Non-Cell Autonomous and Epigenetic Mechanisms of Huntington's Disease.
Non-Cell Autonomous and Epigenetic Mechanisms of Huntington's Disease.
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DOI:
10.3390/ijms222212499
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发表时间:
2021-11-19
影响因子:
5.6
通讯作者:
Ryu H
中科院分区:
文献类型:
--
作者:
Kim C;Yousefian-Jazi A;Choi SH;Chang I;Lee J;Ryu H
Huntington’s disease (HD) is a rare neurodegenerative disorder caused by an expansion of CAG trinucleotide repeat located in the exon 1 of Huntingtin (HTT) gene in human chromosome 4. The HTT protein is ubiquitously expressed in the brain. Specifically, mutant HTT (mHTT) protein-mediated toxicity leads to a dramatic degeneration of the striatum among many regions of the brain. HD symptoms exhibit a major involuntary movement followed by cognitive and psychiatric dysfunctions. In this review, we address the conventional role of wild type HTT (wtHTT) and how mHTT protein disrupts the function of medium spiny neurons (MSNs). We also discuss how mHTT modulates epigenetic modifications and transcriptional pathways in MSNs. In addition, we define how non-cell autonomous pathways lead to damage and death of MSNs under HD pathological conditions. Lastly, we overview therapeutic approaches for HD. Together, understanding of precise neuropathological mechanisms of HD may improve therapeutic approaches to treat the onset and progression of HD.
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