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JOURNAL ARTICLE

Protease inhibitor reduces airway response and underlying inflammation in cockroach allergen-induced murine model

Sanjay Saw, Naveen Arora
Inflammation 2015, 38 (2): 672-82
25052477
Protease(s) enhances airway inflammation and allergic cascade. In the present study, effect of a serine protease inhibitor was evaluated in mouse model of airway disease. Mice were sensitized with cockroach extract (CE) or Per a 10 and treated with 4-(2-aminoethyl) benzenesulfonyl fluoride hydrochloride (AEBSF) 1 h before or after challenge to measure airway response. Mice were euthanized to collect bronchoalveolar lavage fluid (BALF), blood, and lung to evaluate inflammation. AEBSF treatment significantly reduced the AHR in allergen-challenged mice in dose-dependent manner (p≤ 0.01). IgE (p≤0.05) and Th2 cytokines (p≤0.05) were significantly reduced in treated mice. AEBSF treatment lowered total cell (p≤0.05), eosinophil (p≤0.05), and neutrophil (p≤0.05) in BALF and lung tissue. Oxidative stress parameters were impaired on treatment in allergen-challenged mice (p≤0.05). AEBSF had therapeutic effect in allergen-induced airway resistance and underling inflammation and had potential for combination or as add-on therapy for respiratory diseases.

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