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作 者:时昊[1] 朱锋[1] 张红[1] 肖爱琴[1] 张志瑢[2] 王克强[3]
机构地区:[1]泰山医学院附属医院血液科,山东泰安271000 [2]泰山医学院附属医院血液科心,山东泰安271000 [3]泰山医学院附属医院检验中心,山东泰安271000
出 处:《中国癌症杂志》2006年第3期165-168,共4页China Oncology
基 金:山东省教育厅科技计划项目(J05L09)
摘 要:背景与目的:CD117是c-kit受体(c-kit receptor,c—kit R)膜外区分子表面抗原标志。研究表明,CD117在急性非淋巴细胞白血病(acute nonlymphoblastic leukemia,ANLL)高表达,可作为髓系白血病膜抗原标志物,对诊断ANLL有临床参考价值。但是,CD117的表达与ANLL化疗疗效的关系如何及其表达是否可作为判断ANLL预后的指标等问题尚无明确结论。本文旨在研究成人ANLL中CD117的表达与化疗疗效的关系,探讨CD117的表达与ANLL预后的关系。方法:采用流式细胞术(flow cytometery,FCM)分别检测初诊的38例急性淋巴细胞白血病(acute lymphoblastic leukemia,ALL)和8l例ANLL成人患者骨髓单个核细胞(BMMNC)CD117表达的阳性率和阳性水平。设立20例健康成人为对照组。ANLL的M3亚型采用全反式维甲酸(ATRA)治疗;其他亚型均采用DA方案或/和HA方案治疗。分析ANLL各亚型CD117表达及其化疗的完全缓解率(CR)。根据CD117表达的阳性与否,将ANLL分为CD117阳性(+)组和CD117阴性(-)组,比较两组ANLL的CR。结果:对照组、ALL和ANLL CD117阳性表达率分别为0.13%(5/38)和70%(57/81),ANLL组CD117阳性率明显高于对照组和ALL组(P=0.000)。ANLL组CD117阳性细胞水平与对照组和ALL组比较均有显著差异(P=0.000)。CD117阳性细胞水平高低依次为M3/M1、M2/M6/M4、M5;CR高低依次如下:M3:80%(8/10)、M1—M2:73.9%(31/42)、M4-M5:57.9%(11/19)。CD117(+)组和CD117(-)组CR率分别为51%(29/57)和67%(16/24)(P=0.192),两组CR率无统计学意义的差异。结论:CD117可作为急性白血病髓系免疫学标记之一。ANLL患者CD117阳性与否及其阳性水平的高低与化疗CR率之间没有必然的因果关系。CD117表达不是判断ANLL的疗效及其长期存活率的独立指标。Background and Purpose: It has been proved that CD117 may be used as an immunology marker for diagnosis of leukemia of myeloid origin. The relationship between CD117 expression and effect of chemotherapy on the patients with Acute Nonlymphoblastic Leukemia (ANLL) remains unclear. This study is to investigate the relationship between CD117 expression and the response of patients with ANLL to chemotherapy. Methods: Flow cytometery (FCM) was used to detect the positive rate and the levels of CD117 expression of the bone marrow mononuclear cell (BMMNC) from 38 patients with acute lymphoblastic leukemia(ALL) and 81 patients with ANLL, respectively. All-trans Retinoic Acid( ATRA) was taken to treat M3 type of ANLL and protocol DA and/or HA was used to treat the other types. ANLL was divided into two groups: positive(+) and negative(-) expression of CD117. At the same time we compared the difference of rates of complete remission (CR) between CD117( + ) and CD117(-) groups from ANLL after chemotherapy. Results; Positive percentage of expression of CD117 in ALL and ANLL groups were 13% and 70% respectively (P : 0.000). Positive levels of CD117 decreased successively as follows: M3/M1 ,M2/M6/M4 ,M5. CR rates of CD117( + ) and CD117( - ) groups of ANLL after chemotherapy were 51% (29/57) and 67% (16/24) ( P = 0.192), respectively. Conclusions: CD117 may serve as an immunology marker for the diagnosis of ANLL, but positive or negative expression of CD117 in ANLL was not associated with the response of the patients with ANLL to chemotherapy.
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