基因组和RNA测序对于揭示与缺陷的ATP6AP1mRNA处理相关的神秘内在变异至关重要
Blai Morales-Romero1, Gerard Muñoz-Pujol1, Rafael Artuch2
1Section of Inborn Errors of Metabolism-IBC, Biochemistry and Molecular Genetics Department, Hospital Clínic de Barcelona, IDIBAPS, CIBERER, ISCIII, Barcelona, Spain.
Molecular genetics and metabolism
|June 15, 2024
概括
RNA测序 (RNA-seq) 和全基因组测序 (WGS) 改善了先天性糖化 (CDG) 疾病的诊断. 这项研究发现了新的ATP6AP1基因变异,提高了罕见遗传疾病的诊断能力.
科学领域:
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
- 医学诊断 医学诊断 医学诊断
背景情况:
- 门德尔乱的诊断先进,包括全外体测序 (WES) 和全基因组测序 (WGS).
- 由于变异解释挑战和WES限制,未被诊断的病例仍然存在.
- RNA测序 (RNA-seq) 和功能研究有助于诊断复杂的遗传疾病.
研究的目的:
- 在三个男性患者中研究ATP6AP1-CDG的遗传基础,WES结果不确定.
- 评估RNA-seq和WGS在诊断血糖酶化 (CDG) 的先天性疾病中的实用性.
- 在ATP6AP1基因中识别和功能性地表征新型变异.
主要方法:
- 在患者身上进行了全外体测序 (WES) 和全基因组测序 (WGS).
- 使用RNA测序 (RNA-seq) 来检测表达和拼接变化.
- 在HAP1细胞中进行了功能性检测,以验证变体的致病性.
主要成果:
- 通过RNA-seq检测,在两名患者中发现了ATP6AP1的低表达和异常拼接.
- 在患者中发现了ATP6AP1中的深度内在变异 (c.289-233C>T和c.289-289G>A).
- 功能性测试证实了已识别的变体对拼接的病原性影响.
结论:
- RNA-seq和WGS的整合显著提高了CDG等遗传疾病的诊断率.
- 在ATP6AP1中发现了导致CDG的新型深层内部变异.
- 组合WGS,RNA-seq和功能验证对于诊断未确定分子病因的患者至关重要.
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