title: Neural plasticity and addiction: PI3-kinase and cocaine behavioral sensitization.
abstract: Drug addiction has been linked to protracted functional changes in neural circuits involved in motivation that can lead to drug dependence, craving and relapse. Here we investigated the role of the phosphatidylinositol 3 kinase (PI3K) signal transduction pathway in long-lasting behavioral sensitization to cocaine in rats, an animal model of the long-lasting functional changes induced by repeated drug use. Our results show that PI3K is required for the expression, but not the induction, of behavioral sensitization to cocaine.
authors.affiliation: Department of Neuropharmacology, The Scripps Research Institute, 10550 N. Torrey Pines Rd., CVN12, La Jolla, California 92103, USA.
authors.forename: Emanuela
authors.initials: E
authors.lastname: Izzo
authors.forename: Rémi
authors.initials: R
authors.lastname: Martin-Fardon
authors.forename: George F
authors.initials: GF
authors.lastname: Koob
authors.forename: Friedbert
authors.initials: F
authors.lastname: Weiss
authors.forename: Pietro Paolo
authors.initials: PP
authors.lastname: Sanna
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects / Q000502:physiology; D001921:Brain / Q000187:drug effects* / Q000201:enzymology* / Q000503:physiopathology; D002867:Chromones / Q000494:pharmacology; D003042:Cocaine / Q000494:pharmacology*; D019970:Cocaine-Related Disorders / Q000201:enzymology* / Q000503:physiopathology; D004195:Disease Models, Animal; D004791:Enzyme Inhibitors / Q000494:pharmacology; D008297:Male; D009025:Morpholines / Q000494:pharmacology; D009043:Motor Activity / Q000187:drug effects / Q000502:physiology; D009473:Neuronal Plasticity / Q000187:drug effects* / Q000502:physiology; D009474:Neurons / Q000187:drug effects* / Q000201:enzymology*; D019869:Phosphatidylinositol 3-Kinases / Q000187:drug effects* / Q000378:metabolism; D051381:Rats; D017208:Rats, Wistar; D015398:Signal Transduction / Q000187:drug effects / Q000502:physiology
chemical_list: D002867:Chromones; D004791:Enzyme Inhibitors; D009025:Morpholines; C085911:2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one; D019869:Phosphatidylinositol 3-Kinases; D003042:Cocaine