Title : Mechanism of cytokine-induced modulation of beta-adrenoceptor responsiveness in airway smooth muscle.

Pub. Date : 1996 Jun 1

PMID : 8647953






2 Functional Relationships(s)
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1 Relative to controls, IL-1beta- and TNF-alpha-treated TSM, but not IL-2-treated tissues, depicted significant attenuation of their maximal relaxation and sensitivity (i.e., -log dose producing 50% maximal relaxation) to isoproterenol (P < 0.001) and PGE2 (P < 0.05); whereas the relaxation responses to direct stimulation of adenylate cyclase with forskolin were similar in the control and cytokine-treated tissues. Dinoprostone interleukin-1 beta Oryctolagus cuniculus
2 Further, the attenuated relaxation to isoproterenol and PGE2 was ablated in the IL-1beta-treated TSM that were pretreated with either the muscarinic M2-receptor antagonist, methoctramine (10(-6) M), or pertussis toxin (100 ng/ml). Dinoprostone interleukin-1 beta Oryctolagus cuniculus