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Effect of Sodium Selenate on Hippocampal Proteome of 3×Tg-AD Mice—Exploring the Antioxidant Dogma of Selenium against Alzheimer’s Disease
ACS Chemical Neuroscience ( IF 4.1 ) Pub Date : 2018-04-11 00:00:00 , DOI: 10.1021/acschemneuro.8b00034
Javed Iqbal 1 , Kaoyuan Zhang 1 , Na Jin 1 , Yuxi Zhao 1 , Qiong Liu 1 , Jiazuan Ni 1 , Liming Shen 1
Affiliation  

Selenium (Se), an antioxidant trace element, is an important nutrient for maintaining brain functions and is reported to be involved in Alzheimer’s disease (AD) pathologies. The present study has been designed to elucidate the protein changes in hippocampus of 3×Tg-AD mice after supplementing sodium selenate as an inorganic source of selenium. By using iTRAQ proteomics technology, 113 differentially expressed proteins (DEPs) are found in AD/WT mice with 37 upregulated and 76 downregulated proteins. Similarly, in selenate-treated 3×Tg-AD (ADSe/AD) mice, 115 DEPs are found with 98 upregulated and 17 downregulated proteins. The third group of mice (ADSe/WT) showed 75 DEPs with 46 upregulated and 29 downregulated proteins. Among these results, 42 proteins (40 downregulated and 2 upregulated) in the diseased group showed reverse expression when treated with selenate. These DEPs are analyzed with different bioinformatics tools and are found associated with various AD pathologies and pathways. Based on their functions, selenate-reversed proteins are classified as structural proteins, metabolic proteins, calcium regulating proteins, synaptic proteins, signaling proteins, stress related proteins, and transport proteins. Six altered AD associated proteins are successfully validated by Western blot analysis. This study shows that sodium selenate has a profound effect on the hippocampus of the triple transgenic AD mice. This might be established as an effective therapeutic agent after further investigation.

中文翻译:

硒酸钠对3×Tg-AD小鼠海马蛋白质组的影响-探讨硒抗阿尔茨海默氏病的教条

硒(Se)是一种抗氧化剂微量元素,是维持大脑功能的重要营养物质,据报道与阿尔茨海默氏病(AD)病理有关。本研究旨在阐明补充硒酸钠作为硒的无机源后3xTg-AD小鼠海马中蛋白质的变化。通过使用iTRAQ蛋白质组学技术,在AD / WT小鼠中发现了113种差异表达的蛋白(DEP),其中37种蛋白被上调,而76种蛋白被下调。同样,在硒酸盐处理的3xTg-AD(ADSe / AD)小鼠中,发现115种DEP具有98种上调的蛋白和17种下调的蛋白。第三组小鼠(ADSe / WT)显示75种DEP,其中46种蛋白被上调,而29种蛋白被下调。在这些结果中,当用硒酸盐治疗时,患病组中的42种蛋白质(40种下调和2种上调)显示出反向表达。这些DEPs使用不同的生物信息学工具进行了分析,并发现与各种AD病理学和途径相关。根据它们的功能,将硒酸反向蛋白分为结构蛋白,代谢蛋白,钙调节蛋白,突触蛋白,信号蛋白,应激相关蛋白和转运蛋白。通过Western印迹分析成功验证了六种改变的AD相关蛋白。这项研究表明,硒酸钠对三重转基因AD小鼠的海马区具有深远的影响。经过进一步研究,可以将其确定为有效的治疗剂。这些DEPs使用不同的生物信息学工具进行了分析,并发现与各种AD病理学和途径相关。根据它们的功能,将硒酸反向蛋白分为结构蛋白,代谢蛋白,钙调节蛋白,突触蛋白,信号蛋白,应激相关蛋白和转运蛋白。六种改变的AD相关蛋白已通过Western blot分析成功验证。这项研究表明,硒酸钠对三重转基因AD小鼠的海马区具有深远的影响。经过进一步研究,可以将其确定为有效的治疗剂。这些DEPs使用不同的生物信息学工具进行了分析,并发现与各种AD病理学和途径相关。根据它们的功能,将硒酸反向蛋白分为结构蛋白,代谢蛋白,钙调节蛋白,突触蛋白,信号蛋白,应激相关蛋白和转运蛋白。六种改变的AD相关蛋白已通过Western blot分析成功验证。这项研究表明,硒酸钠对三重转基因AD小鼠的海马区具有深远的影响。经过进一步研究,可以将其确定为有效的治疗剂。信号蛋白,应激相关蛋白和转运蛋白。六种改变的AD相关蛋白已通过Western blot分析成功验证。这项研究表明,硒酸钠对三重转基因AD小鼠的海马区具有深远的影响。经过进一步研究,可以将其确定为有效的治疗剂。信号蛋白,应激相关蛋白和转运蛋白。六种改变的AD相关蛋白已通过Western blot分析成功验证。这项研究表明,硒酸钠对三重转基因AD小鼠的海马区具有深远的影响。经过进一步研究,可以将其确定为有效的治疗剂。
更新日期:2018-04-11
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