Regulation of type 1 inositol 1,4,5-triphosphate receptor by dopamine receptors in cocaine-induced place conditioning - PubMed (original) (raw)

doi: 10.1002/syn.20997. Epub 2011 Nov 18.

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Regulation of type 1 inositol 1,4,5-triphosphate receptor by dopamine receptors in cocaine-induced place conditioning

Kazuhiro Kurokawa et al. Synapse. 2012 Feb.

Abstract

Recent study shows that type 1 inositol-1,4,5-triphosohate receptors (IP(3) Rs) may be involved in amphetamine-induced conditioned preference, but little is known about its role in psychological dependence on cocaine. This study investigated the role and regulation of IP(3) R-1 in mice with cocaine-induced place preference. The cocaine-induced place preference was dose-dependently inhibited by intracerebroventricular pretreatment with IP(3) R antagonists, 2-aminophenoxyethane-borate (2-APB), and xestospongin C. The levels of IP(3) R-1 in the frontal cortex and nucleus accumbens of cocaine-conditioned mice significantly increased, which was completely abolished by SCH23390 and sulpiride, selective dopamine D1 and D2 receptor antagonists, respectively. These findings suggest that IP(3) R-1-mediated intracellular signaling pathway may play an important role in the development of cocaine-induced place preference and that the expression of IP(3) R-1 is controlled by both dopamine D1 and D2 receptors in the frontal cortex and nucleus accumbens of mice with cocaine-induced place preference.

Copyright © 2011 Wiley Periodicals, Inc.

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