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Comparative Lesions Analysis Through a Targeted Sequencing Approach
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序列性瘤分子剖析识别可能的生殖系变异.

Ira L Kraft1, Hatice Basdag2, Ashwin Koppayi3

  • 1Section of Hematology/Oncology, Department of Pediatrics, The University of Chicago, Chicago, IL; Section of Hematology/Oncology, Department of Medicine, The University of Chicago, Chicago, IL; Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD.

Genetics in medicine : official journal of the American College of Medical Genetics
|December 6, 2023
PubMed
概括

从瘤分析中识别可能的生殖系DNA变异可以预测患者的结果. 血造性恶性瘤患者与生殖系变异显示较差的生存率.

关键词:
临床下一代测序的临床测序.细菌癌症基因组学 细菌癌症基因组学遗传性造血性恶性瘤 遗传性造血性恶性瘤序列性瘤概况分析 (Sequential Tumor Profiling) 是一种方法,可以对瘤进行分析.瘤分子概况分析

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科学领域:

  • 遗传学 是一个遗传学.
  • 在瘤学瘤学.
  • 生物信息学是一种生物信息学.

背景情况:

  • 生殖系DNA变异在遗传性癌症综合征中起着至关重要的作用.
  • 从体突变区分生殖线对于准确的诊断和血液形成性恶性瘤 (HMs) 的风险评估至关重要.
  • 序列瘤分析为识别生殖系变异提供了一个潜在的途径.

研究的目的:

  • 开发和验证一种方法来识别可能的生殖线DNA变异,使用HMS患者的顺序瘤分析数据.
  • 评估在HM患者中发现的生殖系变异的临床意义.

主要方法:

  • 从下一代测序数据中的变异性基因频率计算的变异系数.
  • 排名变异的可能性是1-5级的生殖系.
  • 在1135名HM患者中分析了1336个基因的序列数据.

主要成果:

  • 在一项试点研究中,89%的1级变异被证实是生殖系;其中22%是已知的遗传性HM风险基因的病原体.
  • 在1135名HM患者中,16%的独特变异发生在遗传的HM基因中,其中15%是有害的.
  • 具有高等级生殖线等位基因 (1/2级) 的患者的生存率降低,死亡率增加.

结论:

  • 顺序瘤分析可以有效地预测HMs的生殖系变异状态.
  • 患有可能生殖系变异的患者与没有这种变异的患者相比,面临着较差的临床结果.