PMID: 9188954Jan 1, 1997Paper

Purine derivatives in the study of allergic inflammation in respiratory diseases

Allergy
N CrimiA Mistretta

Abstract

Adenosine, a naturally occurring purine nucleoside, elicits dose-related bronchoconstriction in asthmatic subjects when administered by inhalation and it is recovered in increased amounts from the bronchial lavage fluid of subjects with active asthma when compared to normal controls. Although the mechanism by which adenosine mediates bronchoconstriction in asthmatic subjects is not clear, recent data indicate an important role for mast cell mediator release. We have recently shown that local airway challenge with adenosine in subjects with asthma and rhinitis provokes an increase in the levels of PGD2, histamine and tryptase. However, airway responsiveness and atopic status are the most important determinants of adenosine-induced responses, regardless of any increases in mast cell mediators in airway fluids. New discoveries suggest that the airway response to adenosine may be an index of mast cell priming and therefore may provide a useful tool to further explore the inflammatory processes in allergic asthma and rhinitis. Therefore adenosine provocation may gain increasing acceptance as an additional measure of disease activity in asthma and rhinitis.

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Citations

Nov 22, 2000·The Journal of Trauma·K A DavisK G Proctor
Nov 27, 2019·Pharmacological Reviews·Stacy Gelhaus WendellCheng Zhang
Oct 16, 1999·Clinical and Experimental Allergy : Journal of the British Society for Allergy and Clinical Immunology·G Di LorenzoC Caruso

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