纵向单细胞分析揭示了耐治疗的干细胞和巨细胞,这些细胞具有对儿科AML的潜在治疗方法
Denis Ohlstrom1,2, Mojtaba Bakhtiari3,4, Hope Mumme5
1Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA.
Leukemia
|September 10, 2025
概括
儿童急性髓性白血病 (pAML) 亚型,具有耐治疗细胞,表明结果不佳. 针对这些耐药细胞的新型疗法,如博尔特佐米布和维内托克拉克斯,有望改善风险分层和患者清除.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 遗传学 是一个遗传学.
背景情况:
- 儿科急性髓性白血病 (pAML) 是一种复杂的癌症,具有多种不同的遗传驱动因素.
- 目前的风险分层方法不足,导致30%的标准风险患者复发.
研究的目的:
- 使用单细胞分析深入描述pAML异质性.
- 为了确定与糟糕的结果和治疗耐药性相关的爆细胞概况.
主要方法:
- 分析了来自95名pAML患者和11名健康对照的708,285个细胞.
- 在诊断,诱导后和复发时进行纵向细胞丰度分析.
- 活体药物敏感性测试和体外验证.
主要成果:
- 在RUNX1::RUNX1T1,FLT3-ITD和CBFB::MYH11亚型中确定了耐治疗的类似干细胞,与预后不佳有关.
- 在RUNX1::RUNX1T1耐药细胞中观察到T细胞耗尽,并在FLT3-ITD耐药细胞中增强抗氧化剂代谢.
- 发现了一种与耐药性和不良结果相关的新型巨细胞类pAML.
- 博尔特佐米布,波纳提尼布和威尼托克拉克斯显示出针对耐药性爆发的特定功效.
结论:
- 未成熟和成熟的pAML亚型作为改善风险分层的潜在生物标志物.
- 已确定的向疗法可以增强治疗后耐药的pAML细胞的清除.
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