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对疑似阿尔波特综合征患者的分子审查 - - 一个单一中心的体验

Paulina Halat-Wolska¹, Elżbieta Ciara¹, Michał Pac²

¹Department of Medical Genetics, The Children's Memorial Health Institute, 04-730 Warsaw, Poland.

|February 26, 2025

概括

下一代测序 (NGS) 面板显著改善了阿尔波特综合征的诊断,在79%的患者中确定了遗传原因,并使早期治疗成为可能. 这种方法有助于预测疾病的过程和评估家庭风险,可能避免脏活检等侵入性手术.

科学领域:

遗传学是一个遗传学.
腎臟病學 (nephrology) 是一種醫學專業.
分子生物学分子生物学

背景情况:

阿尔波特综合征 (AS) 是一种遗传性病,由COL4A3,COL4A4和COL4A5基因的变异引起.
准确的基因诊断对于了解疾病进展和家庭风险评估至关重要.

研究的目的:

评估针对波兰队列中的阿尔波特综合征的下一代测序 (NGS) 面板的诊断产量和临床效用.
为了改善患者管理,将鉴定的基因型与临床表现相关联.

主要方法:

针对性的NGS小组被用来分析138名无关的试验者和109名疑似患有阿尔波特综合征的家庭成员的DNA.
变种根据ACMG/AMP指南进行分类.
通过将遗传发现与临床数据进行比较,确定了基因型-表型相关性.

主要成果:

阿尔波特综合征的遗传原因在138名试验者中被确定为109名 (79%的诊断率).
总共有79个不同的COL4A3-COL4A5变种被检测到,其中包括23个新型变种.
最常见的变种,COL4A5:p.Gly624Asp,占X关联AS病例的31%.

结论:

针对性的NGS面板提供了高的诊断率和缩短了阿尔波特综合征的诊断时间.
NGS促进了基因型-表型相关性,有助于临床过程的预测和避免脏活检.
这种方法对于识别载体,确定遗传模式,指导遗传咨询和早期保护治疗有价值.

关键词:

阿尔波特综合征是什么意思在 COL4A3A3 中使用.在 COL4A4A4 中使用.在 COL4A5A5 中使用.基因检测基因检测是指基因检测.这是下一代测序.新型分子变异的新型分子变异.

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