Modulates the Antiviral Response of Bronchial Epithelial Cells

Overview

Journal Front Immunol

Specialty Allergy & Immunology

Date 2020 Mar 3

PMID 32117250

Citations 12

Authors

Michael Sorensen

Julia Kantorek

Lauren Byrnes

Sebastien Boutin

Marcus A Mall

Felix Lasitschka

Heike Zabeck

Dao Nguyen

Alexander H Dalpke

Affiliations

Soon will be listed here.

Abstract

Cystic fibrosis (CF) patients frequently acquire infections that have been associated with a bad prognosis and an increased rate of pulmonary exacerbations. Respiratory viruses can cause exacerbations in chronic pulmonary diseases including COPD or asthma and have been suggested to contribute to exacerbations also in CF. In this study we investigated a possible link between infection and susceptibility to respiratory viruses. We show that is able to block the antiviral response of airway epithelial cells thereby promoting virus infection and spread. Mechanistically, secretes the protease AprA in a LasR dependent manner, which is able of directly degrading epithelial-derived IFNλ resulting in inhibition of IFN signaling. In addition, we correlate the virus infection status of CF patients with the ability of patients' isolates to degrade IFNλ. In line with this, the infection status of CF patients correlated significantly with the amount of respiratory viruses in sputum. Our data suggest that the interplay between and respiratory virus infections might partially explain the association of increased rates of pulmonary exacerbations and infections in CF patients.

Citing Articles

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