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2020-5-25 10:40:39

Hu Q, Gilley RP, Dube PH. House dust mite exposure attenuates influenza A infection in a mouse model of pulmonary allergic inflammation. Microb Pathog. 2019 Feb 15.
submited by kickingbird at Feb, 20, 2019 9:20 AM from Microb Pathog. 2019 Feb 15.

Environmental allergens elicit complex immune responses in the lungs that can promote the development of asthma or exacerbate preexisting asthma in susceptible individuals. House dust mites are one of the most common indoor allergens and are a significant driver of allergic disease. Respiratory infections are known factors in acute exacerbations of asthma but the impact of allergen on the pathogen is not well understood. We investigated the pathogenesis of influenza A infection following exposure to house dust mites. Mice exposed to house dust mites lose less weight following infection and had more transcription of interferon-lambda than controls. These data correlated with less transcription of the influenza polymerase acidic gene suggesting diminished viral replication in house dust mite exposed mice. Altogether, these data suggest that exposure to environmental allergens can influence the pathogenesis of influenza infection.

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