Suppr超能文献

一个新的 PLA2G6 突变与婴儿神经轴索性营养不良的家族有关。

A new PLA2G6 mutation in a family with infantile neuroaxonal dystrophy.

机构信息

Institute of Molecular Bioimaging and Physiology, National Research Council, Section of Germaneto, Catanzaro, Italy; Institute of Neurology, Department of Medical and Surgical Sciences, University Magna Graecia, Catanzaro, Italy.

Unit of Medical Genetics, S. Orsola-Malpighi Hospital, Bologna, Italy.

出版信息

J Neurol Sci. 2017 Oct 15;381:209-212. doi: 10.1016/j.jns.2017.08.3260. Epub 2017 Sep 1.

Abstract

Phospholipase A2-associated neurodegeneration (PLAN), a syndrome of Neurodegeneration with Brain Iron Accumulation (NBIA), is an autosomal recessive disorder caused by mutations in PLA2G6 gene. This gene encodes a calcium-independent group VI phospholipase A2 (iPLA-VI) critical in cell membrane homeostasis. PLAN syndrome encompasses a group of phenotypes with a different age of onset: classic infantile neuroaxonal dystrophy (INAD), atypical neuroaxonal dystrophy of childhood-onset (atypical NAD) and adult-onset PLA2G6-related dystonia-parkinsonism (PARK14). INAD is a severe progressive psychomotor disorder characterized by the presence of axonal spheroids throughout the central and peripheral nervous system. Here we report clinical, genetic and histopathological findings of an INAD consanguineous-family from Senegal. Sanger sequencing analysis revealed a new homozygous PLA2G6-mutation in the proband (c.1483C>T) and the co-segregation of the mutation in this family. Electron microscopy on skin biopsy showed degenerated axons confirming the phenotype. This study contributes to enrich the landscape of PLA2G6-associated INAD mutations and enforce the genotype-phenotype correlation.

摘要

磷脂酶 A2 相关神经退行性变(PLAN)是一种神经退行性疾病伴脑铁蓄积(NBIA),是一种常染色体隐性遗传疾病,由 PLA2G6 基因突变引起。该基因编码一种钙非依赖性的 VI 组磷脂酶 A2(iPLA-VI),在细胞膜稳态中起着关键作用。PLAN 综合征包含一组具有不同发病年龄的表型:经典婴儿型神经轴索性营养不良(INAD)、儿童期发病的非典型神经轴索性营养不良(非典型 NAD)和成年发病的 PLA2G6 相关肌张力障碍-帕金森病(PARK14)。INAD 是一种严重的进行性精神运动障碍,其特征是中枢和周围神经系统中存在轴索性球体。本文报告了来自塞内加尔的一个 INAD 近亲家族的临床、遗传和组织病理学发现。桑格测序分析显示先证者存在 PLA2G6 基因的新纯合突变(c.1483C>T),且该突变在该家族中共同遗传。皮肤活检的电子显微镜显示退行性轴突,证实了该表型。本研究丰富了 PLA2G6 相关 INAD 突变的图谱,并加强了基因型-表型相关性。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验