ADAM-8, a metalloproteinase, drives acute allergen-induced airway inflammation

作者：Paulissen Genevieve; Rocks Natacha; Gueders Maud M; Bedoret Denis; Crahay Celine; Quesada Calvo Florence; Hacha Jonathan; Bekaert Sandrine; Desmet Christophe; Foidart Jean Michel; Bureau Fabrice; Noel Agnes; Cataldo Didier D^*

来源：European Journal of Immunology, 2011, 41(2): 380-391.

DOI：10.1002/eji.200940286

• ADAM
• Asthma
• CCL22
• DC
• Inflammation

Asthma is a complex disease linked to various pathophysiological events including the activity of proteinases. The multifunctional A disintegrin and metalloproteinases (ADAMs) displaying the ability to cleave membrane-bound mediators or cytokines appear to be key mediators in various inflammatory processes. In the present study, we investigated ADAM-8 expression and production in a mouse model of allergen-induced airway inflammation. In allergen-exposed animals, increased expression of ADAM-8 was found in the lung parenchyma and in DC purified from the lungs. The potential role of ADAM-8 in the development of allergen-induced airway inflammation was further investigated by the use of an anti-ADAM-8 antibody and ADAM-8 knockout animals. We observed a decrease in allergen-induced acute inflammation both in BALF and the peribronchial area in anti-ADAM-8 antibody-treated mice and in ADAM-8-deficient mice (ADAM-8(-/-)) after allergen exposure. ADAM-8 depletion led to a significant decrease of the CD11c(+) lung DC. We also report lower levels of CCL11 and CCL22 production in antibody-treated mice and ADAM-8-deficient mice that might be explained by decreased eosinophilic inflammation and lower numbers of DC, respectively. In conclusion, ADAM-8 appears to favour allergen-induced acute airway inflammation by promoting DC recruitment and CCL11 and CCL22 production.

• 出版日期2011-2