PMID- 22741574 OWN - NLM STAT- MEDLINE DCOM- 20131029 LR - 20141120 IS - 1369-1600 (Electronic) IS - 1355-6215 (Linking) VI - 18 IP - 4 DP - 2013 Jul TI - Substituting a long-acting dopamine uptake inhibitor for cocaine prevents relapse to cocaine seeking. PG - 633-43 LID - 10.1111/j.1369-1600.2012.00458.x [doi] AB - The treatment of cocaine addiction remains a challenge. The dopamine replacement approach in cocaine addiction involves the use of a competing dopaminergic agonist that might suppress withdrawal and drug craving in abstinent individuals. Although it has long been postulated that such an approach may be therapeutically successful, preclinical or clinical evidence showing its effectiveness to prevent relapse is scant. We used in rats a procedure that involved substitution of the N-substituted benztropine analog 3alpha-[bis(4'-fluorophenyl)methoxy]-tropane (AHN-1055), a long-acting dopamine uptake inhibitor (DUI), for cocaine. Maintenance treatment was self-administered. After extinction, reinstatement of drug seeking was induced by cocaine priming. We measured the contents of brain-derived neurotrophic factor (BDNF), c-Fos and Fas-associated death domain (FADD) proteins in the medial prefrontal cortex (mPFC) following reinstatement. DUI, but not amphetamine, substitution led to extinction of active lever presses, as did saline substitution. DUI substitution significantly reduced cocaine-induced reinstatement of drug-seeking behavior, which was strongly elicited after saline substitution. Rats passively yoked to DUI also showed reduced cocaine-primed reinstatement. Reductions in drug seeking during reinstatement were matched by downward shifts in the contents of BDNF, c-Fos and FADD proteins in the mPFC, which were elevated in relapsing rats. These data indicate that DUI substitution not only leads to extinction of self-administration behavior but also prevents reinstatement of drug seeking induced by cocaine re-exposure. Thus, DUI substitution therapy using compounds with low abuse potential, even if received passively in the context previously paired with drug taking, may provide an effective treatment for stimulant addiction. CI - (c) 2012 The Authors, Addiction Biology (c) 2012 Society for the Study of Addiction. FAU - Velazquez-Sanchez, Clara AU - Velazquez-Sanchez C AD - Behavioural Neuroscience, Department of Psychology, University of Canterbury, New Zealand. FAU - Ferragud, Antonio AU - Ferragud A FAU - Ramos-Miguel, Alfredo AU - Ramos-Miguel A FAU - Garcia-Sevilla, Jesus A AU - Garcia-Sevilla JA FAU - Canales, Juan J AU - Canales JJ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120628 PL - United States TA - Addict Biol JT - Addiction biology JID - 9604935 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Dopamine Uptake Inhibitors) RN - 0 (Fas-Associated Death Domain Protein) RN - 0 (N-methyl-3-(bis(4'-fluorophenyl)methoxy)tropane) RN - 0 (Proto-Oncogene Proteins c-fos) RN - 1NHL2J4X8K (Benztropine) RN - I5Y540LHVR (Cocaine) SB - IM MH - Analysis of Variance MH - Animals MH - Behavior, Addictive/drug therapy/metabolism MH - Benztropine/administration & dosage/*analogs & derivatives/pharmacology/therapeutic use MH - Blotting, Western MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cocaine/*administration & dosage/pharmacology MH - Cocaine-Related Disorders/*drug therapy/metabolism MH - Dopamine Uptake Inhibitors/administration & dosage/pharmacology/*therapeutic use MH - Dose-Response Relationship, Drug MH - Drug-Seeking Behavior/*drug effects MH - Extinction, Psychological/drug effects MH - Fas-Associated Death Domain Protein/metabolism MH - Humans MH - Male MH - Prefrontal Cortex/drug effects/*metabolism MH - Proto-Oncogene Proteins c-fos/metabolism MH - Rats MH - Rats, Long-Evans MH - Reinforcement Schedule MH - Secondary Prevention MH - Self Administration MH - Substance Withdrawal Syndrome/drug therapy EDAT- 2012/06/30 06:00 MHDA- 2013/10/30 06:00 CRDT- 2012/06/30 06:00 PHST- 2012/06/30 06:00 [entrez] PHST- 2012/06/30 06:00 [pubmed] PHST- 2013/10/30 06:00 [medline] AID - 10.1111/j.1369-1600.2012.00458.x [doi] PST - ppublish SO - Addict Biol. 2013 Jul;18(4):633-43. doi: 10.1111/j.1369-1600.2012.00458.x. Epub 2012 Jun 28.