Scientific article
Open access

Interferon-dependent and respiratory virus-specific interference in dual infections of airway epithelia

Published inScientific Reports, vol. 10, no. 1, 10246
Publication date2020

Many respiratory viruses cocirculate in the population and multiple infections are commonly reported. The clinical impact of coinfection is unclear and may vary depending on the viral couples involved. Using three-dimensional reconstituted human airway epithelia and clinical viral strains, we investigated the interaction between influenza virus (Flu), respiratory syncytial virus (RSV) and rhinovirus (RV). We showed that Flu and RSV interfere with RV replication, whereas RV does not interfere with either of these viruses. We then experimentally demonstrated that, when present, the interference is not related to a block of viral entry but rather to type I and type III interferon (IFN), the front-line antiviral defense of the respiratory mucosa. Consistent with this observation, we highlighted the differential sensitivity of each virus to IFNs, with RV being the only virus significantly inhibited by IFN-λ and the most sensitive to IFN-α. Finally, as type III IFN is of therapeutic interest due to its low proinflammatory profile, we also assessed and confirmed an inhibitory effect of IFN-λ in the context of persistent RV infections. The present work provides mechanistic clues concerning innate immunity involvement during respiratory virus interactions and confirms that IFN-λ is a promising candidate in the treatment of RV infections.

Citation (ISO format)
ESSAIDI, Manel et al. Interferon-dependent and respiratory virus-specific interference in dual infections of airway epithelia. In: Scientific Reports, 2020, vol. 10, n° 1, p. 10246. doi: 10.1038/s41598-020-66748-6
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ISSN of the journal2045-2322

Technical informations

Creation08/03/2020 4:30:00 PM
First validation08/03/2020 4:30:00 PM
Update time03/15/2023 10:26:16 PM
Status update03/15/2023 10:26:15 PM
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