PMID- 22237931 OWN - NLM STAT- MEDLINE DCOM- 20120928 LR - 20240323 IS - 1096-9861 (Electronic) IS - 0021-9967 (Print) IS - 0021-9967 (Linking) VI - 520 IP - 11 DP - 2012 Aug 1 TI - (+/-)3,4-methylenedioxymethamphetamine ("ecstasy") treatment modulates expression of neurotrophins and their receptors in multiple regions of adult rat brain. PG - 2459-74 LID - 10.1002/cne.23048 [doi] AB - (+/-)3,4-Methylenedioxymethamphetamine (MDMA), a widely used drug of abuse, rapidly reduces serotonin levels in the brain when ingested or administered in sufficient quantities, resulting in deficits in complex route-based learning, spatial learning, and reference memory. Neurotrophins are important for survival and preservation of neurons in the adult brain, including serotonergic neurons. In this study, we examined the effects of MDMA on the expression of brain-derived neurotrophic factor (BDNF) and neurotrophin-3 (NT-3) and their respective high-affinity receptors, tropomyosin receptor kinase (trk)B and trkC, in multiple regions of the rat brain. A serotonergic-depleting dose of MDMA (10 mg/kg x 4 at 2-hour intervals on a single day) was administered to adult Sprague-Dawley rats, and brains were examined 1, 7, or 24 hours after the last dose. Messenger RNA levels of BDNF, NT-3, trkB, and trkC were analyzed by using in situ hybridization with cRNA probes. The prefrontal cortex was particularly vulnerable to MDMA-induced alterations in that BDNF, NT-3, trkB, and trkC mRNAs were all upregulated at multiple time points. MDMA-treated animals had increased BDNF expression in the frontal, parietal, piriform, and entorhinal cortices, increased NT-3 expression in the anterior cingulate cortex, and elevated trkC in the entorhinal cortex. In the nigrostriatal system, BDNF expression was upregulated in the substantia nigra pars compacta, and trkB was elevated in the striatum in MDMA-treated animals. Both neurotrophins and trkB were differentially regulated in several regions of the hippocampal formation. These findings suggest a possible role for neurotrophin signaling in the learning and memory deficits seen following MDMA treatment. CI - Copyright (c) 2012 Wiley Periodicals, Inc. FAU - Hemmerle, Ann M AU - Hemmerle AM AD - Neuroscience Graduate Program, University of Cincinnati, Cincinnati, Ohio 45267, USA. FAU - Dickerson, Jonathan W AU - Dickerson JW FAU - Herring, Nicole R AU - Herring NR FAU - Schaefer, Tori L AU - Schaefer TL FAU - Vorhees, Charles V AU - Vorhees CV FAU - Williams, Michael T AU - Williams MT FAU - Seroogy, Kim B AU - Seroogy KB LA - eng GR - NS39128/NS/NINDS NIH HHS/United States GR - DA14269/DA/NIDA NIH HHS/United States GR - K01 DA014269/DA/NIDA NIH HHS/United States GR - R01 DA021394/DA/NIDA NIH HHS/United States GR - DA021394/DA/NIDA NIH HHS/United States GR - R01 NS039128/NS/NINDS NIH HHS/United States GR - T32 ES007051/ES/NIEHS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PL - United States TA - J Comp Neurol JT - The Journal of comparative neurology JID - 0406041 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Hallucinogens) RN - 0 (Neurotrophin 3) RN - 0 (RNA, Messenger) RN - 0 (Serotonin Agents) RN - EC 1.14.16.2 (Tyrosine 3-Monooxygenase) RN - EC 2.7.10.1 (Receptor, trkB) RN - EC 2.7.10.1 (Receptor, trkC) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) RN - W980KJ009P (Corticosterone) SB - IM MH - Animals MH - Body Temperature/drug effects MH - Brain-Derived Neurotrophic Factor/*drug effects/genetics/metabolism MH - Cerebral Cortex/*drug effects/metabolism MH - Corticosterone/blood MH - Hallucinogens/*pharmacology MH - Hippocampus/drug effects/metabolism MH - Male MH - N-Methyl-3,4-methylenedioxyamphetamine/*pharmacology MH - Neostriatum/drug effects/metabolism MH - Neurotrophin 3/*drug effects/genetics/metabolism MH - RNA, Messenger/analysis MH - Random Allocation MH - Rats MH - Rats, Sprague-Dawley MH - Receptor, trkB/drug effects/genetics/metabolism MH - Receptor, trkC/drug effects/genetics/metabolism MH - Serotonin Agents/pharmacology MH - Substantia Nigra/drug effects/metabolism MH - Time Factors MH - Tyrosine 3-Monooxygenase/drug effects/metabolism PMC - PMC3891916 MID - NIHMS542092 EDAT- 2012/01/13 06:00 MHDA- 2012/09/29 06:00 PMCR- 2014/01/15 CRDT- 2012/01/13 06:00 PHST- 2012/01/13 06:00 [entrez] PHST- 2012/01/13 06:00 [pubmed] PHST- 2012/09/29 06:00 [medline] PHST- 2014/01/15 00:00 [pmc-release] AID - 10.1002/cne.23048 [doi] PST - ppublish SO - J Comp Neurol. 2012 Aug 1;520(11):2459-74. doi: 10.1002/cne.23048.