Longitudinal transcriptomic dysregulation in the peripheral blood of transgenic Huntington's disease monkeys.

Longitudinal transcriptomic dysregulation in the peripheral blood of transgenic Huntington's disease monkeys.
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DOI:
10.1186/1471-2202-14-88
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发表时间:
2013-08-17
期刊:
影响因子:
2.4
通讯作者:
Chan AW
Chan AW
中科院分区:
医学4区
文献类型:
--
作者:
Kocerha J;Liu Y;Willoughby D;Chidamparam K;Benito J;Nelson K;Xu Y;Chi T;Engelhardt H;Moran S;Yang SH;Li SH;Li XJ;Larkin K;Neumann A;Banta H;Yang JJ;Chan AW

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亨廷顿舞蹈病(HD)是一种进行性神经退行性疾病,由亨廷顿蛋白(HTT)基因的聚谷氨酰胺(polyQ)区域扩张引起。HD的临床特征是认知、心理和运动障碍。分子不稳定性是神经系统疾病进展的核心组成部分,可以通过纵向转录组分析进行全面评估。适合纵向检查的动物模型的发展使不同的疾病相关机制得以确定。在这里,我们报告了第一个纵向研究转基因猴子的基因组整合不同长度的人类HTT基因和一系列多q重复序列。利用这一独特的转基因HD非人灵长类动物(HD猴),我们分析了2年内从HD猴和年龄匹配的野生型对照猴收集的外周血中超过47,000个转录本。在HD猴子中,表达模式随疾病进展而分化的信使rna极大地促进了我们在人类HD患者血液中寻找具有诊断或治疗潜力的转录本,为临床研究开辟了一条新的途径。
Huntington’s Disease (HD) is a progressive neurodegenerative disorder caused by an expansion in the polyglutamine (polyQ) region of the Huntingtin (HTT) gene. The clinical features of HD are characterized by cognitive, psychological, and motor deficits. Molecular instability, a core component in neurological disease progression, can be comprehensively evaluated through longitudinal transcriptomic profiling. Development of animal models amenable to longitudinal examination enables distinct disease-associated mechanisms to be identified. Here we report the first longitudinal study of transgenic monkeys with genomic integration of various lengths of the human HTT gene and a range of polyQ repeats. With this unique group of transgenic HD nonhuman primates (HD monkeys), we profiled over 47,000 transcripts from peripheral blood collected over a 2 year timespan from HD monkeys and age-matched wild-type control monkeys. Messenger RNAs with expression patterns which diverged with disease progression in the HD monkeys considerably facilitated our search for transcripts with diagnostic or therapeutic potential in the blood of human HD patients, opening up a new avenue for clinical investigation.
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