将基因表达与复发突变相结合,改善了急性髓性白血病的年龄分层风险预测
Mobina Shrestha1, Salina Dahal2, Asis Shrestha3
1USACS Sentara Albemarle Medical Center Elizabeth City North Carolina USA.
EJHaem
|March 13, 2026
概括
将基因表达与突变相结合,可以改善急性髓性白血病 (AML) 风险预测,特别是在老年人中. 这增强了对完全缓解和生存结果的预后模型.
科学领域:
- 血液学 血液学 血液学
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 患有急性髓性白血病 (AML) 的老年人面临较差的结果.
- 目前的遗传风险模型不足以解决与年龄相关的预后因素.
- 需要新的模型来整合分子特征与年龄,以便更好地预测.
研究的目的:
- 为了调查是否与突变结合亡和p53相关基因表达改善了AML患者完全缓解 (CR) 和2年整体存活 (OS) 的预测.
- 评估年龄对分子特征预后价值的影响.
- 为AML开发更准确的风险分层模型.
主要方法:
- 使用了BeatAML2数据集 (852名患者的RNA-seq数据).
- 将患者分为四个年龄组 (18-30,30-45,45-60,60岁以上).
- 结合了12个具有五个关键突变 (TP53,NPM1,FLT3,RUNX1,ASXL1) 的亡/p53基因的联合表达数据,以使用XGBoost,随机森林和物流回归模型预测CR和2年OS.
主要成果:
- 添加基因表达显著改善了所有CR和2年OS模型的预测性能.
- XGBoost 和 Random Forest 在 AUC 和重新分类方面表现出显著的改善.
- TP53突变是OS最强的不良标志物,而NPM1提高了CR率,但没有提高生存率. 在老年患者 (60+) 中,CHEK2表达对生存至关重要.
结论:
- 将基因表达与突变结合起来,可以提高AML风险预测的准确性,特别是在老年人中.
- 这些发现支持将基于表达的特征纳入临床遗传风险模型.
- 未来的验证是有必要的,以确认这些增强的预测能力.
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