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Virology 2017 Apr;504:63-72

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

Hillyer P, Mane VP, Chen A, Dos Santos MB, Schramm LM, Shepard RE, Luongo C, Le Nouen C, Huang L, Yan L, Buchholz UJ, Jubin RG, Collins PL, Rabin RL


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-ß, IFN-a1, IFN-a8, and IFN-¿1-3, but only A2 induced IFN-a2, -a14 and -a21. We then show that IFN-a8 and IFN-a14 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.

Category: Journal Article
PubMed ID: #28157546 DOI: 10.1016/j.virol.2017.01.017
PubMed Central ID: #PMC5337151
Includes FDA Authors from Scientific Area(s): Biologics
Entry Created: 2016-02-19 Entry Last Modified: 2018-07-01