of the Picornavirus family. The host has developed virus defense mechanisms that are mediated by the upregulation of interferon-activated signaling. However, the virus evades th...
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Frontiers Media S.A.
2021
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oai:doaj.org-article:c875f7c7393c470a93ae2cd6b52738622021-11-16T11:33:21ZMechanism of Rhinovirus Immunity and Asthma1664-322410.3389/fimmu.2021.731846https://doaj.org/article/c875f7c7393c470a93ae2cd6b52738622021-10-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fimmu.2021.731846/fullhttps://doaj.org/toc/1664-3224The majority of asthma exacerbations in children are caused by Rhinovirus (RV), a positive sense single stranded RNA virus of the Picornavirus family. The host has developed virus defense mechanisms that are mediated by the upregulation of interferon-activated signaling. However, the virus evades the immune system by inducing immunosuppressive cytokines and surface molecules like programmed cell death protein 1 (PD-1) and its ligand (PD-L1) on immunocompetent cells. Initially, RV infects epithelial cells, which constitute a physiologic mucosal barrier. Upon virus entrance, the host cell immediately recognizes viral components like dsRNA, ssRNA, viral glycoproteins or CpG-DNA by host pattern recognition receptors (PRRs). Activation of toll like receptors (TLR) 3, 7 and 8 within the endosome and through MDA-5 and RIG-I in the cytosol leads to the production of interferon (IFN) type I and other antiviral agents. Every cell type expresses IFNAR1/IFNAR2 receptors thus allowing a generalized antiviral activity of IFN type I resulting in the inhibition of viral replication in infected cells and preventing viral spread to non-infected cells. Among immune evasion mechanisms of the virus, there is downregulation of IFN type I and its receptor as well as induction of the immunosuppressive cytokine TGF-β. TGF-β promotes viral replication and is associated with induction of the immunosuppression signature markers LAP3, IDO and PD-L1. This article reviews the recent advances on the regulation of interferon type I expression in association with RV infection in asthmatics and the immunosuppression induced by the virus.Zuqin YangHannah MitländerTytti VuorinenSusetta FinottoFrontiers Media S.A.articleasthmarhinovirushost defenseimmune evasioninterferon type IImmunologic diseases. AllergyRC581-607ENFrontiers in Immunology, Vol 12 (2021) |
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asthma rhinovirus host defense immune evasion interferon type I Immunologic diseases. Allergy RC581-607 |
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asthma rhinovirus host defense immune evasion interferon type I Immunologic diseases. Allergy RC581-607 Zuqin Yang Hannah Mitländer Tytti Vuorinen Susetta Finotto Mechanism of Rhinovirus Immunity and Asthma |
description |
The majority of asthma exacerbations in children are caused by Rhinovirus (RV), a positive sense single stranded RNA virus of the Picornavirus family. The host has developed virus defense mechanisms that are mediated by the upregulation of interferon-activated signaling. However, the virus evades the immune system by inducing immunosuppressive cytokines and surface molecules like programmed cell death protein 1 (PD-1) and its ligand (PD-L1) on immunocompetent cells. Initially, RV infects epithelial cells, which constitute a physiologic mucosal barrier. Upon virus entrance, the host cell immediately recognizes viral components like dsRNA, ssRNA, viral glycoproteins or CpG-DNA by host pattern recognition receptors (PRRs). Activation of toll like receptors (TLR) 3, 7 and 8 within the endosome and through MDA-5 and RIG-I in the cytosol leads to the production of interferon (IFN) type I and other antiviral agents. Every cell type expresses IFNAR1/IFNAR2 receptors thus allowing a generalized antiviral activity of IFN type I resulting in the inhibition of viral replication in infected cells and preventing viral spread to non-infected cells. Among immune evasion mechanisms of the virus, there is downregulation of IFN type I and its receptor as well as induction of the immunosuppressive cytokine TGF-β. TGF-β promotes viral replication and is associated with induction of the immunosuppression signature markers LAP3, IDO and PD-L1. This article reviews the recent advances on the regulation of interferon type I expression in association with RV infection in asthmatics and the immunosuppression induced by the virus. |
format |
article |
author |
Zuqin Yang Hannah Mitländer Tytti Vuorinen Susetta Finotto |
author_facet |
Zuqin Yang Hannah Mitländer Tytti Vuorinen Susetta Finotto |
author_sort |
Zuqin Yang |
title |
Mechanism of Rhinovirus Immunity and Asthma |
title_short |
Mechanism of Rhinovirus Immunity and Asthma |
title_full |
Mechanism of Rhinovirus Immunity and Asthma |
title_fullStr |
Mechanism of Rhinovirus Immunity and Asthma |
title_full_unstemmed |
Mechanism of Rhinovirus Immunity and Asthma |
title_sort |
mechanism of rhinovirus immunity and asthma |
publisher |
Frontiers Media S.A. |
publishDate |
2021 |
url |
https://doaj.org/article/c875f7c7393c470a93ae2cd6b5273862 |
work_keys_str_mv |
AT zuqinyang mechanismofrhinovirusimmunityandasthma AT hannahmitlander mechanismofrhinovirusimmunityandasthma AT tyttivuorinen mechanismofrhinovirusimmunityandasthma AT susettafinotto mechanismofrhinovirusimmunityandasthma |
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