在TRACERx中非小细胞肺癌转移的演变
Maise Al Bakir1,2, Ariana Huebner1,2,3, Carlos Martínez-Ruiz1,3
1Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK.
Nature
|April 12, 2023
概括
在非小细胞肺癌 (NSCLC) 中研究了转移性疾病,这是癌症死亡的主要原因. 与吸烟和小瘤相关的早期转移差异通常被标准采样方法遗漏.
科学领域:
- 癌症学
- 癌症的演变
- 基因组学
背景情况:
- 转移性疾病导致大多数癌症死亡.
- 了解转移性非小细胞肺癌 (NSCLC) 的演变至关重要.
研究的目的:
- 分析转移性NSCLC的纵向演变.
- 为了比较转移性和非转移性瘤.
- 确定影响早期转移分歧和复发模式的因素.
主要方法:
- 从421名患者的126个转移性NSCLC的长度进化分析.
- 与144个非转移性瘤进行比较.
- 模拟模拟转移差异的模型.
- 分析主要瘤采样策略.
主要成果:
- 在25%的病例中出现早期转移性分离,在吸烟者和较小的瘤中增加.
- 一个区域的抽样错误地将83%的晚期分歧案件归类为早期.
- 在32%的病例中发现与胸外复发相关的多克隆传播.
- 淋巴结转移表明转移的可能性,不一定是随后的复发.
结论:
- 选择在原发性瘤中的转移性克隆进化中起着关键作用.
- 单克隆与多克隆播种影响复发部位.
- 目前的查方法对早期瘤有局限性.
- 在复发之前需要向转移播种子克隆.
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