title: Role of BDNF and GDNF in drug reward and relapse: a review.
abstract: Brain-derived neurotrophic factor (BDNF) and glial cell line-derived neurotrophic factor (GDNF) are neurotrophic factors that are critical for the growth, survival, and differentiation of developing neurons. These neurotrophic factors also play important roles in the survival and function of adult neurons, learning and memory, and synaptic plasticity. Since the mid-1990s, investigators have studied the role of BDNF and GDNF in the behavioral effects of abused drugs and in the neuroadaptations induced by repeated exposure to drugs in the mesocorticolimbic dopamine system. Here, we review rodent studies on the role of BDNF and GDNF in drug reward, as assessed in the drug self-administration and the conditioned place preference procedures, and in drug relapse, as assessed in extinction and reinstatement procedures. Our main conclusion is that whether BDNF or GDNF would facilitate or inhibit drug-taking behaviors depends on the drug type, the brain site, the addiction phase (initiation, maintenance, or abstinence/relapse), and the time interval between site-specific BDNF or GDNF injections and the reward- and relapse-related behavioral assessments.
authors.affiliation: Center for the Clinical Trials Network, NIDA, NIH, Bethesda, MD, USA.
authors.forename: Udi E
authors.initials: UE
authors.lastname: Ghitza
authors.forename: Haifeng
authors.initials: H
authors.lastname: Zhai
authors.forename: Ping
authors.initials: P
authors.lastname: Wu
authors.forename: Mikko
authors.initials: M
authors.lastname: Airavaara
authors.forename: Yavin
authors.initials: Y
authors.lastname: Shaham
authors.forename: Lin
authors.initials: L
authors.lastname: Lu
mesh_terms: D000818:Animals; D019208:Brain-Derived Neurotrophic Factor / Q000494:pharmacology / Q000502:physiology*; D002755:Choice Behavior / Q000187:drug effects; D004195:Disease Models, Animal; D005108:Extinction, Psychological / Q000187:drug effects; D051100:Glial Cell Line-Derived Neurotrophic Factor / Q000494:pharmacology / Q000502:physiology*; D006801:Humans; D013287:Illicit Drugs / Q000494:pharmacology*; D012008:Recurrence; D012201:Reward; D012646:Self Administration; D019966:Substance-Related Disorders / Q000503:physiopathology* / Q000517:prevention & control*
chemical_list: D019208:Brain-Derived Neurotrophic Factor; D051100:Glial Cell Line-Derived Neurotrophic Factor; D013287:Illicit Drugs