PMID- 26506052 OWN - NLM STAT- MEDLINE DCOM- 20160719 LR - 20181113 IS - 2158-3188 (Electronic) IS - 2158-3188 (Linking) VI - 5 IP - 10 DP - 2015 Oct 27 TI - BDNF-TrkB signaling in the nucleus accumbens shell of mice has key role in methamphetamine withdrawal symptoms. PG - e666 LID - 10.1038/tp.2015.157 [doi] AB - Depression is a core symptom of methamphetamine (METH) withdrawal during the first several weeks of abstinence. However, the precise mechanisms underlying METH withdrawal symptoms remain unknown. Brain-derived neurotrophic factor (BDNF) and its specific receptor, tropomyosin-related kinase (TrkB), have a role the in pathophysiology of depression. In this study, we examined the role of BDNF-TrkB signaling in different brain regions of male mice with METH withdrawal symptoms. Repeated METH (3 mg kg(-1) per day for 5 days) administration to mice caused a long-lasting depression-like behavior including anhedonia. Western blot analysis showed that BDNF levels in the nucleus accumbens (NAc) of METH-treated mice were significantly higher than those of control mice whereas BDNF levels in other regions, including the prefrontal cortex and hippocampus, were not altered. METH-induced depression-like behavior, behavioral sensitization and dendritic changes in the NAc shell were improved by subsequent subchronic administration of TrkB antagonist ANA-12 (0.5 mg kg(-1) per day for 14 days), but not TrkB agonist 7,8-dihydroxyflavone (10 mg kg(-1) per day for 14 days). In vivo microdialysis showed that METH (1 mg kg(-1))-induced dopamine release in NAc shell of METH-treated mice was attenuated after subsequent subchronic ANA-12 administration. Interestingly, a single bilateral infusion of ANA-12 into the NAc shell, but not NAc core, showed a rapid and long-lasting therapeutic effect. However, ketamine and paroxetine had no effect. These findings suggest that increased BDNF-TrkB signaling in the NAc shell has an important role in the behavioral abnormalities after withdrawal from repeated METH administration, and that TrkB antagonists are potential therapeutic drugs for withdrawal symptoms in METH abusers. FAU - Ren, Q AU - Ren Q AUID- ORCID: 0000-0003-2982-8824 AD - Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan. FAU - Ma, M AU - Ma M AD - Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan. FAU - Yang, C AU - Yang C AD - Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan. FAU - Zhang, J-C AU - Zhang JC AD - Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan. FAU - Yao, W AU - Yao W AD - Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan. FAU - Hashimoto, K AU - Hashimoto K AD - Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20151027 PL - United States TA - Transl Psychiatry JT - Translational psychiatry JID - 101562664 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 44RAL3456C (Methamphetamine) RN - 7171WSG8A2 (BDNF protein, human) RN - EC 2.7.- (Protein Kinases) RN - EC 2.7.11.28 (tropomyosin kinase) SB - IM MH - Amphetamine-Related Disorders/*metabolism MH - Animals MH - Behavior, Animal/drug effects MH - Blotting, Western MH - Brain-Derived Neurotrophic Factor/genetics/*metabolism MH - Disease Models, Animal MH - Male MH - Methamphetamine/metabolism MH - Mice MH - Mice, Inbred C57BL MH - Nucleus Accumbens/drug effects/*metabolism MH - Protein Kinases/genetics/metabolism MH - Signal Transduction/*physiology MH - Substance Withdrawal Syndrome/*metabolism PMC - PMC4930133 COIS- KH is an inventor on a field patent application (now pending) on 'The use of TrkB antagonists in the treatment of substance abuse' by Chiba University. KH has served as a scientific consultant to Astellas, Dainippon-Sumitomo and Taisho, and he has also received research support from Abbvie, Dainippon-Sumitomo, Mochida, Otsuka and Taisho. The remaining authors declare no conflicts of interest. EDAT- 2015/10/28 06:00 MHDA- 2016/07/20 06:00 PMCR- 2015/10/01 CRDT- 2015/10/28 06:00 PHST- 2015/06/25 00:00 [received] PHST- 2015/08/06 00:00 [revised] PHST- 2015/09/06 00:00 [accepted] PHST- 2015/10/28 06:00 [entrez] PHST- 2015/10/28 06:00 [pubmed] PHST- 2016/07/20 06:00 [medline] PHST- 2015/10/01 00:00 [pmc-release] AID - tp2015157 [pii] AID - 10.1038/tp.2015.157 [doi] PST - epublish SO - Transl Psychiatry. 2015 Oct 27;5(10):e666. doi: 10.1038/tp.2015.157.