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首页> 外文期刊>The Journal of Neuroscience: The Official Journal of the Society for Neuroscience >The identification and characterization of oxidized RNAs in Alzheimer's disease.
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The identification and characterization of oxidized RNAs in Alzheimer's disease.

机译:阿尔茨海默氏病中氧化RNA的鉴定和表征。

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摘要

It has been shown that cytoplasmic RNA oxidation occurs to a great extent in the brains of Alzheimer's disease (AD) patients. The goal of this study was to isolate and identify oxidized RNA species in AD. We show that significant amounts of poly(A)+ mRNAs are oxidized in AD brains. RNA oxidation is not random but highly selective. Importantly, many identified oxidized mRNA species have been implicated in the pathogenesis of AD. Quantitative analysis revealed that some mRNA species are more susceptible to oxidative damage. We also investigated the biological consequence of oxidatively damaged mRNAs by expressing them in cell lines. Our data indicated that abnormal processing of proteins occurred to the oxidized mRNAs. This may implicate the potential contribution of RNA oxidation in the pathogenesis of AD.
机译:已经表明,阿尔茨海默氏病(AD)患者的大脑中很大程度发生细胞质RNA的氧化。这项研究的目的是分离和鉴定AD中的氧化RNA。我们显示大量的poly(A)+ mRNA在AD脑中被氧化。 RNA氧化不是随机的,而是高度选择性的。重要的是,许多鉴定出的氧化的mRNA种类与AD的发病机制有关。定量分析显示,某些mRNA物种更容易受到氧化损伤。我们还通过在细胞系中表达它们来研究氧化损伤的mRNA的生物学结果。我们的数据表明,氧化的mRNA发生了蛋白质的异常加工。这可能暗示了RNA氧化在AD发病机理中的潜在作用。

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