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在子宫内膜癌中TP53突变和异常的p53表达:与种族和结果的关联
Karley Whelan1, Mairead Dillon2, Kyle C Strickland3
1Duke University School of Medicine, Durham, NC, USA.
Gynecologic oncology
|September 25, 2023
概括
黑人患者的TP53-突变和p53-异常子宫内膜癌 (EC) 发病率较高,与生存率较差有关. 这些分子差异可能解释了EC结果中的种族差异.
科学领域:
- 在瘤学瘤学.
- 遗传学 是一个遗传学.
- 癌症研究 癌症研究
背景情况:
- 子宫内膜癌 (EC) 呈现出种族生存差异.
- 在这些差异中TP53突变和p53表达的作用尚未完全理解.
研究的目的:
- 调查种族,TP53突变,p53表达和子宫内膜癌组织学之间的关联.
- 为了确定这些分子因素是否有助于观察到的种族生存差异在EC.
主要方法:
- 一项多中心队列研究分析了来自黑白患者的下一代测序数据,这些患者患有晚期或复发的EC.
- 卡普兰-梅尔方法估计了整体存活率 (OS) 和无进展存活率 (PFS).
- 考克斯的比例危险模型评估了种族,TP53状态,p53表达和组织学对生存的影响.
主要成果:
- 黑人患者更有可能发生TP53-突变 (71.7%vs49.7%) 和p53-异常 (71.1%vs53.2%) EC.
- 突变TP53的EC与明显更糟糕的PFS (HR 2.73) 和OS (HR 2.20) 相关.
- p53-异常EC还显示PFS (HR 2.01) 和OS (HR 1.61) 的情况更差.
- 在调整TP53和p53状态后,种族与生存结果没有独立关联.
结论:
- 黑人患者患有TP53突变和p53异常EC的患病率更高.
- 这些分子亚型与子宫内膜癌的低生存结果有关.
- 黑人患者中这些不良分子特征的频率增加可能是EC种族生存差异的关键驱动因素.
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