牛津纳米孔技术 [ONT] 测序:在遗传异质性疾病中的临床验证
Mario Urtis1, Chiara Paganini1, Viviana Vilardo1
1Centre for Inherited Diseases, Department of Research, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy.
Genes
|November 27, 2025
概括
使用牛津纳米孔技术 (ONT) 的长读测序 (LRS) 与标准短读测序 (SRS) 相比,可以更好地检测遗传性疾病中的复杂遗传变异. 这个验证证实了LRS的证实.
科学领域:
- 基因组学就是基因组学.
- 分子诊断学 分子诊断
- 生物信息学是一种生物信息学.
背景情况:
- 短读测序 (SRS) 是遗传性疾病遗传检测的标准,但有局限性.
- SRS与结构变异 (SVs),副本数变异 (CNVs) 和深层内在变异作斗争.
研究的目的:
- 验证牛津纳米孔技术 (ONT) 长读序列 (LRS) 用于临床遗传测试.
- 对人类遗传性疾病的既定方法进行LRS性能评估.
主要方法:
- 分析了509个样本 (393个具有已知的致病性/可能致病性变异,116个对照).
- 使用了带有 CE-IVD 面板的 ONT 测序平台 (MinION,GridION,PromethION-2).
- 使用4eVAR管道进行数据分析.
主要成果:
- 在检测已知的致病性/可能致病性变异方面实现了100%的灵敏度.
- 在 *ENG* 基因中确定了一个错过的 CNV,并精确定义了 SV 断点.
- 改善了在具有挑战性的基因组区域和深层内部区域的检测.
- 启用了紧急临床病例的快速 (<24小时) 测试.
结论:
- 在遗传性疾病中,ONT LRS的诊断性能与SRS的诊断性能相当.
- 在解决复杂和以前无法检测到的变异方面,LRS提供了显著的优势.
- 持续的LRS进步有望扩大临床应用.
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