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首页> 外文期刊>Journal of Experimental Neuroscience >Protein Expression Dynamics during Postnatal Mouse Brain Development:
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Protein Expression Dynamics during Postnatal Mouse Brain Development:

机译:产后小鼠大脑发育过程中的蛋白质表达动力学:

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We explored differential protein expression profiles in the mouse forebrain at different stages of postnatal development, including 10-day (P10), 30-day (P30), and adult (Ad) mice, by large-scale screening of proteome maps using two-dimensional difference gel electrophoresis. Mass spectrometry analysis resulted in the identification of 251 differentially expressed proteins. Most molecular changes were observed between P10 compared to both P30 and Ad. Computational ingenuity pathway analysis (IPA) confirmed these proteins as crucial molecules in the biological function of nervous system development. Moreover, IPA revealed Semaphorin signaling in neurons and the protein ubiquitination pathway as essential canonical pathways in the mouse forebrain during postnatal development. For these main biological pathways, the transcriptional regulation of the age-dependent expression of selected proteins was validated by means of in situ hybridization. In conclusion, we suggest that proteolysis and neurite outgrowth guidance are key biological processes, particularly during early brain maturation.
机译:我们通过蛋白质组图的大规模筛选,使用两种方法,在出生后不同阶段的小鼠前脑(包括10天(P10),30天(P30)和成年(Ad)小鼠)中探索了差异蛋白表达谱。尺寸差凝胶电泳。质谱分析导致鉴定了251种差异表达的蛋白质。与P30和Ad相比,在P10之间观察到大多数分子变化。计算智能路径分析(IPA)证实了这些蛋白质是神经系统发育生物学功能中的关键分子。此外,IPA揭示了神经元中的Semaphorin信号传导和蛋白质泛素化途径是出生后发育过程中小鼠前脑中必不可少的经典途径。对于这些主要的生物途径,通过原位杂交来验证所选蛋白质的年龄依赖性表达的转录调控。总之,我们建议蛋白水解和神经突生长指导是关键的生物学过程,尤其是在早期大脑成熟过程中。

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