Inhibition of the mammalian target of rapamycin pathway by rapamycin blocks cocaine-induced locomotor sensitization.
Inhibition of the mammalian target of rapamycin pathway by rapamycin blocks cocaine-induced locomotor sensitization.
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DOI:
10.1016/j.neuroscience.2010.10.041
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发表时间:
2011-01-13
期刊:
影响因子:
3.3
通讯作者:
Huang Y
中科院分区:
文献类型:
--
作者:
Wu J;McCallum SE;Glick SD;Huang Y
Repeated cocaine exposure induces locomotor sensitization, which is mediated by adaptive changes in synaptic transmission in the mesolimbic dopamine pathway. The molecular mechanisms underlying this adaptation remain poorly understood. One pathway that may play a role is the mammalian target of rapamycin (mTOR) which is implicated in synaptic plasticity. In the present study, we found that cocaine exposure stimulates mTOR activity in rat brain. Furthermore, inhibition of mTOR by rapamycin blocked the induction as well as the expression of cocaine-induced locomotor sensitization in rats. These data elucidate a novel mechanism by which the mTOR pathway mediates cocaine-induced behavioral changes and could suggest a new interventional strategy for drug abuse.
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