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The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
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Infinium Assay for Large-scale SNP Genotyping Applications
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使用第三代测序技术进行高分辨率HLA基因型鉴定 - - 一项多中心研究.

Stéphane Buhler1, Maja Nørgaard2, Rudi Steffensen3

  • 1Transplantation Immunology Unit and National Reference Laboratory for Histocompatibility, Department of Diagnostic, Geneva University Hospitals, Geneva, Switzerland.

HLA
|August 12, 2024
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概括

纳米孔测序为高分辨率的人类白细胞抗原 (HLA) 类型提供了一种快速而实用的方法,与下一代测序 (NGS) 具有高度一致性. 这种技术对于诊断和研究是有价值的,尽管存在一些数据处理的挑战.

关键词:
在 HLA 类型化方面.纳米类型 纳米类型已故捐赠者的输入方式供体特异性抗体的确定高分辨率的打字方式纳米孔测序的测序一个单个样本的HLA类型定型.第三代测序系统是第三代测序系统.

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科学领域:

  • 基因组学就是基因组学.
  • 分子生物学分子生物学
  • 免疫遗传学 免疫遗传学

背景情况:

  • 目前的分子HLA排型方法正在迅速发展.
  • 下一代测序 (NGS) 对于高分辨率的HLA定型至关重要,对于干细胞移植和疾病关联研究至关重要.
  • 实时PCR是固体器官分配的标准,但对于已故的捐赠者来说还不理想.

研究的目的:

  • 评估纳米孔序列测序 (TGS) 的一致性和可行性,用于在多中心临床环境中高分辨率的HLA类型.
  • 评估NanoTYPETM套件和NanoTYPERTM软件用于HLA类型的性能.
  • 将纳米孔测序结果与已建立的NGS方法进行比较.

主要方法:

  • 一项多中心临床研究,涉及381个样本.
  • 使用NanoTYPETM套件和NanoTYPERTM软件进行纳米孔测序 (TGS).
  • 在11个HLA位点 (HLA-A, -B, -C, -DRB1, -DRB3, -DRB4, -DRB5, -DQA1, -DQB1, -DPA1, -DPB1) 中分析了对应性.

主要成果:

  • 在将纳米孔测序与NGS进行比较时,为11个HLA位点实现了99.58%的一致性.
  • 证明了高质量的测序,超过97%的质量控制 (QC) 值通过.
  • 确定"检查"或"失败"的质量控制警告并不一定表明HLA类型错误.

结论:

  • 纳米孔测序是一种快速,灵活,易于实施的方法,用于诊断实验室的高分辨率HLA类型.
  • 虽然存在诸如外子覆盖和数据处理等挑战,但纳米孔测序显示出临床应用和表观遗传学和基因组学基础研究的巨大潜力.