Selective inhibition of cocaine-seeking behaviour
by a partial dopamine D3 receptor agonist

Pilla M, Perachon S, Sautel F, Garrido F, Mann A,
Wermuth CG, Schwartz JC, Everitt BJ, Sokoloff P.
Department of Experimental Psychology,
University of Cambridge, UK.USA.
Nature1999 Jul 22;400(6742):371-5


Environmental stimuli that are reliably associated with the effects of many abused drugs, especially stimulants such as cocaine, can produce craving and relapse in abstinent human substance abusers. In animals, such cues can induce and maintain drug-seeking behaviour and also reinstate drug-seeking after extinction. Reducing the motivational effects of drug-related cues might therefore be useful in the treatment of addiction. Converging pharmacological, human post-mortem and genetic studies implicate the dopamine D3 receptor in drug addiction. Here we have designed BP 897, the first D3-receptor-selective agonist, as assessed in vitro with recombinant receptors and in vivo with mice bearing disrupted D3-receptor genes. BP 897 is a partial agonist in vitro and acts in vivo as either an agonist or an antagonist. We show that BP 897 inhibits cocaine-seeking behaviour that depends upon the presentation of drug-associated cues, without having any intrinsic, primary rewarding effects. Our data indicate that compounds like BP 897 could be used for reducing the drug craving and vulnerability to relapse that are elicited by drug-associated environmental stimuli.

BP 897
Oral cocaine
Cocaine hotspots
Dopaminergic flies?
Dopaminergic agents
The coke-craving brain
Monoamines, cocaine and rats
Freebasing flies go hyperkinetic
Dopamine D3, sensitization and psychosis
GBR12909: a dopaminergic antidepressant?
BP 897, dopamine D3 receptors and cocaine
BP 897, a selective dopamine D(3) receptor ligand

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