【摘要】 目的 :研究c kit受体 (c kitR ,CD1 1 7)在急性白血病 (AL)中的表达。重点了解c kitR表达对急性非淋巴细胞白血病 (ANLL)的诊断价值及其与ANLL的临床和生物学特征的关系。方法 :采用流式细胞术 (FCM)分别检测并比较 2 4例急性淋巴细胞白血病 (ALL)和 47例ANLL初诊患者骨髓单个核细胞 (MNC)跨膜c kitR表达的阳性率及阳性水平 ,并设立 1 0例正常人骨髓标本作为阴性对照组。结果 :ALL患者的c kitR表达的阳性率及阳性水平与正常人相比无显著性差异 (P >0 .0 5)。ANLL患者的c kitR表达率及阳性水平则均显著高于正常人和ALL患者(P均 <0 .0 1 )。c kitR阳性率以M1 、M2 最高 ,M4最低。ANLL患者c kitR表达与外周血白细胞计数、肝脾肿大无关(P >0 .0 5) ,但与染色体核型异常及LDH水平增高有关 (P均 <0 .0 5)。结论 :ANLL患者的c kitR阳性表达率及阳性水平均显著高于正常人和ALL患者 ,提示c kitR可作为AL患者MIC分型诊断的髓系免疫表型依据 ,可用以协助ANLL的诊断以及ANLL与ALL的鉴别诊断更多还原

【Abstract】 Purpose:To explore the expression of human c kit receptor protein (c kit R, CD117) in acute leukemia (AL). The focus of the study was put on the value of the expression of c kit R in diagnosis for acute non lymphoid leukemia (ANLL).Methods:Flow cytometry (FCM) was used to determine the expression of the transmembrane c kit R on mononeuclear cell in bone marrow in 24 patients with acute lymphoid leukemia (ALL) and 47 patients with acute non lymphoid leukemia (ANLL). Results:There was no significant difference between expression of c kit in healthy individuals and patients with ALL. The expression of c kit in patients with ANLL was significantly higher than that of healthy individuals and that of patients with ALL ( P <0.01). The expression of c kit R was significantly higher in M 1 and M 2 than that in M 4 ( P <0.05). The positive expression of c kit of patients with higher LDH level was higher than that of those with lower LDH level.Conclusions:c kit R can be used as the immunology indicator for diagnosis for ANLL, and in distinguishing ANLL from ALL. To test c kit R may help to classify the subtype of ANLL. Expression of c kit R is correlated with level of LDH and with abnormal karyotype.更多还原