三种PML/RARA亚型急性早幼粒细胞白血病临床特点对比分析  被引量:7

Comparison in clinical characteristics of acute promyelocytic leukemia with three PML / RARA isoforms

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作  者:王迎 魏辉 刘兵城 林冬 周春林 刘凯奇 秘营昌 王建祥 

机构地区:[1]中国医学科学院血液病医院血液学研究所,天津300020

出  处:《山东医药》2015年第27期7-10,共4页Shandong Medical Journal

基  金:"十二五"国家科技支撑计划课题(2014BAI09B12);天津市科技计划项目(12ZCDZSY17500)

摘  要:目的:分析并比较不同早幼粒细胞白血病/维甲酸受体α融合基因( PML/RARA)亚型急性早幼粒细胞白血病( APL)的临床特点。方法收集我中心2010~2014年108例初诊APL患者的临床资料,分析不同PML/RARA亚型的特点。结果最常见的PML/RARA亚型为L型(67例,62.0%),其次为S型(30例,27.8%)、V型(11例,10.2%)。 V型患者合并出血的比例(45.5%)低于L型(74.6%)和S型(86.7%),P均<0.05;V型患者中位纤维蛋白原水平(1.98 g/L)高于L型(1.18 g/L)和S型(1.05 g/L),P均<0.05。 S型患者(26.7%)较L型(7.6%)和V型(0)更易伴发FMS样酪氨酸酶3内部串联重复(FLT3/ITD)突变,P均<0.05。 S型患者CD34表达阳性率(24.1%)高于L型(6.3%)和V型(11.1%),P均<0.05。高、中、低危组维甲酸综合征发生率分别为56.3%、28.8%、17.5%( P均<0.05)。三种PML/RARA亚型维甲酸综合征的发生率差异无统计学意义。结论三种PML/RARA亚型的APL临床特点不尽相同,L型最常见,V型出血发生率较低,S型较易伴FLT3/ITD突变和CD34阳性表达。Objective To analyze and compare the clinical characteristics of acute promyelocytic leukemia ( APL) with promyelocytic leukemia ( PML)/retinoic acid receptorαgene ( RARA) different isoforms.Methods The clinical data from 108 APL patients in our center from 2010 to 2014 were collected and the PML/RARA different isoforms were ana-lyzed.Results ①The most common PML/RARA subtype was L isoform, which were 67 cases (62.0%), followed by 30 cases of S (27.8%) and 11 cases of V (10.2%) .②The bleeding was less frequently found in V isoform (45.5%) than in L isoform (74.6%) and S isoform (86.7%) (P=0.026).The median fibrinogen level in V isoform (1.98 g/L) was higher than that in L isoform (1.18 g/L) and S isoform (1.05 g/L) (P=0.024).③The prevalence of FLT3/ITD muta-tion was more frequently found in S isoform (26.7%) than in L isoform (7.6%) and V isoform (0%) (P=0.013).The positive rate of CD34 expression was higher in S isoform (24.1%) than in L isoform (6.3%) and V isoform (11.1%) (P=0.046).④The incidences of retinoic acid syndrome in the high risk group, medium risk group and low risk group were 56.3%, 28.8%and 17.5%, respectively (P=0.021).The difference of the incidence of retinoic acid syndrome in three PML/RARA isoforms was not significant (P=0.643).Conclusions The clinical characteristics of three PML/RARA iso-forms were not exactly the same.The most common subtype was L isoform, the lowest incidence of bleeding was found in V isoform, and S isoform was most likely to be accompanied by FLT3/ITD mutation and CD34 expression.

关 键 词:白血病 急性早幼粒细胞白血病 早幼粒细胞白血病基因 维甲酸受体α基因 早幼粒细胞白血病/维甲酸受体α融合基因亚型 基因突变 FMS样酪氨酸激酶3内部串联重复突变 FMS-like TYROSINE kinase 3 

分 类 号:R733.71[医药卫生—肿瘤]

 

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