microRNA-128a dysregulation in transgenic Huntington's disease monkeys.

microRNA-128a dysregulation in transgenic Huntington's disease monkeys.
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DOI:
10.1186/1756-6606-7-46
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发表时间:
2014-06-13
期刊:
影响因子:
3.6
通讯作者:
Chan AW
Chan AW
中科院分区:
医学3区
文献类型:
--
作者:
Kocerha J;Xu Y;Prucha MS;Zhao D;Chan AW

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亨廷顿氏病(HD)是一种进行性神经退行性疾病,由亨廷顿蛋白(HTT)基因突变引起。MicroRNAs (miRNAs)最近被认为是神经系统疾病的表观遗传调节因子,然而,它们在HD发病机制中的作用尚未明确。在这里,我们研究转基因HD猴(HD猴),以检测该疾病灵长类动物模型中的miRNA失调。在本报告中,在HD猴子的额叶皮层中发现了11个mirna与HD显著相关(P值< 0.05)。我们进一步关注其中一个候选miR-128a,因为它在人类和HD小鼠中具有相应的破坏,以及它有趣的基因靶标列表。在我们的HD猴模型中,miR-128a在出生时下调。然后,我们证实miR-128a在症状前和症状后HD患者的大脑中也下调。此外,我们的研究证实了miR-128a调控的一组典型HD信号基因,包括HTT和亨廷顿蛋白相互作用蛋白1 (HIP1)。我们的研究发现,miR-128a可能在HD中发挥关键作用,可能是该疾病的治疗或生物标志物的可行候选。
Huntington’s Disease (HD) is a progressive neurodegenerative disorder with a single causal mutation in the Huntingtin (HTT) gene. MicroRNAs (miRNAs) have recently been implicated as epigenetic regulators of neurological disorders, however, their role in HD pathogenesis is not well defined. Here we study transgenic HD monkeys (HD monkeys) to examine miRNA dysregulation in a primate model of the disease. In this report, 11 miRNAs were found to be significantly associated (P value < 0.05) with HD in the frontal cortex of the HD monkeys. We further focused on one of those candidates, miR-128a, due to the corresponding disruption in humans and mice with HD as well as its intriguing lists of gene targets. miR-128a was downregulated in our HD monkey model by the time of birth. We then confirmed that miR-128a was also downregulated in the brains of pre-symptomatic and post-symptomatic HD patients. Additionally, our studies confirmed a panel of canonical HD signaling genes regulated by miR-128a, including HTT and Huntingtin Interaction Protein 1 (HIP1). Our studies found that miR-128a may play a critical role in HD and could be a viable candidate as a therapeutic or biomarker of the disease.
DOI: 10.1186/1471-2202-14-88
发表时间: 2013-08-17
期刊: BMC neuroscience
影响因子: 2.4
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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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影响因子: 11.1
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发表时间: 2009-09-01
影响因子: 3.5
作者:
Kocerha, Jannet;Kauppinen, Sakari;Wahlestedt, Claes
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DOI: 10.1186/1471-2164-12-527
发表时间: 2011-10-27
期刊: BMC genomics
影响因子: 4.4
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Kocerha J;Kouri N;Baker M;Finch N;DeJesus-Hernandez M;Gonzalez J;Chidamparam K;Josephs KA;Boeve BF;Graff-Radford NR;Crook J;Dickson DW;Rademakers R
通讯作者: Rademakers R