Journal
MOLECULAR IMMUNOLOGY
Volume 66, Issue 1, Pages 97-105Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.molimm.2014.12.005
Keywords
Animal model; Asthma; Immunology; Horse; Airway remodeling; Inflammation
Categories
Funding
- Canadian Institutes of Health [102751]
- FRQNT (Fonds de Recherche du Quebec - Nature et Technologies)
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Animal models have been studied to unravel etiological, immunopathological, and genetic attributes leading to asthma. However, while experiments in which the disease is artificially induced have helped discovering biological and molecular pathways leading to allergic airway inflammation, their contribution to the understanding of the causality of the disease has been more limited. Horses naturally suffer from an asthma-like condition called heaves which presents sticking similarities with human asthma. It is characterized by reversible airway obstruction, airway neutrophilic inflammation, and a predominant Th2 immune response. This model allows one to investigate the role of neutrophils in asthma, which remains contentious, the regulation of chronic neutrophilic inflammation, and their possible implication in pulmonary allergic responses. Furthermore, the pulmonary remodeling features in heaves closely resemble those of human asthma, which makes this model unique to investigate the kinetics, reversibility, as well as the physiological consequences of tissue remodeling. In conclusion, heaves and asthma share common clinical presentation and also important immunological and tissue remodeling features. This makes heaves an ideal model for the discovery of novel pathways implicated in the asthmatic inflammation and associated tissue remodeling. (C) 2014 Elsevier Ltd. All rights reserved.
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