A short-term mouse model that reproduces the immunopathological features of rhinovirus-induced exacerbation of COPD
Author(s)
Type
Journal Article
Abstract
Viral exacerbations of chronic obstructive pulmonary disease (COPD), commonly caused by rhinovirus (RV) infections, are poorly controlled by current therapies. This is due to a lack of understanding of the underlying immunopathological mechanisms. Human studies have identified a number of key immune responses that are associated with RV-induced exacerbations including neutrophilic inflammation, expression of inflammatory cytokines and deficiencies in innate anti-viral interferon. Animal models of COPD exacerbation are required to determine the contribution of these responses to disease pathogenesis. We aimed to develop a short-term mouse model that reproduced the hallmark features of RV-induced exacerbation of COPD. Evaluation of complex protocols involving multiple dose elastase and lipopolysaccharide (LPS) administration combined with RV1B infection showed suppression rather than enhancement of inflammatory parameters compared with control mice infected with RV1B alone. Therefore, these approaches did not accurately model the enhanced inflammation associated with RV infection in patients with COPD compared with healthy subjects. In contrast, a single elastase treatment followed by RV infection led to heightened airway neutrophilic and lymphocytic inflammation, increased expression of tumour necrosis factor (TNF)-α, C-X-C motif chemokine 10 (CXCL10)/IP-10 (interferon γ-induced protein 10) and CCL5 [chemokine (C-C motif) ligand 5]/RANTES (regulated on activation, normal T-cell expressed and secreted), mucus hypersecretion and preliminary evidence for increased airway hyper-responsiveness compared with mice treated with elastase or RV infection alone. In summary, we have developed a new mouse model of RV-induced COPD exacerbation that mimics many of the inflammatory features of human disease. This model, in conjunction with human models of disease, will provide an essential tool for studying disease mechanisms and allow testing of novel therapies with potential to be translated into clinical practice.
Date Issued
2015-08-01
Date Acceptance
2015-03-18
Citation
Clinical Science, 2015, 129 (3), pp.245-258
ISSN
1470-8736
Publisher
Portland Press
Start Page
245
End Page
258
Journal / Book Title
Clinical Science
Volume
129
Issue
3
Copyright Statement
© 2015 The Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC-BY) (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited.
Sponsor
Wellcome Trust
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000355144700003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
096382/Z/11/Z
Subjects
Science & Technology
Life Sciences & Biomedicine
Medicine, Research & Experimental
Research & Experimental Medicine
chronic obstructive pulmonary disease
exacerbation
inflammation
mouse models
rhinovirus
OBSTRUCTIVE PULMONARY-DISEASE
AIRWAY EPITHELIAL-CELLS
HAEMOPHILUS-INFLUENZAE
INFLAMMATORY RESPONSES
EXPERIMENTAL EMPHYSEMA
INFECTION
MICE
LUNG
EXPRESSION
MUCUS
Publication Status
Published