在急性骨髓性白血病的异构造血细胞移植中,具有超二倍体复杂型的急性髓性白血病
Xavier Poiré1, Myriam Labopin2,3,4,5, Emmanuelle Polge2,3,4,5
1Section of Hematology, Institut Roi Albert II, Cliniques Universitaires St-Luc, Brussels, Belgium. Xavier.Poire@saintluc.uclouvain.be.
Bone marrow transplantation
|December 13, 2023
概括
纯高二倍化型 (pHDK) 急性髓性白血病 (AML) 显示,与其他复杂的型AML相比,在异构造血细胞移植 (allo-HCT) 后的结果明显更好. 这种独特的AML亚型需要进一步研究,以定制治疗策略.
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:
- 全基性造血细胞移植 (allo-HCT) 是急性骨髓性白血病 (AML) 复杂型 (CK) 的主要整合疗法.
- 在AML中,复杂型 (CK) 是异质的,并且在合金HCT后,纯超型型 (pHDK) 的预后影响需要澄清.
- 将pHDK与其他CK亚型区分开来,可能会揭示移植后不同的临床行为和结果.
研究的目的:
- 为了调查纯超二倍体型 (pHDK) 的预后意义在接受allo-HCT.CT的AML患者中.
- 为了比较pHDK AML和AML与CK组 (HDK+) 内的其他细胞遗传异常之间的结果.
主要方法:
- 从EBMT注册表中对236名AML患有高二倍体型 (HDK) 的患者进行了回顾性分析.
- 患者被分为纯 HDK (pHDK,n=95) 和具有其他异常的 HDK (HDK+,n=141).
- 群体间的无白血病生存 (LFS),总生存 (OS),复发发病率 (RI) 和无GvHD/无复发生存 (GRFS) 的比较.
主要成果:
- 两年的LFS为pHDK的50%,为HDK+的31% (p=0.003);两年的OS为pHDK的57%和HDK+的36% (p=0.007).
- 在pHDK中,2年RI显著较低 (22%) 与HDK+ (44%) 相比 (p=0.001).
- 2年后的GRFS为pHDK的36%,而HDK+的21% (p=0.01),pHDK在多变量分析中显示出更好的生存率和更低的复发率.
结论:
- 纯超化型 (pHDK) AML代表了一个独特的细胞遗传实体,在合金-HCT后预后明显更好.
- 与HDK+ AML相比,pHDK AML患者的LFS,OS,GRFS有所改善,复发率降低.
- 这些发现表明,pHDK AML可能受益于移植后不同的治疗策略.
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