Dumm RE, et al. Non-lytic clearance of influenza B virus from infected cells preserves epithelial barrier function. Nat Commun. 2019 Feb 15;10(1):779
Influenza B virus (IBV) is an acute, respiratory RNA virus that has been assumed to induce the eventual death of all infected cells. We and others have shown however, that infection with apparently cytopathic viruses does not necessarily lead to cell death; some cells can intrinsically clear the virus and persist in the host long-term. To determine if any cells can survive direct IBV infection, we here generate a recombinant IBV capable of activating a host-cell reporter to permanently label all infected cells. Using this system, we demonstrate that IBV infection leads to the formation of a survivor cell population in the proximal airways that are ciliated-like, but transcriptionally and phenotypically distinct from both actively infected and bystander ciliated cells. We also show that survivor cells are critical to maintain respiratory barrier function. These results highlight a host response pathway that preserves the epithelium to limit the severity of IBV disease.
See Also:
Latest articles in those days:
- Emergence of HPAI H5N6 Clade 2.3.4.4b in Wild Birds: A Case Study From South Korea, 2023 2 days ago
- Age-Dependent Pathogenesis of Influenza A Virus H7N9 Mediated Through PB1-F2-Induced Mitochondrial DNA Release and Activation of cGAS-STING-NF-κB Signaling 2 days ago
- Genotypic Clustering of H5N1 Avian Influenza Viruses in North America Evaluated by Ordination Analysis 2 days ago
- Protocol for enhanced human surveillance of avian influenza A(H5N1) on farms in Canada 2 days ago
- Evolutionary analysis of Hemagglutinin and neuraminidase gene variation in H1N1 swine influenza virus from vaccine intervention in China 2 days ago
[Go Top] [Close Window]