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Publication : Glutathione peroxidase-2 protects from allergen-induced airway inflammation in mice.

First Author  Dittrich AM Year  2010
Journal  Eur Respir J Volume  35
Issue  5 Pages  1148-54
PubMed ID  19897562 Mgi Jnum  J:181020
Mgi Id  MGI:5308537 Doi  10.1183/09031936.00026108
Citation  Dittrich AM, et al. (2010) Glutathione peroxidase-2 protects from allergen-induced airway inflammation in mice. Eur Respir J 35(5):1148-54
abstractText  The aim of the present study was to identify and validate the biological significance of new genes/proteins involved in the development of allergic airway disease in a murine asthma model. Gene microarrays were used to identify genes with at least a two-fold increase in gene expression in lungs of two separate mouse strains with high and low allergic susceptibility. Validation of mRNA data was obtained by western blotting and immunohistochemistry, followed by functional analysis of one of the identified genes in mice with targeted disruption of specific gene expression. Expression of two antioxidant enzymes, glutathione peroxidase-2 (GPX2) and glutathione S-transferase omega (GSTO) 1-1 was increased in both mouse strains after induction of allergic airway disease and localised in lung epithelial cells. Mice with targeted disruption of the Gpx-2 gene showed significantly enhanced airway inflammation compared to sensitised and challenged wild-type mice. Our data indicate that genes encoding the antioxidants GPX2 and GSTO 1-1 are common inflammatory genes expressed upon induction of allergic airway inflammation, and independently of allergic susceptibility. Furthermore, we provide evidence to illustrate the importance of a single antioxidant enzyme, GPX2, in protection from allergen-induced disease.
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