Clinical implication of minimal residue disease monitoring by WT1 gene detection and flow cytometry in myelodysplastic syndrome with allogeneic stem cell transplantation

X. S. Zhao, X. D. Mo, Y. Hong, Y. J. Chang, Y. Z. Qin, Y. R. Liu, Y. Y. Chen, X. H. Zhang, L. P. Xu, X. J. Huang

Research output: Contribution to journalArticlepeer-review

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Abstract

目的: 探讨骨髓增生异常综合征(MDS)患者在接受异基因造血干细胞移植(allo-HSCT)后基于WT1基因及流式细胞术(FCM)监测微小残留病(MRD)的意义。 方法: 分别采用实时定量聚合酶链反应(RQ-PCR)和8色FCM检测2011年2月至2015年10月于北京大学人民医院接受allo-HSCT的MDS患者移植前及移植后骨髓中WT1基因表达及异常免疫表型,并与临床结果进行相关分析。 结果: 92例患者中,40例(48.2%)移植后WT1阳性,9例(10.8%)FCM阳性(FCM检测骨髓表型异常髓系幼稚细胞≥0.01%),27例(29.3%)患者MRDco阳性[连续2次WT1≥0.6%(间隔2周)或连续2次FCM阳性(间隔2周)或同一骨髓标本WT1≥0.6%且FCM阳性]。单因素分析显示移植后FCM阳性、MRDco阳性与复发相关(P<0.001,P=0.017)。FCM(+)、FCM(-)组移植后2年累积复发率(CIR)分别为66.7%、1.2%(P<0.001);MRDco(+)、MRDco(-)组移植后2年CIR分别为23.0%、1.6%(P=0.004)。移植后WT1、FCM、MRDco预测复发的敏感性均为66.7%,特异性分别为59.0%、96.4%、74.7%。 结论: FCM和基于WT1/FCM的MRDco可作为MDS患者MRD监测的有效指标;基于MRDco标准进行干预可降低移植后复发率。.

Original languageEnglish
Pages (from-to)998-1003
Number of pages6
JournalZhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi
Volume39
Issue number12
DOIs
StatePublished - 14 Dec 2018

Keywords

  • Allogeneic hematopoietic stem cell transplantation
  • Flow cytometry
  • Minimal residue disease
  • Myelodysplastic syndromes
  • WT1 gene

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