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Next-generation Sequencing03:00

Next-generation Sequencing

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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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使用单个分子实时测序进行HIV-1基因型耐药性测试.

Stéphanie Raymond1, Nicolas Jeanne2, Camille Vellas1

  • 1INSERM UMR1291 - CNRS UMR 5051 - Université Toulouse III, Toulouse Institute for Infectious and Inflammatory Diseases, Toulouse, France; CHU de Toulouse, Hôpital Purpan, Laboratoire de Virologie, Toulouse, France.

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长读单分子实时 (SMRT) 测序显示了HIV-1耐药性测试的前景,在RNA和DNA样本中准确检测突变. 这种先进的方法有助于表征基因型耐药性和哈普洛类型,以改善患者管理.

关键词:
艾滋病毒-1聚合酶随机类型的不同类型长时间阅读阅读这是下一代测序.

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科学领域:

  • 病毒学 病毒学
  • 基因组学就是基因组学.
  • 分子诊断学 分子诊断

背景情况:

  • 艾滋病毒-1耐药性测试对于有效的临床管理至关重要.
  • 下一代测序 (NGS) 方法在临床病毒学实验室中越来越多.

研究的目的:

  • 评估长读单分子实时 (SMRT) 测序用于HIV-1聚合酶基因定型的诊断性能.
  • 评估SMRT测序在特征抗逆转录病毒耐药性的实用性.

主要方法:

  • 使用桑格测序,维拉NGS和SMRT测序分析了111个潜在的临床样本 (血和白细胞丰富血液).
  • 开发了一个SMRT测序协议和生物信息学管道用于抗性推断.
  • 采用了哈普洛型和变异调用方法进行数据分析.

主要成果:

  • 在98%的血RNA样本 (病毒载量>4日志副本/毫升) 中成功测序了HIV-1聚合酶.
  • 通过SMRT测序检测到桑格测序识别的98%的抗性相关突变 (RAM).
  • 通过SMRT和Vela NGS对RAM的量化显示出强烈的相关性 (斯皮尔曼的 ρ = 0.82).

结论:

  • SMRT测序是一种高性能方法,用于在RNA和DNA临床样本中对HIV-1基因型耐药性进行表征.
  • 长读序列测定为HIV-1突变哈普洛类型和耐药性分析提供了一个新的工具.