Sensitization of the adenylyl cyclase system in cloned kappa-opioid receptor-transfected cells following sustained agonist treatment: A chimeric study using G protein alpha(i)2/alpha(q) subunits.

Abstract excerpt

Chronic and/or sustained opioid treatment has been shown to result in development of sensitization of the adenylyl cyclase (AC) system or cAMP overshoot. In this study, we investigated the molecular mechanism responsible for sensitization of the AC system using CHO cells co-expressing cloned kappa-opioid receptor and some chimeric G protein alpha(i2)/alpha(q) subunits. In CHO cells co-expressing the kappa-opioid...

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