Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9017384 | Pulmonary Pharmacology & Therapeutics | 2005 | 7 Pages |
Abstract
We evaluated the effect of a mucoactive agent (â)-(R)-2-amino-3-(3-hydroxypropylthio) propionic acid (fudosteine), on airway inflammation using endotoxin- and antigen-induced models. Time courses of growth related oncogene/cytokine-induced neutrophil chemoattractant-1 (GRO/CINC-1) production, neutrophil migration and goblet cell hyperplasia were examined in endotoxin-induced rat airway inflammation. GRO/CINC-1 in bronchoalveolar lavage fluid (BALF) increased in response to intratracheal instillation of endotoxin and peaked within 4Â h. Neutrophils in BALF and goblet cells on trachea peaked 24 and 96Â h after endotoxin instillation, respectively. Fudosteine significantly inhibited increases in GRO/CINC-1 at 10-100Â mg/kg, and neutrophils and goblet cells at 30 and 100Â mg/kg. These results suggest that inflammatory events including neutrophil chemoattractant production and neutrophil migration play important roles for goblet cell hyperplasia in endotoxin-induced airway inflammation, and fudosteine inhibits goblet cell hyperplasia by inhibiting GRO/CINC-1 production and/or neutrophil migration. Furthermore, fudosteine (100Â mg/kg) inhibited ovalbumin-induced eosinophil infiltration into BALF, suggesting it attenuates asthmatic inflammation.
Related Topics
Health Sciences
Medicine and Dentistry
Pulmonary and Respiratory Medicine
Authors
H. Komatsu, S. Yamaguchi, N. Komorita, K. Goto, S. Takagi, H. Ochi, T. Okumoto,