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作 者:邬志伟[1] 胡超杰[1] 徐修才[1] 伍权[1] 李庆[1] 张爱梅[1] 孙自敏[2] 刘欣[2]
机构地区:[1]安徽省立医院中心实验室,合肥230001 [2]安徽省立医院血液科,合肥230001
出 处:《白血病.淋巴瘤》2014年第7期413-415,419,共4页Journal of Leukemia & Lymphoma
摘 要:目的 探讨核心结合因子相关急性髓系白血病(CBF-AML) RUNX1-RUNXT1、CBFB-MYH11 AML患者形态学、遗传学、免疫表型、分子生物学(MICM)特点,为临床提供更有价值的诊断参考.方法 选取RUNX1-RUNXT1 AML 98例,CBFB-MYH11 AML 30例,进行MICM、FLT3-ITD突变基因检测.结果 RUNX1-RUNXT1与CBFB-MYH11患者的FLT3-ITD突变表达率都较低,分别为8%(8/98)、7%(2/30),差异无统计学意义(P>0.05).RUNX1-RUNXT1患者免疫表型CD34 93%(91/98)、CD117 89%(87/98)、CD19 39%(38/98)、CD15 11%(11/98),附加染色体异常高达41%(40/98);CBFB-MYH11患者CD34 33%(10/30)、CD117 23 %(7/30)、CD11b 67%(20/30)、CD14 27%(8/30)、CD64 27%(8/30),附加染色体异常仅有7%(2/30);两者的CD7均较低,分别为8%(8/98)、7%(2/30),FLT3-ITD突变基因阳性CBF-AML伴CD7较高(40%,4/10).结论 两种CBF-AML有不同的分子生物学特点,但二者FLT3-ITD和CD7均表达较低,且有一定相关性,部分解释了CBF-AML预后较好的原因.为个体化治疗研究提供了一定的参考依据.Objective To evaluate the value of the characteristics of detections in core binding factor acute myeloid leukemia (CBF-AML) with RUNX1-RUNXT1 or CBFB-MYH11 rearrangement.Methods Morphological,flow cytometric immunophenotyping,G-binding technique and FLT3-ITD mutation gene were performed in one hundred AML with RUNX1-RUNXT1 and thirty AML with CBFB-MYH11.Results The values of FLT3-ITD mutation in the AML with RUNX1-RUNXT1 and CBFB-MYH11 rearrangement were not significantly different [8 % (8/98),7 % (2/30),respectively].Other detections,in the CBF-AML with RUNX1-RUNXT1,CD34 93 % (91/98),CD117 89 % (88/98),CD19 39 % (38/98),CD15 11% (11/98),additional chromosomal abnormalities 41% (40/98),in the CBF-AML with CBFB-MYH11,CD34 33 % (10/30),CD117 23 % (7/30),CD11b67 % (20/30),CD1427 % (8/30),CD6427 % (8/30),additional chromosomal abnormalities (6 %).CD7 were low in both [8 % (8/98),7 % (2/30),respectively],but in CBF-AML with FLT3-ITD mutation was high [40 % (4/10)].Conclusions Through the above comparison,two CBF-AML detection results are significantly different,suggesting that the mechanisms underlying the cause of leukemia is a different developmental trajectory.FLT3-ITD and CD7 are low in the two CBF-AML,that are associated the favorable prognosis of CBF-AML,and provides some reference for the study of individual treatment.
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