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Control of coronavirus infection through plasmacytoid dendritic-cell-derived type I interferon

Identifieur interne : 003B81 ( Main/Exploration ); précédent : 003B80; suivant : 003B82

Control of coronavirus infection through plasmacytoid dendritic-cell-derived type I interferon

Auteurs : Luisa Cervantes Barragan [Suisse, Mexique] ; Roland Zust [Suisse] ; Friedemann Weber [Allemagne] ; Martin Spiegel [Allemagne] ; Karl S. Lang [Suisse] ; Shizuo Akira [Japon] ; Volker Thiel [Suisse] ; Burkhard Ludewig [Suisse]

Source :

RBID : Pascal:07-0181449

Descripteurs français

English descriptors

Abstract

This study demonstrates a unique and crucial role of plasmacytoid dendritic cells (pDCs) and pDC-derived type I interferons (IFNs) in the pathogenesis of mouse coronavirus infection. pDCs controlled the fast replicating mouse hepatitis virus (MHV) through the immediate production of type I IFNs. Recognition of MHV by pDCs was mediated via TLR7 ensuring a swift IFN-a production following encounter with this cytopathic RNA virus. Furthermore, the particular type I IFN response pattern was not restricted to the murine coronavirus, but was also found in infection with the highly cytopathic human severe acute respiratory syndrome (SARS) coronavirus. Taken together, our results suggest that rapid production of type I IFNs by pDCs is essential for the control of potentially lethal coronavirus infections.


Affiliations:


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Le document en format XML

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<term>Coronavirus Infections (immunology)</term>
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<div type="abstract" xml:lang="en">This study demonstrates a unique and crucial role of plasmacytoid dendritic cells (pDCs) and pDC-derived type I interferons (IFNs) in the pathogenesis of mouse coronavirus infection. pDCs controlled the fast replicating mouse hepatitis virus (MHV) through the immediate production of type I IFNs. Recognition of MHV by pDCs was mediated via TLR7 ensuring a swift IFN-a production following encounter with this cytopathic RNA virus. Furthermore, the particular type I IFN response pattern was not restricted to the murine coronavirus, but was also found in infection with the highly cytopathic human severe acute respiratory syndrome (SARS) coronavirus. Taken together, our results suggest that rapid production of type I IFNs by pDCs is essential for the control of potentially lethal coronavirus infections.</div>
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