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[低风险急性髓性白血病与复发的分子特征和预后分析]

Yun-Fei Gao¹, Ye-Hui Tan¹, Long Su¹

¹Department of Hematology, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China.

Zhongguo shi yan xue ye xue za zhi

|January 8, 2026

概括

复发的低风险急性髓性白血病 (AML) 通常会获得FLT3-ITD突变并失去RAS表达. 高龄和DNMT3A突变使预后恶化,而造血干细胞移植 (HSCT) 提高了生存率.

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:

低风险的急性髓性白血病 (AML) 可以复发,需要对其在复发时的分子特性进行调查.
了解影响再治疗疗效和预后的因素对于改善患者的治疗结果至关重要.

研究的目的:

在复发后研究低风险AML的分子变化.
确定影响再治疗疗效和低风险AML复发的整体存活率的临床和分子因素.

主要方法:

复发低风险AML的31名患者的回顾性分析.
复发前后基因突变的比较.
重新治疗疗效的评估和单变量/多变量生存分析.

主要成果:

获得的FLT3-ITD突变在复发后很常见;在诊断时的RAS突变容易失去表达.
复发后的OS中位数为349天;与非HSCT相比,HSCT显著改善了生存率 (P=0.001).
年龄≥60岁和DNMT3A突变分别是缓解和OS的独立不良因素;HSCT是OS的保护因素.

结论:

复发的低风险AML表现出明显的分子变化,包括FLT3-ITD获取和RAS损失.
年龄和DNMT3A突变是不良的预后因素,而HSCT提供了显著的生存益处.

关键词:

低风险急性髓性白血病;复发;造血干细胞移植;预后.

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