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细胞周期蛋白A在儿童急性白血病患者中的表达及意义

Expression of cyclin A in childhood acute leukemia and its significance
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摘要 目的探讨细胞周期蛋白A(Cyclin A)在儿童急性白血病患者中的表达及临床意义。方法应用Western blot方法检测47例初诊急性白血病(AL)患儿和33例非血液系统恶性疾病患儿(对照组)骨髓单个核细胞Cyclin A的表达。结果47例AL患儿Cyclin A表达水平(0.38±0.20)显著高于对照组(0.03±0.15)(P〈0.01);急性淋巴细胞白血病(ALL)高危组(HR—ALL)患儿Cyclin A表达水平(0.62±0.38)高于ALL标危组(SR—ALL)(0.33±0.33)(P〈0.05);33例外周血WBC≥50×10^9/L患儿组和14例外周血WBC〈50×10^9/L患儿组Cyclin A的表达水平分别为0.64±0.36和0.39±0.38,差异有统计学意义(P〈0.05);Cyclin A表达阳性的18例患儿中8例完全缓解(CR),CR率44.4%,较阴性患儿CR率(100%)低(P〈0.01)。结论Cyclin A参与儿童急性白血病的发生、发展。 Objective To investigate the expression of cyclin A protein in childhood acute leukenfia (AL) and its significance. Methods By using Western blotting analysis, eyelin A protein in bone marrow mononnelear cells from 47 newly diagnosed AL children and 33 non-hematological malignancy children was detected. Results The expression of cyclin A in AL group (0.38 ± 0.20) was higher than that in control group (0.03 ± 0.15 ) (P 〈 0.01 ). The expression of eyelin A in high risk acute lymphocyte leukemia (ALL) group (HR-ALL) (0.62 ± 0.38)was higher than that in standard risk ALL group (SR-ALL) (0.33 ±0.33 ) (P 〈 0.05). The expression of cyclin A in WBC ≥50 × 10^9/L group and in WBC 〈 50 × 10^9/L group was (0.64 ±0.36) and (0.39 -0.38), respeetively(P 〈0.05). Eight (44.4%) out of 18 patients with positive eyclin A expression achieved complete remission(CR). The CR rate was lower than that of patients with negative cyclin A expression ( 100% ) ( P 〈 0.01 ). Conclusions The higher expression of eyelin A may predict a poor prognosis for childhood ALL.
出处 《中华血液学杂志》 CAS CSCD 北大核心 2008年第11期746-748,共3页 Chinese Journal of Hematology
关键词 细胞周期蛋白A 儿童 白血病 急性 Cyclin A Children Leukemia, acute
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