Anterior Hippocampus in Schizophrenia Pathogenesis: Molecular Evidence from a Proteome Study

Anterior Hippocampus in Schizophrenia Pathogenesis: Molecular Evidence from a Proteome Study
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海马前部在精神分裂症发病机制中的作用:来自蛋白质组研究的分子证据

DOI:
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发表时间:
2009
期刊:
Australian and New Zealand journal of psychiatry (Print)
影响因子:
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通讯作者:
S. Sivagnanasundaram
S. Sivagnanasundaram
中科院分区:
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文献类型:
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作者:
Maryam Nesvaderani;I. Matsumoto;S. Sivagnanasundaram

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目的:本研究的目的是确定精神分裂症患者与神经健康对照者大脑前海马和后海马中差异表达的蛋白质。方法:分别从 9 名精神分裂症患者和 9 名对照个体以及 7 名精神分裂症患者和 7 名对照个体的新鲜冷冻死后海马后部和前部提取的蛋白质,使用二维凝胶电泳和质谱法筛选差异表达。结果:与后海马 (n = 16) 相比,前海马 (n = 43) 中差异表达的蛋白点数量显着增多,分别代表 34 种和 14 种独特蛋白。这些蛋白质参与细胞骨架结构和功能、神经传递和线粒体功能。结论:根据异常的蛋白表达谱,前海马似乎比后海马更多地参与精神分裂症的发病机制。此外,与之前的发现一致,我们发现了支持精神分裂症海马神经元细胞结构和功能、神经传递和线粒体功能异常的分子证据。
Objective: The purpose of the present study was to identify differentially expressed proteins in the anterior and posterior hippocampus of brains of schizophrenia patients compared to neurologically healthy controls. Method: Proteins extracted from fresh frozen post-mortem posterior and anterior hippocampus for nine schizophrenia and nine control individuals, and seven schizophrenia and seven control individuals, respectively, were screened for differential expression using 2-D gel electrophoresis and mass spectrometry. Results: A significantly larger number of protein spots were differentially expressed in the anterior (n = 43) compared to the posterior (n = 16) hippocampus, representing 34 and 14 unique proteins, respectively. These proteins are involved in cytoskeleton structure and function, neurotransmission and mitochondrial function. Conclusion: Based on the aberrant protein expression profiles, the anterior hippocampus appears to be more involved in schizophrenia pathogenesis than the posterior hippocampus. Furthermore, consistent with previous findings, we found molecular evidence to support abnormal neuronal cytoarchitecture and function, neurotransmission and mitochondrial function in the schizophrenia hippocampus.
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