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发出混合信号:分子级联突变在皮质发育畸形和癫痫中的作用不断扩大

Sending Mixed Signals: The Expanding Role of Molecular Cascade Mutations in Malformations of Cortical Development and Epilepsy.

作者信息

Iffland Philip H, Crino Peter B

机构信息

Post-doctoral research fellow, Shriners Hospitals Pediatric Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA.

Post-doctoral research fellow, Shriners Hospitals Pediatric Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Professor and Vice Chair, Department of Neurology, Temple University Hospital, Philadelphia, PA.

出版信息

Epilepsy Curr. 2016 May-Jun;16(3):158-63. doi: 10.5698/1535-7511-16.3.158.

DOI:10.5698/1535-7511-16.3.158
PMID:27330441
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4913847/
Abstract

Advances in gene sequencing techniques have led to a dramatic increase in the number of signaling cascade and cytoskeletal assembly mutations associated with malformations of cortical development and epilepsy. At the forefront of this research are novel mutations found in regulators of the PI3K/AKT/mTOR cascade and tubulin-associated malformations of cortical development. However, there is limited understanding of the consequences of these newly discovered germline and somatic mutations on cellular function or how these changes in cell biology may lead to areas-large or small-of malformed cortex and recurrent spontaneous seizures. We summarize and discuss what is currently known in this field in an effort to shine light on vast gaps in our knowledge of relatively common causes of cortical malformations.

摘要

基因测序技术的进步导致与皮质发育畸形和癫痫相关的信号级联和细胞骨架组装突变数量急剧增加。该研究的前沿是在PI3K/AKT/mTOR级联调节因子和微管蛋白相关的皮质发育畸形中发现的新突变。然而,对于这些新发现的种系和体细胞突变对细胞功能的影响,或者细胞生物学中的这些变化如何导致大小不一的皮质畸形区域和复发性自发性癫痫,人们了解有限。我们总结并讨论了该领域目前已知的情况,以期揭示我们在相对常见的皮质畸形病因知识方面存在的巨大差距。

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2
PI3K/AKT pathway mutations cause a spectrum of brain malformations from megalencephaly to focal cortical dysplasia.PI3K/AKT信号通路突变会导致一系列从巨脑症到局灶性皮质发育异常的脑畸形。
Brain. 2015 Jun;138(Pt 6):1613-28. doi: 10.1093/brain/awv045. Epub 2015 Feb 25.
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Focal Cortical Dysplasia: Gene Mutations, Cell Signaling, and Therapeutic Implications.局灶性皮质发育不良:基因突变、细胞信号传导及治疗意义。
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引用本文的文献

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Variants in Causes Occipital Cortical Malformation.导致枕叶皮质发育畸形的变异。
Front Genet. 2021 Jul 20;12:616761. doi: 10.3389/fgene.2021.616761. eCollection 2021.
2
mTOR Hyperactivity Levels Influence the Severity of Epilepsy and Associated Neuropathology in an Experimental Model of Tuberous Sclerosis Complex and Focal Cortical Dysplasia.mTOR 过度活跃水平影响结节性硬化症和局灶性皮质发育不良的实验模型中癫痫的严重程度和相关神经病理学。
J Neurosci. 2019 Apr 3;39(14):2762-2773. doi: 10.1523/JNEUROSCI.2260-18.2019. Epub 2019 Jan 30.

本文引用的文献

1
Mouse models of human PIK3CA-related brain overgrowth have acutely treatable epilepsy.人类PIK3CA相关脑过度生长的小鼠模型患有可急性治疗的癫痫。
Elife. 2015 Dec 3;4:e12703. doi: 10.7554/eLife.12703.
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An AKT3-FOXG1-reelin network underlies defective migration in human focal malformations of cortical development.AKT3-FOXG1-瑞连蛋白网络是人类皮质发育局灶性畸形中迁移缺陷的基础。
Nat Med. 2015 Dec;21(12):1445-54. doi: 10.1038/nm.3982. Epub 2015 Nov 2.
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Mutations in the mammalian target of rapamycin pathway regulators NPRL2 and NPRL3 cause focal epilepsy.哺乳动物雷帕霉素靶蛋白通路调节因子 NPRL2 和 NPRL3 的突变导致局灶性癫痫。
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Impaired Reelin-Dab1 Signaling Contributes to Neuronal Migration Deficits of Tuberous Sclerosis Complex.Reelin-Dab1信号通路受损导致结节性硬化症的神经元迁移缺陷。
Cell Rep. 2015 Aug 11;12(6):965-78. doi: 10.1016/j.celrep.2015.07.013. Epub 2015 Jul 30.
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De novo mutations in KIF1A cause progressive encephalopathy and brain atrophy.KIF1A 中的从头突变导致进行性脑病和脑萎缩。
Ann Clin Transl Neurol. 2015 Jun;2(6):623-35. doi: 10.1002/acn3.198. Epub 2015 May 1.
7
Somatic Mutations in the MTOR gene cause focal cortical dysplasia type IIb.MTOR 基因中的体细胞突变导致 IIb 型局灶性皮质发育不良。
Ann Neurol. 2015 Sep;78(3):375-86. doi: 10.1002/ana.24444. Epub 2015 Jul 3.
8
Familial cortical dysplasia type IIA caused by a germline mutation in DEPDC5.由 DEPDC5 种系突变引起的家族性皮质发育不良 IIA 型。
Ann Clin Transl Neurol. 2015 May;2(5):575-80. doi: 10.1002/acn3.191. Epub 2015 Mar 12.
9
Hemispheric cortical dysplasia secondary to a mosaic somatic mutation in MTOR.继发于MTOR基因镶嵌体体细胞突变的半球性皮质发育异常
Neurology. 2015 May 19;84(20):2029-32. doi: 10.1212/WNL.0000000000001594. Epub 2015 Apr 15.
10
mTOR signaling in epilepsy: insights from malformations of cortical development.癫痫中的mTOR信号传导:来自皮质发育畸形的见解。
Cold Spring Harb Perspect Med. 2015 Apr 1;5(4):a022442. doi: 10.1101/cshperspect.a022442.