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Open AccessArticle

Nasal Cytokine Profiles of Patients Hospitalised with Respiratory Wheeze Associated with Rhinovirus C

1
PathWest Laboratory Medicine WA, Perth 6009, Australia
2
Faculty of Health and Medical Sciences, University of Western Australia, Perth 6009, Australia
3
Telethon Kids Institute, Perth 6009, Australia
*
Authors to whom correspondence should be addressed.
Viruses 2019, 11(11), 1038; https://doi.org/10.3390/v11111038
Received: 14 October 2019 / Accepted: 16 October 2019 / Published: 7 November 2019
(This article belongs to the Special Issue Human Picornaviruses)
Background: Rhinovirus C is an important pathogen of asthmatic and non-asthmatic children hospitalised with episodic wheeze. Previous studies on other respiratory viruses have shown that several host cytokines correlate with duration of hospitalisation, but this has yet to be investigated in children with RV-C infection. We determined the nasal cytokine profiles of these children and investigated their relationship with RV-C load and clinical outcome. Flocked nasal swabs were collected from children aged 24–72 months presenting to the Emergency Department at Princess Margaret Hospital with a clinical diagnosis of acute wheeze and an acute upper respiratory tract viral infection. RV-C load was determined by quantitative RT-PCR and cytokine profiles were characterised by a commercial human cytokine 34-plex panel. RV-C was the most commonly detected virus in pre-school-aged children hospitalised with an episodic wheeze. RV-C load did not significantly differ between asthmatic and non-asthmatic patients. Both groups showed a Th2-based cytokine profile. However, Th17 response cytokines IL-17 and IL-1β were only elevated in RV-C-infected children with pre-existing asthma. Neither RV-C load nor any specific cytokines were associated illness severity in this study. Medically attended RV-C-induced wheeze is characterised by a Th2 inflammatory pattern, independent of viral load. Any therapeutic interventions should be aimed at modulating the host response following infection. View Full-Text
Keywords: rhinoviruses; infection; immunity; wheeze; viral load rhinoviruses; infection; immunity; wheeze; viral load
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MDPI and ACS Style

Sikazwe, C.T.; Laing, I.A.; Imrie, A.; Smith, D.W. Nasal Cytokine Profiles of Patients Hospitalised with Respiratory Wheeze Associated with Rhinovirus C. Viruses 2019, 11, 1038.

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