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Target Cell Pre-enrichment and Whole Genome Amplification for Single Cell Downstream Characterization
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一个系统的方法,以改善下游单细胞分析的DEPArrayTM技术.

Janine Schulte1, Michael A Marciano2, Eva Scheurer1

  • 1Institute of Forensic Medicine, University of Basel, Basel, Switzerland.

Journal of forensic sciences
|July 27, 2023
PubMed
概括
此摘要是机器生成的。

这项研究优化了低模板DNA的短串重复 (STR) 分析,发现减少PCR体积可以提高峰值高度,但增加了文物. 像ESIFast和NGMDetect这样的特定套件显示出对单细胞基因型定型的前景.

关键词:
在DEPArrayTM PLUS中,您可以使用DeparrayTM Plus.在LT-DNA中.这是一个PCRPCR.在STR中,STR是STR.放大 减小 放大 减小 音量法医单细胞分析.低模板DNA是低模板DNA的意思.聚合酶连锁反应的发生.短串联重复重复的重复

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科学领域:

  • 法医科学 法医科学 法医科学
  • 分子生物学分子生物学
  • 遗传学 是一个遗传学.

背景情况:

  • 商业STR放大套件缺乏低模板DNA分析的验证.
  • 目前用于单细胞分析的方法依赖于调整PCR周期和分析值.

研究的目的:

  • 为了确定从稀释的DNA中获取信息性STR概况的最佳条件.
  • 通过使用DEPArrayTM技术在单细胞上评估这些条件.

主要方法:

  • 与四个法医STR套件进行了比较,其放大体积和DNA稀释量各不相同 (低至3.0ppg).
  • 测试了两个选择的单个/聚合白细胞和精子细胞基因定型套件.
  • 分析了峰值高度,文物生成和位置失效.

主要成果:

  • 减少PCR体积 (50%-75%) 改善了峰值高度,但增加了稀释DNA的文物.
  • 聚合6C显示,从减小体积来实现配置完整性的好处.
  • ESIFast和NGMDetect为单个/聚合细胞的共识分析提供了基础,以局部脱落作为随机事件.
  • 12.5μL放大体积产生了适当的峰值高度和口吃频率,而口吃峰值是单细胞形状中的主要工件.

结论:

  • 优化PCR条件,包括降低放大体积,可以增强低模板DNA的STR分析.
  • 特定的STR套件证明了单细胞基因定型的实用性,尽管随机事件和文物需要仔细考虑.
  • 需要进一步的研究来完善低模板DNA分析技术.