在合成DNA,细胞系cfDNA模型和液体活检上基于CRISPR-Cas12a的高精度SNV检测协议
Kavish A V Kohabir1, Jasper Linthorst2, Rob M F Wolthuis3
1Department of Human Genetics, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Amsterdam Reproduction & Development, Amsterdam, the Netherlands; Imaging and Biomarkers, Cancer Center Amsterdam, Amsterdam, the Netherlands.
STAR protocols
|March 15, 2025
概括
这项研究引入了基于Cas12a的CRISPR诊断 (CRISPRdx) 方法,用于高精度的单核酸变体检测. 该协议提高了使用无细胞DNA和液体活检的基因测试的精度.
科学领域:
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
- 生物技术是生物技术.
背景情况:
- 基于CRISPR的诊断 (CRISPRdx) 显示出快速,负担得起的基因测试的潜力.
- 在CRISPRdx分析中实现单核酸分辨率仍然是一个重要的技术障碍.
研究的目的:
- 提出使用基于Cas12a的系统高精度检测单核酸变异 (SNV) 的协议.
- 展示ARTEMIS算法用于SNV识别和CRISPRRNA (crRNA) 设计的应用.
主要方法:
- 使用基于Cas12a的CRISPRdx方法进行SNV检测.
- 采用ARTEMIS算法用于目标SNV识别和crRNA设计.
- 在合成DNA,细胞系衍生的无细胞DNA (cfDNA) 和液体活检样本上进行了基于光的CRISPRdx测定.
主要成果:
- 开发了一种允许高精度检测SNVs的协议.
- 成功地将该方法应用于各种样本类型,包括cfDNA和液体活检.
- 证明了ARTEMIS算法在优化CRISPRdx试验中的实用性.
结论:
- 基于Cas12a的协议提供了一个精确的SNV检测方法,解决了CRISPRdx.的关键局限性.
- 这种方法可以使用随时可用的生物样本进行准确的基因测试.
- 描述的协议和算法为推进遗传诊断提供了有价值的工具.
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