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Blood:确诊时,高NPM1突变等位基因负担预示新发AML患者预后不良

2018-05-08 MedSci MedSci原创

中心点:确诊时高NPM1突变型等位基因负担可预测新发AML临床预后不良。摘要:携带突变型NPM1的急性髓系白血病(AML)是一种在2016年修订的WHO分类中新发现的独立实体类型,与预后良好相关。虽然既往研究都是以二元方式对NPM1进行评估,但目前对其突变等位基因对诊断的意义仍知之甚少,共突变(除了FLT3)的效应也未进行广泛评估。Sanjay S. Patel等人对109位携带NPM1的新发AM

中心点:

确诊时高NPM1突变型等位基因负担可预测新发AML临床预后不良。

摘要:

携带突变型NPM1的急性髓系白血病(AML)是一种在2016年修订的WHO分类中新发现的独立实体类型,与预后良好相关。虽然既往研究都是以二元方式对NPM1进行评估,但目前对其突变等位基因对诊断的意义仍知之甚少,共突变(除了FLT3)的效应也未进行广泛评估。

Sanjay S. Patel等人对109位携带NPM1的新发AML患者的靶向测序数据进行回顾性分析,对NPM1基因突变等位基因频率(VAF)、共突变和患者预后的临床参数的潜在意义进行评估。

研究人员发现携带高NPM1 VAF(前1/4)的患者,与其他NPM1突变类型患者相比,总体存活期和无事件存活期均明显缩短(中位值 12.1 vs 未达到,p<0.0001;7.5 vs 65.44,p<0.0001)。无论采用单变量还是多变量分析,高NPM1 VAF均显著降低首次缓解即采用干细胞移植治疗和携带突变型DNMT3A的患者的预后(p=0,0004和p<0.0001)。

本研究结果提示NPM1突变对新发AML患者的预后效应或许受相关的突变等位基因负担影响。

原始出处:

Sanjay S. Patel,et al.High NPM1 mutant allele burden at diagnosis predicts unfavorable outcomes in de novo AML.Blood  2018  :blood-2018-01-828467;  doi: https://doi.org/10.1182/blood-2018-01-828467

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    2018-05-18 医者仁心
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    2018-05-10 zhaohui6736
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