协调分子分类;评估一个单一测试ProMisE NGS工具的评估
Amy Jamieson1, Melissa K McConechy2, Amy Lum3
1Department of Gynecology and Obstetrics, Division of Gynecologic Oncology, University of British Columbia, Vancouver, Canada.
Gynecologic oncology
|June 15, 2023
概括
一个新的基于DNA的下一代测序 (NGS) 测试,ProMisE NGS,准确地分类子宫内膜癌 (EC) 的分子亚型. 这种方法为及时诊断和治疗规划提供了一种可行且一致的方法.
科学领域:
- 在瘤学瘤学.
- 分子病理学分子病理学
- 基因组学就是基因组学.
背景情况:
- 子宫内膜癌 (EC) 的分子亚型对患者管理至关重要,但目前的方法面临着不一致的吸收和治疗延迟的挑战.
- 已建立的ProMisE分类器需要多个分子测试 (POLE突变,MMR,p53 IHC),通常分别进行,从而妨碍及时诊断.
研究的目的:
- 评估一种新的单一测试,基于DNA的下一代测序 (NGS) 分类器ProMisE NGS,用于子宫内膜癌的分子亚型.
- 为了比较ProMisE NGS与原来的ProMisE分类器的一致性和预后值.
主要方法:
- 从FFPE EC样本中提取了DNA,这些样本之前通过原来的ProMisE方法进行了分类.
- 一个有针对性的NGS小组评估了POLE突变,TP53突变 (取代p53 IHC) 和微卫星不稳定性 (MSI) (取代MMR IHC).
- 使用一致度指标和生存分析对类型的分配进行了比较.
主要成果:
- 在164个EC案例中,ProMisE NGS分类器与原来的ProMisE分类器具有很高的一致性 (97%准确率,kappa 0.96).
- ProMisE NGS准确地回顾了原始分类器的预后值,显示了亚型之间的显著生存差异.
- 使用ProMisE NGS.使用匹配的活检和子宫切除样本之间观察到100%的一致性.
结论:
- ProMisE NGS是一种可行的分子分类工具,用于使用标准的FFPE组织对子宫内膜癌进行分类.
- 这种单一测试的NGS方法显示出高一致性,并保留了预后价值,在初始诊断时促进了早期的分子分类.
- ProMisE NGS有可能通过及时和准确的亚型化来简化EC管理并改善患者的治疗结果.
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