Chemical Actions and Uses Commons^™

Budesonide Enhances Agonist-Induced Bronchodilation In Human Small Airways By Increasing Camp Production In Airway Smooth Muscle, Cynthia J. Koziol-White, Timothy B. Johnstone, Maia L. Corpuz, Gaoyuan Cao, Sarah Orfanos, Vishal Parikh, Brian Deeney, Omar Tliba, Rennolds S. Ostrom, Ian Dainty, Reynold A. Panettieri Jr.

Pharmacy Faculty Articles and Research

The non-genomic mechanisms by which glucocorticoids modulate β₂ agonist-induced-bronchodilation remain elusive. Our studies aimed to elucidate mechanisms mediating the beneficial effects of glucocorticoids on agonist-induced bronchodilation. Utilizing human precision cut lung slices (hPCLS), we measured bronchodilation to formoterol, prostaglandin E₂ (PGE₂), cholera toxin (CTX) or forskolin in the presence and absence of budesonide. Using cultured human airway smooth muscle (HASM), intracellular cAMP was measured in live cells following exposure to formoterol, PGE₂, or forskolin in the presence or absence of budesonide. We showed that simultaneous budesonide administration amplified formoterol-induced bronchodilation and attenuated agonist-induced phosphorylation …