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Increased sensitivity of SARS-coronavirus to a combination of human type I and type II interferons

Identifieur interne : 005F79 ( Main/Merge ); précédent : 005F78; suivant : 005F80

Increased sensitivity of SARS-coronavirus to a combination of human type I and type II interferons

Auteurs : Carolina Scagnolari [Italie] ; Elisa Vicenzi [Italie] ; Francesca Bellomi [Italie] ; Maria Giuseppina Stillitano [Italie] ; Debora Pinna [Italie] ; Guido Poli [Italie] ; Massimo Clementi [Italie] ; Ferdinando Dianzani [Italie] ; Guido Antonelli [Italie]

Source :

RBID : Pascal:05-0076971

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English descriptors

Abstract

There is currently an urgent need to identify effective antiviral agents that will prevent and treat severe acute respiratory syndrome coronavirus (SARS-CoV) infection. In this study, we have investigated and compared the antiviral effect of different interferons (IFNs) on SARS-CoV replication in the epithelial kidney monkey Vero cell line. The results showed that SARS-CoV grown in Vero cells is moderately sensitive to IFN-β and only weakly sensitive to IFN-a and IFN-y, in comparison to other IFN-sensitive viruses, such as those for encephalomyocarditis, vesicular stomatitis and Newcastle disease. Simultaneous incubation of Vero cells with IFN-β and IFN-y indicated that they may act synergistically against SARS-CoV replication. The IFN-induced MxA protein was detected in the IFN-treated Vero cells. The data, however, suggest that the antiviral activity of IFN against SARS-CoV virus is independent of MxA expression.

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Pascal:05-0076971

Le document en format XML

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<div type="abstract" xml:lang="en">There is currently an urgent need to identify effective antiviral agents that will prevent and treat severe acute respiratory syndrome coronavirus (SARS-CoV) infection. In this study, we have investigated and compared the antiviral effect of different interferons (IFNs) on SARS-CoV replication in the epithelial kidney monkey Vero cell line. The results showed that SARS-CoV grown in Vero cells is moderately sensitive to IFN-β and only weakly sensitive to IFN-a and IFN-y, in comparison to other IFN-sensitive viruses, such as those for encephalomyocarditis, vesicular stomatitis and Newcastle disease. Simultaneous incubation of Vero cells with IFN-β and IFN-y indicated that they may act synergistically against SARS-CoV replication. The IFN-induced MxA protein was detected in the IFN-treated Vero cells. The data, however, suggest that the antiviral activity of IFN against SARS-CoV virus is independent of MxA expression.</div>
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