低风险子宫内膜癌患者的整体外基因组测序与孤立的局部复发
Shuhua Zheng1, Yirong Liu1, Paul D Kinkopf1
1Department of Radiation Oncology, Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, IL 60611, USA.
Cancer treatment and research communications
|March 15, 2025
概括
低风险子宫内膜癌 (EC) 患者跳过辅助放射治疗 (RT) 可能会局部复发. CTNNB1基因变异是预测这些EC患者复发的生物标志物.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 分子病理学分子病理学
背景情况:
- 不接受辅助放射治疗 (RT) 的低风险子宫内膜腺癌 (EC) 患者中,有一小部分患者经历了局部复发.
- 这些特定EC病例的分子特征尚不清楚.
研究的目的:
- 调查临床低风险子宫内膜癌患者的分子概况,这些患者在不使用辅助RT后经历了孤立的局部复发.
- 确定潜在的生物标志物,以预测该患者群体中复发的可能性.
主要方法:
- 整体外体序列测序 (WES) 在22名患有孤立局部复发的患者中进行.
- 分析包括与"癌症基因组图谱"宫内膜癌 (TCGA-UCEC) 数据集的比较.
- 用GOG-99标准进行风险分层.
主要成果:
- 大多数复发病例属于无特异分子谱 (NSMP) 组 (91%).
- 在22.7%的患者中发现了CTNNB1的改变,并且在独立的TCGA队列中与更糟糕的无进展生存相关 (58%的1级NSMP病例).
- 其他经常发生变化的基因包括FGFR2,PTEN和KRAS.
结论:
- NSMP分子组在临床低风险的EC患者中普遍存在,这些患者有孤立的局部复发.
- 在这个队列中,CTNNB1的变化作为一个验证的预后生物标志物.
- 识别CTNNB1变化可能有助于指导EC患者的辅助治疗决策.
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