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Respiratory syncytial virus infection induces a subset of types I and III interferons in human dendritic cells.


ABSTRACT: Whether respiratory syncytial virus (RSV) induces severe infantile pulmonary disease may depend on viral strain and expression of types I and III interferons (IFNs). These IFNs impact disease severity by inducing expression of many anti-viral IFN-stimulated genes (ISGs). To investigate the impact of RSV strain on IFN and ISG expression, we stimulated human monocyte-derived DCs (MDDCs) with either RSV A2 or Line 19 and measured expression of types I and III IFNs and ISGs. At 24h, A2 elicited higher ISG expression than Line 19. Both strains induced MDDCs to express genes for IFN-?, IFN-?1, IFN-?8, and IFN-?1-3, but only A2 induced IFN-?2, -?14 and -?21. We then show that IFN-?8 and IFN-?14 most potently induced MDDCs and bronchial epithelial cells (BECs) to express ISGs. Our findings demonstrate that RSV strain may impact patterns of types I and III IFN expression and the magnitude of the ISG response by DCs and BECs.

SUBMITTER: Hillyer P 

PROVIDER: S-EPMC5337151 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature

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Whether respiratory syncytial virus (RSV) induces severe infantile pulmonary disease may depend on viral strain and expression of types I and III interferons (IFNs). These IFNs impact disease severity by inducing expression of many anti-viral IFN-stimulated genes (ISGs). To investigate the impact of RSV strain on IFN and ISG expression, we stimulated human monocyte-derived DCs (MDDCs) with either RSV A2 or Line 19 and measured expression of types I and III IFNs and ISGs. At 24h, A2 elicited high  ...[more]

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