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检测和发现通过下一代测序:当前和未来实现的复杂性扩张的复杂性扩张

Haloom Rafehi^1,2, Mark F Bennett^1,2,3, Melanie Bahlo^1,2

¹Population Health and Immunity Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia.

Emerging topics in life sciences

|September 21, 2023

概括

全基因组测序提供了一个可扩展的解决方案,用于诊断由重复扩张引起的遗传性小脑缩症. 这种基因组方法改善了这些罕见的神经疾病的诊断率.

科学领域:

基因组学就是基因组学.
神经学神经学
罕见疾病罕见疾病

背景情况:

遗传性小脑缩症是一种渐进性神经系统疾病,通常是由短串联重复 (STR) 中的重复扩张 (RE) 引起的.
目前的诊断方法,如重复启动的PCR和南方斑块是不可扩展的或普遍可用的.
短读测序的进步,特别是全基因组测序 (WGS),改善了STR和RE的检测.

研究的目的:

突出全基因组测序 (WGS) 对于诊断遗传性缺氧障碍的有用性.
将WGS作为重复膨胀障碍传统分子测试的可行替代方案.
强调WGS在发现新的致病重复扩张中的作用.

主要方法:

使用短读测序数据,特别是全基因组测序 (WGS).
应用已建立的重复扩展 (RE) 检测管道来分析基因组数据.
利用WGS数据发现新型致病性RE.

主要成果:

在使用短读序列数据检测STR和RE方面取得了重大进展.
WGS为RE疾病提供了一种实用且可扩展的第一步诊断替代方案.
使用WGS数据确定了许多新的致病性RE引起动脉.

结论:

基因组数据,特别是WGS,是促进发现和诊断导致的重复扩张障碍的关键资源.
实施基于WGS的管道可以显著提高遗传性性无氧症患者的诊断率.
在诊断罕见的遗传神经疾病方面,WGS代表了范式的转变.

关键词:

过敏性过敏症 (ataxia) 是一种导致过敏性过敏的疾病.临床基因组学临床基因组学重复扩张可以重复扩张.短串联重复重复的重复进行全基因组测序.

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