Cause or Effect: Misregulation of microRNA Pathways in Neurodegeneration.

Cause or Effect: Misregulation of microRNA Pathways in Neurodegeneration.
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DOI:
10.3389/fnins.2012.00048
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发表时间:
2012
影响因子:
4.3
通讯作者:
Gao FB
Gao FB
中科院分区:
医学2区
文献类型:
--
作者:
Gascon E;Gao FB

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在正常衰老或神经退行性疾病中,神经元的生存和功能依赖于蛋白质稳态,蛋白质稳态受到包括microRNA(MiRNA)途径在内的多种机制的调节。在不同类型的细胞中,作为miRNA处理关键酶的DICER的缺失,会通过细胞自主和非细胞自主机制导致神经退化。某些miRNAs的缺失也会导致一些模式生物的神经退化。另一方面,在不同的神经退行性疾病患者中,miRNA的表达是错误的。因此,miRNA途径在几种年龄依赖性神经退行性疾病的发病机制中似乎是必不可少的;然而,我们对其潜在机制的了解仍处于初级阶段。特定miRNAs与人类神经退行性变之间的确切因果关系需要进一步研究。
During normal aging or neurodegenerative diseases, neuronal survival and function depend on protein homeostasis, which is regulated by multiple mechanisms, including the microRNA (miRNA) pathway. In different cells types, the absence of Dicer, a key miRNA processing enzyme, leads to neurodegeneration through cell-autonomous and non-cell-autonomous mechanisms. Loss of certain miRNAs also causes neurodegeneration in some model organisms. On the other hand, miRNA expression is misregulated in patients with different neurodegenerative diseases. Thus, the miRNA pathway appears to be essential in the pathogenesis of several age-dependent neurodegenerative conditions; however, our understanding of the underlying mechanism remains rudimentary. The precise causal relationships between specific miRNAs and neurodegeneration in humans need to be further investigated.
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