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Airway response to respiratory syncytial virus has incidental antibacterial effects.
- Source :
-
Nature communications [Nat Commun] 2019 May 17; Vol. 10 (1), pp. 2218. Date of Electronic Publication: 2019 May 17. - Publication Year :
- 2019
-
Abstract
- RSV infection is typically associated with secondary bacterial infection. We hypothesise that the local airway immune response to RSV has incidental antibacterial effects. Using coordinated proteomics and metagenomics analysis we simultaneously analysed the microbiota and proteomes of the upper airway and determined direct antibacterial activity in airway secretions of RSV-infected children. Here, we report that the airway abundance of Streptococcus was higher in samples collected at the time of RSV infection compared with samples collected one month later. RSV infection is associated with neutrophil influx into the airway and degranulation and is marked by overexpression of proteins with known antibacterial activity including BPI, EPX, MPO and AZU1. Airway secretions of children infected with RSV, have significantly greater antibacterial activity compared to RSV-negative controls. This RSV-associated, neutrophil-mediated antibacterial response in the airway appears to act as a regulatory mechanism that modulates bacterial growth in the airways of RSV-infected children.
- Subjects :
- Bacterial Infections microbiology
Cell Degranulation immunology
Child, Preschool
Humans
Infant
Infant, Newborn
Kenya
Metagenomics methods
Microbiota immunology
Proteomics methods
Respiratory Mucosa cytology
Respiratory Mucosa microbiology
Respiratory Syncytial Virus Infections virology
Respiratory Syncytial Virus, Human isolation & purification
Streptococcus immunology
Streptococcus isolation & purification
Bacterial Infections immunology
Neutrophils immunology
Respiratory Mucosa immunology
Respiratory Syncytial Virus Infections immunology
Respiratory Syncytial Virus, Human immunology
Subjects
Details
- Language :
- English
- ISSN :
- 2041-1723
- Volume :
- 10
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Nature communications
- Publication Type :
- Academic Journal
- Accession number :
- 31101811
- Full Text :
- https://doi.org/10.1038/s41467-019-10222-z