Lithium attenuates methamphetamine-induced hyperlocomotion and behavioral sensitization via modulation of prefrontal monoamine release

被引：32

作者：

Ago, Yukio ^{[1
]}

Tanaka, Tatsunori ^{[1
]}

Kita, Yuki ^{[1
]}

Tokumoto, Hokuto ^{[1
]}

Takuma, Kazuhiro ^{[1
]}

Matsuda, Toshio ^{[1
,2
,3
]}

机构：

[1] Osaka Univ, Lab Med Pharmacol, Grad Sch Pharmaceut Sci, Suita, Osaka 5650871, Japan

[2] Osaka Univ, Hamamatsu Univ Sch Med, Suita, Osaka 5650871, Japan

[3] Osaka Univ, Kanazawa Univ, United Grad Sch Child Dev, Suita, Osaka 5650871, Japan

来源：

NEUROPHARMACOLOGY | 2012年 / 62卷 / 04期

基金：

日本学术振兴会;

关键词：

Lithium; Methamphetamine; Sensitization; Dopamine; Serotonin; Prefrontal cortex; IN-VIVO; NUCLEUS-ACCUMBENS; 5-HT1A RECEPTORS; FRONTAL-CORTEX; MICE; MICRODIALYSIS; CELLS; RATS;

D O I：

10.1016/j.neuropharm.2011.10.004

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Lithium attenuates psychostimulant-induced hyperactivity and behavioral sensitization, but the exact mechanisms are not known. Previous studies show that lithium has neuromodulatory effects on monoamine systems. The present study was aimed to clarify whether prefrontal monoaminergic neurotransmission is involved in the effect of lithium on methamphetamine (METH)-induced behaviors in mice. Lithium attenuated METH-induced hyperactivity and METH-induced increase in extracellular dopamine (DA), but not serotonin (5-HT), levels in the prefrontal cortex. Chronic METH caused behavioral sensitization and enhancement of METH-induced increase in prefrontal 5-HT release (neurochemical sensitization). Co-administration of lithium with METH attenuated behavioral sensitization and neurochemical sensitization. Chronic METH also reduced the 5-HT1A receptor agonist osemozotan-induced decrease in prefrontal 5-HT release (desensitization of presynaptic 5-HT1A autoreceptor), and this effect was reversed by co-administration of lithium. These results suggest that lithium attenuates acute METH-induced hyperactivity and chronic METH-induced behavioral sensitization via modulation of prefrontal release of DA and 5-HT, respectively. The present study also suggests that a 5-HT1A receptor-mediated mechanism is involved in the effect of lithium on chronic METH-induced behavioral sensitization. (c) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1634 / 1639

页数：6

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