Dendritic spine pathology in schizophrenia.

Dendritic spine pathology in schizophrenia.
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DOI:
10.1016/j.neuroscience.2012.04.044
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发表时间:
2013-10-22
期刊:
影响因子:
3.3
通讯作者:
Lewis, D. A.
Lewis, D. A.
中科院分区:
医学3区
文献类型:
--
作者:
Glausier, J. R.;Lewis, D. A.

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精神分裂症是一种神经发育障碍,其临床特征包括感知、认知和动机的损害。这些损伤反映了多个大脑区域内和跨多个大脑区域的神经元回路的改变,这些改变至少部分是由于树突棘的缺陷,树突棘是最兴奋性突触连接的部位。树突棘改变已在精神分裂症的多个脑区中被鉴定,但在新皮质的第3层中最好表征,其中锥体细胞棘密度较低。这些脊柱缺陷似乎出现在发展过程中,因此可能是在脊柱形成,修剪和/或维护的分子机制的干扰的结果。这些机制中的每一个都可以提供对新的治疗靶点的深入了解,用于预防或修复介导精神分裂症衰弱症状的神经回路的改变。
Schizophrenia is a neurodevelopmental disorder whose clinical features include impairments in perception, cognition and motivation. These impairments reflect alterations in neuronal circuitry within and across multiple brain regions that are due, at least in part, to deficits in dendritic spines, the site of most excitatory synaptic connections. Dendritic spine alterations have been identified in multiple brain regions in schizophrenia, but are best characterized in layer 3 of the neocortex, where pyramidal cell spine density is lower. These spine deficits appear to arise during development, and thus are likely the result of disturbances in the molecular mechanisms that underlie spine formation, pruning, and/or maintenance. Each of these mechanisms may provide insight into novel therapeutic targets for preventing or repairing the alterations in neural circuitry that mediate the debilitating symptoms of schizophrenia.
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