کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4339030 1614904 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Inhibition of the mammalian target of rapamycin pathway by rapamycin blocks cocaine-induced locomotor sensitization
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
Inhibition of the mammalian target of rapamycin pathway by rapamycin blocks cocaine-induced locomotor sensitization
چکیده انگلیسی

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.

Research Highlights▶ Acute cocaine exposure activates the mTOR in the cortex, VTA, and NAc. ▶ Inhibition of mTOR blocks the induction of cocaine-induced locomotor sensitization. ▶ Inhibition of mTOR blocks the expression of cocaine-induced locomotor sensitization.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience - Volume 172, 13 January 2011, Pages 104–109
نویسندگان
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