低通全基因组测序是一种可靠且具有成本效益的方法,用于临床环境中的拷贝数变异分析
Patricia C Mazzonetto1,2, Darine Villela2, Silvia Souza da Costa1
1The Human Genome and Stem Cell Research Center, Department of Genetics and Evolutionary Biology, Institute of Biosciences, University of São Paulo, São Paulo, SP, Brazil.
Annals of human genetics
|October 9, 2023
概括
低通全基因组测序 (LP-WGS) 在临床细胞遗传学中有效检测复制数变异 (CNV). 这种方法表现出高的一致性和准确性,为诊断染色体失衡提供了染色体微阵列分析的可行替代方案.
科学领域:
- 遗传学 遗传学是一种遗传学.
- 基因组医学是基因组医学.
- 临床细胞遗传学
背景情况:
- 下一代测序已经减少了基因组测序的成本和时间.
- 低通全基因组测序 (LP-WGS) 正在成为复制数变异 (CNV) 分析的替代方案.
研究的目的:
- 评估LP-WGS在临床细胞遗传学中检测CNV的性能.
- 将LP-WGS与染色体微阵列分析 (CMA) 进行比较,以识别染色体失衡.
主要方法:
- 用44个DNA样本与已知的CNV (通过CMA检测到) 作为阳性对照.
- 包括55个染色体不平衡的产前和产后样本,范围从75 kb到90.3 Mb.
- 经过LP-WGS测试,以检测其检测动脉和马赛克的能力.
主要成果:
- LP-WGS成功检测到所有CNV,显示出高一致性和强大的性能.
- 通过LP-WGS检测到的染色体不平衡的大小与CMA的尺寸兼容.
- LP-WGS显示分辨率和灵敏度与CMA相提并论.
结论:
- LP-WGS是临床诊断中CNV检测的一个潜在工具.
- 该方法是检测染色体失衡的可行替代方法.
- 由于其准确性和商用软件,LP-WGS可用于常规诊断设置.
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