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Article Dans Une Revue Microorganisms Année : 2020

Transcriptional profiling of immune and inflammatory responses in the context of SARS-CoV-2 fungal superinfection in a human airway epithelial model

Résumé

Superinfections of bacterial/fungal origin are known to affect the course and severity of respiratory viral infections. An increasing number of evidence indicate a relatively high prevalence of superinfections associated with COVID-19, including invasive aspergillosis, but the underlying mechanisms remain to be characterized. In the present study, to better understand the biological impact of superinfection we sought to determine and compare the host transcriptional response to SARS-CoV-2 versus Aspergillus superinfection, using a model of reconstituted humain airway epithelium. Our analyses reveal that both simple infection and superinfection induce a strong deregulation of core components of innate immune and inflammatory responses, with a stronger response to superinfection in the bronchial epithelial model compared to its nasal counterpart. Our results also highlight unique transcriptional footprints of SARS-CoV-2 Aspergillus superinfection, such as an imbalanced type I/type III IFN, and an induction of several monocyte- and neutrophil associated chemokines, that could be useful for the understanding of Aspergillus -associated COVID-19 and but also management of severe forms of aspergillosis in this specific context.

Domaines

Virologie
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Dates et versions

hal-02988343 , version 1 (04-11-2020)

Identifiants

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Claire Nicolas De Lamballerie, Andrés Pizzorno, Julien Fouret, Lea Szpiro, Blandine Padey, et al.. Transcriptional profiling of immune and inflammatory responses in the context of SARS-CoV-2 fungal superinfection in a human airway epithelial model. Microorganisms, 2020, ⟨10.1101/2020.05.19.103630⟩. ⟨hal-02988343⟩
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