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首页> 外文期刊>Brain research >The tetrapartite synapse: Extracellular matrix remodeling contributes to corticoaccumbens plasticity underlying drug addiction
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The tetrapartite synapse: Extracellular matrix remodeling contributes to corticoaccumbens plasticity underlying drug addiction

机译:四方突触:细胞外基质重塑有助于皮质成瘾药物潜在的成瘾性

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摘要

Synaptic plasticity has long been known to involve three key elements of neuropil, the presynapse, the postsynapse and adjacent glia. Here we review the role of the extracellular matrix in synaptic plasticity as a necessary component forming the tetrapartite synapse. We describe the role of matrix metalloproteinases as enzymes sculpting extracellular proteins and thereby creating an extracellular signaling domain required for synaptic plasticity. Specifically we focus on the role of the tetrapartite synapse in mediating the effects of addictive drugs at cortico-striatal synapses, and conclude that the extracellular signaling domain and its regulation by matrix metalloproteinases is critical for developing and expressing drug seeking behaviors.
机译:长期以来,突触可塑性涉及神经纤维的三个关键要素,即突触前,突触后和邻近的神经胶质。在这里,我们审查细胞外基质在突触可塑性中作为形成四部分突触的必要成分的作用。我们描述了基质金属蛋白酶作为雕刻细胞外蛋白的酶的作用,从而创建了突触可塑性所需的细胞外信号结构域。具体来说,我们专注于四方突触在介导成瘾药物对皮质-纹状体突触的影响中的作用,并得出结论,胞外信号传导域及其受基质金属蛋白酶的调节对于发展和表达寻药行为至关重要。

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