对ICC和WHO分类的比较分析揭示了AML-MR和MDS/AML之间的分子和临床融合
Yanhui Wei1, Xin Yan1, Jiale Ma2
1Department of Hematology, Zhongda Hospital, School of Medicine, Southeast University, Institute of Hematology Southeast University, Nanjing, China.
Hematological oncology
|February 24, 2026
概括
骨髓质形成相关的急性骨髓性白血病 (AML-MR) 和骨髓质形成综合征/AML (MDS/AML) 具有共同的分子特征和生存结果,表明生物连续性. 一个新的风险模型改善了这些高风险白血病患者的预后分层.
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:
- 冲突的2022世卫组织和ICC分类导致骨髓质疏松症相关的急性骨髓质白血病 (AML-MR) 和骨髓质疏松症候群/骨髓质疏松症 (MDS/AML) 的诊断不确定性.
- 了解AML-MR和MDS/AML之间的分子和临床区别和重叠对于准确的诊断和治疗至关重要.
研究的目的:
- 为了比较AML-MR和MDS/AML的分子和临床特征,以澄清它们之间的关系.
- 在这些患者群体中评估现有的风险分层系统 (IPSS-R,IPSS-M,ELN 2022) 的预后性能.
- 开发和验证一种新的综合风险分层模型,以提高预后准确度.
主要方法:
- 一项多中心追溯研究,对来自中国队列的568名AML和75名MDS/AML患者进行了多中心追溯研究.
- 在两个独立的公共队列中进行验证 (n=524).
- 通过WHO和ICC标准定义的各个子组的分子特征 (突变,型),治疗反应和整体存活率 (OS) 的比较.
主要成果:
- AML-MR和MDS/AML患者表现出重叠的分子形状,包括频繁的ASXL1和TP53突变和复杂的核型.
- 许多AML-MR患者的生存期比非AML-MR患者要短得多,但结果与MDS/AML相似.
- 现有的风险模型 (IPSS-R,IPSS-M,ELN 2022) 显示出有限的预后价值.
- 开发的修改后的风险分层模型有效区分了三个风险组,具有不同的生存结果,在外部队列中得到验证.
结论:
- AML-MR和MDS/AML代表着具有共同特征的生物连续,支持ICC分类更新.
- 新的综合风险模型为AML-MR和MDS/AML患者提供了改进的预后分层.
- 这个模型可以帮助高风险白血病患者的临床决策.
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