追踪白血病残留物:剖析慢性髓性白血病 (CML) 中CD26+干细胞和细胞外BCR::ABL1转录之间的反向关系
Silvia Mutti1,2, Alessia Cavalleri1,2, Anna Sicuranza3
1Unit of Blood Diseases and Bone Marrow Transplant, Department of Clinical and Experimental Sciences (DSCS), Università di Brescia, ASST Spedali Civili, Brescia 25123, Italy.
Stem cells translational medicine
|November 24, 2025
概括
慢性髓性白血病 (CML) 的持续性与CD26+白血病干细胞 (LSC) 有关. 它们的水平与细胞外囊中的BCR::ABL1转录相反相关,这表明CML的新监测策略.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 慢性髓性白血病 (CML) 是由白血病干细胞 (LSCs) 维持的,特别是CD26+子集.
- 了解LSC动态对于有效的CML管理和实现深度分子缓解至关重要.
研究的目的:
- 研究CML患者细胞外囊丰富分泌体 (EVES) 中循环中的CD26+LSCs和BCR::ABL1转录之间的相关性.
- 探索EVES作为CML监测的非侵入性生物标志物的潜力.
主要方法:
- 分析了44名CML患者的血样本.
- 隔离了细胞外囊泡,以创建一个EVES.
- 在EVES中的BCR::ABL1转录水平使用数字PCR量化.
- 确定了CD26+LSC的数量. 确定了CD26+LSC的数量.
主要成果:
- 在CD26+LSC数量和EVES BCR::ABL1水平之间观察到一个反向相关性,特别是在深分子响应者 (DMR) 中.
- 在无治疗缓解期 (TFR) 患者中发现CD26+LCS升高.
- 在接受治疗的患者中检测到更高的EVES BCR::ABL1水平.
结论:
- 在CD26+LSC群体和BCR::ABL1转录通过CML中的细胞外囊泡释放之间存在着不同的动态.
- 这些发现表明,EVES BCR::ABL1水平和CD26+ LSC数量可以作为CML预后和监测治疗反应的补充生物标志物.
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