有针对性的自适应性采样使得临床药物基因组学测试和全基因组基因型定型成为可能
Pamela Hui Peng Gan1, Han Lin Yeo1, Muhammad Irfan Bin Hajis1
1Nalagenetics Pte Ltd, Singapore, Singapore.
Scientific reports
|November 10, 2025
概括
有针对性的自适应抽样-长读序列 (TAS-LRS) 为药物基因组学 (PGx) 测试提供了一个全面的解决方案. 这种先进的方法可以准确地识别遗传变异,改善药物反应预测和患者安全.
科学领域:
- 基因组学就是基因组学.
- 药物基因组学 药物基因组学
- 分子生物学分子生物学
背景情况:
- 目前的药物基因组学 (PGx) 技术在解决复杂的遗传区域,检测结构变异和精确分相等式方面面临限制.
- 准确的基因变异检测对于个性化医疗至关重要,影响药物的有效性和安全性.
研究的目的:
- 开发和验证一个端到端的药物基因组学 (PGx) 工作流程,使用有针对性的自适应采样-长读序列 (TAS-LRS).
- 评估TAS-LRS的性能,以便对药物基因和全基因组基因定型进行准确的,基于单元型的测试.
主要方法:
- 一个集成的工作流程,将简化实验室协议与专门的生物信息学管道相结合,包括一个新的CYP2D6呼叫器.
- 在PromethION流细胞上利用1000ng的DNA进行三样多重复合,用于目标和非目标测序.
- 在17个参考和临床样本上验证了测定.
主要成果:
- 实现了一致的目标 (25x) 和非目标 (3x) 覆盖,使35种药物基因的准确测试成为可能.
- 对于小变异 (99.9%) 和结构变异 (>95%),已证明具有很高的一致性,相位双型和代谢表型达到97.7%和98.0%的一致性.
- 非目标读取方便了精确的全基因组赋值,优于微阵列的性能.
结论:
- TAS-LRS为临床药物基因组学 (PGx) 测试提供了一种可行和可扩展的解决方案.
- 这种长期阅读的测序方法结合了针对性和全基因组的实用性,提高了准确性和分辨率.
- 开发的工作流代表了个性化医疗和药物反应预测的重大进步.
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