Abstract

目的观察伴有ETV6-RUNX1融合基因阳性的儿童急性淋巴细胞白血病(ALL)患者异基因造血干细胞移植(allo-HSCT)后融合基因表达水平的变化特征,初步探讨其临床意义。方法回顾性分析2009年5月至2016年3月行allo-HSCT的13例ETV6-RUNX1融合基因阳性儿童ALL患者的临床资料,采用实时荧光定量PCR法监测融合基因水平,并结合临床转归进行相关分析。结果13例患者中男7例,女6例,中位年龄11(5~17)岁。移植前6例阳性,移植后7例阳性(5例为移植前阳性者,2例为新增者);其移植后基因中位转阳时间为137(28~270)d,第1次基因阳性中位表达水平为0.034%(0.004%~0.061%),从基因第1次阳性至血液学复发间隔的中位时间为196(28~666)d,其中4例血液学复发(均死亡),中位复发时间为294(104~803)d。结论移植前伴有ETV6-RUNX1融合基因阳性的儿童ALL患者移植后再次阳性的概率较高;移植后融合基因阳性者预后差。

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