PMID- 18345022 OWN - NLM STAT- MEDLINE DCOM- 20080619 LR - 20240316 IS - 0007-1188 (Print) IS - 1476-5381 (Electronic) IS - 0007-1188 (Linking) VI - 154 IP - 2 DP - 2008 May TI - Neuroplasticity in the mesolimbic dopamine system and cocaine addiction. PG - 327-42 LID - 10.1038/bjp.2008.77 [doi] AB - The main characteristics of cocaine addiction are compulsive drug use despite adverse consequences and high rates of relapse during periods of abstinence. A current popular hypothesis is that compulsive cocaine use and cocaine relapse is due to drug-induced neuroadaptations in reward-related learning and memory processes, which cause hypersensitivity to cocaine-associated cues, impulsive decision making and abnormal habit-like learned behaviours that are insensitive to adverse consequences. Here, we review results from studies on the effect of cocaine exposure on selected signalling cascades, growth factors and physiological processes previously implicated in neuroplasticity underlying normal learning and memory. These include the extracellular signal-regulated kinase (ERK) signalling pathway, brain-derived neurotrophic factor (BDNF), glutamate transmission, and synaptic plasticity (primarily in the form of long-term potentiation and depression, LTP and LTD). We also discuss the degree to which these cocaine-induced neuroplasticity changes in the mesolimbic dopamine system mediate cocaine psychomotor sensitization and cocaine-seeking behaviours, as assessed in animal models of drug addiction. Finally, we speculate on how these factors may interact to initiate and sustain cocaine psychomotor sensitization and cocaine seeking. FAU - Thomas, M J AU - Thomas MJ AD - Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA. tmhomas@umn.edu FAU - Kalivas, P W AU - Kalivas PW FAU - Shaham, Y AU - Shaham Y LA - eng GR - P50 DA015369/DA/NIDA NIH HHS/United States GR - R01 DA019666/DA/NIDA NIH HHS/United States GR - DA12513/DA/NIDA NIH HHS/United States GR - R01 DA003906/DA/NIDA NIH HHS/United States GR - DA019666/DA/NIDA NIH HHS/United States GR - ImNIH/Intramural NIH HHS/United States GR - R37 DA003906/DA/NIDA NIH HHS/United States GR - DA015369/DA/NIDA NIH HHS/United States GR - DA03906/DA/NIDA NIH HHS/United States GR - R01 DA012513/DA/NIDA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, N.I.H., Intramural PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20080317 PL - England TA - Br J Pharmacol JT - British journal of pharmacology JID - 7502536 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 3KX376GY7L (Glutamic Acid) RN - EC 2.7.11.24 (Extracellular Signal-Regulated MAP Kinases) RN - VTD58H1Z2X (Dopamine) SB - IM CIN - Br J Pharmacol. 2008 May;154(2):259-60. PMID: 18414384 MH - Animals MH - Behavior, Addictive/drug therapy/*metabolism/physiopathology MH - Behavior, Animal MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cocaine-Related Disorders/drug therapy/*metabolism/physiopathology/psychology MH - Dopamine/*metabolism MH - Extracellular Signal-Regulated MAP Kinases/metabolism MH - Glutamic Acid/metabolism MH - Humans MH - Limbic System/enzymology/*metabolism MH - Models, Animal MH - Neural Pathways/metabolism/physiopathology MH - *Neuronal Plasticity MH - Psychomotor Performance MH - Recurrence MH - *Synaptic Transmission PMC - PMC2442442 EDAT- 2008/03/18 09:00 MHDA- 2008/06/20 09:00 PMCR- 2009/05/01 CRDT- 2008/03/18 09:00 PHST- 2008/03/18 09:00 [pubmed] PHST- 2008/06/20 09:00 [medline] PHST- 2008/03/18 09:00 [entrez] PHST- 2009/05/01 00:00 [pmc-release] AID - bjp200877 [pii] AID - 10.1038/bjp.2008.77 [doi] PST - ppublish SO - Br J Pharmacol. 2008 May;154(2):327-42. doi: 10.1038/bjp.2008.77. Epub 2008 Mar 17.