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Activation of the Mammalian Target of Rapamycin in the Rostral Ventromedial Medulla Contributes to the Maintenance of Nerve Injury-Induced Neuropathic Pain in Rat 期刊论文

编号：

e8ce3631-3007-4691-a814-df1fb54b1e76
作者：

Wang, Jian^[1,2] Feng, DaYun^[3] Li, ZhiHua^[4] Feng, Ban^[1,2] Zhang, Han^[1,2] Zhang, Ting^[1,2] Chen, Tao^[1,2] Li, YunQing^[1,2,5]
语种：

English
期刊：

NEURAL PLASTICITY ISSN：2090-5904 2015 年
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摘要：

The mammalian target of rapamycin (mTOR), a serine-threonine protein kinase, integrates extracellular signals, thereby modulating several physiological and pathological processes, including pain. Previous studies have suggested that rapamycin (an mTOR inhibitor) can attenuate nociceptive behaviors in many pain models, most likely at the spinal cord level. However, the mechanisms of mTOR at the supraspinal level, particularly at the level of the rostral ventromedial medulla (RVM), remain unclear. Thus, the aim of this study was to elucidate the role of mTOR in the RVM, a key relay region for the descending pain control pathway, under neuropathic pain conditions. Phosphorylated mTOR was mainly expressed in serotonergic spinally projecting neurons and was significantly increased in the RVM after spared nerve injury-(SNI-) induced neuropathic pain. Moreover, in SNI rat brain slices, rapamycin infusion both decreased the amplitude instead of the frequency of spontaneous excitatory postsynaptic currents and reduced the numbers of action potentials in serotonergic neurons. Finally, intra-RVM microinjection of rapamycin effectively alleviated established mechanical allodynia but failed to affect the development of neuropathic pain. In conclusion, our data provide strong evidence for the role of mTOR in the RVM in nerve injury-induced neuropathic pain, indicating a novel mechanism of mTOR inhibitor-induced analgesia.
推荐引用方式
GB/T 7714：

Wang Jian,Feng Da-Yun,Li Zhi-Hua, et al. Activation of the Mammalian Target of Rapamycin in the Rostral Ventromedial Medulla Contributes to the Maintenance of Nerve Injury-Induced Neuropathic Pain in Rat [J].NEURAL PLASTICITY,2015.
APA：

Wang Jian,Feng Da-Yun,Li Zhi-Hua,Feng Ban,&Li Yun-Qing.(2015).Activation of the Mammalian Target of Rapamycin in the Rostral Ventromedial Medulla Contributes to the Maintenance of Nerve Injury-Induced Neuropathic Pain in Rat .NEURAL PLASTICITY.
MLA：

Wang Jian, et al. "Activation of the Mammalian Target of Rapamycin in the Rostral Ventromedial Medulla Contributes to the Maintenance of Nerve Injury-Induced Neuropathic Pain in Rat" .NEURAL PLASTICITY(2015).

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