期刊论文

Chen, J.

中文

生物工程学报

1000-3061

2022

38

3

1149-1158

10.13345/j.cjb.210162

16A098:湖南省教育厅基金项目 2017NK2311:湖南省科技厅重点科研项目

本校为第一且通讯机构

在多种神经性疼痛动物模型中均发现周围神经损伤可导致由CACNA2D1编码的α2δ-1蛋白在脊髓和背根神经节(DRG)中表达显著上调.CACNA2D1过表达使脊髓背角神经元的突触前和突触后NMDAR活性增强,引起疼痛过敏症.α2δ-1与NMDAR相互作用,促进了 NMDAR在细胞表面转运和突触膜上的定位,可引起神经病理性疼痛,且α2δ-1-NMDAR复合物也被发现存在于其他多种病理状态下,如某些神经源性的高血压、脑缺血.本研究使用慢病毒转染构建稳定表达α2δ-1-NMDAR复合物的人肾胚HEK293T细胞株;通过荧光显微镜、RT-qPCR及Western blotting方法对所建立的稳转细胞系进行鉴定,结果显示HEK293T被成功转染且基因能够稳定表...

The α2δ-1 protein coded by Cacna2d1 is dramatically up-regulated in dorsal root ganglion (DRG) neurons and spinal dorsal horn following sensory nerve injury in various animal models of neuropathic pain. Cacna2d1 overexpression potentiates presynaptic and postsynaptic NMDAR activity of spinal dorsal horn neurons to cause pain hypersensitivity. The α2δ-1-NMDAR interaction promotes surface trafficking and synaptic targeting of NMDARs in neuropathic pain caused by chemotherapeutic agents and peripheral nerve injury, as well as in other patholog...