Abstract

目的检测E3泛素连接酶(WWP1)在慢性淋巴细胞白血病(CLL)患者中的表达,分析其与经典预后指标TP53、CD38、IGHV突变等的相关性及预后价值。方法48例初诊CLL患者肿瘤细胞WWP1的mRNA水平通过实时定量PCR(qPCR)检测,以9名年龄匹配的正常人作为对照组,分析其临床意义。结果对照组WWP1 mRNA表达中位数为0.007(95%CI 0.005~0.010),CLL组表达水平为0.031(95%CI 0.019~0.044),两者的差异有统计学意义(P<0.001)。WWP1相对高转录者和低转录者中位诊断至第一次治疗的时间分别为24个月和35个月,两者的差异有统计学意义(P=0.022)。进一步亚组分析显示WWP1 mRNA表达水平与CD38表达和ZAP-70表达相关:CD38、ZAP-70阳性CLL患者较CD38、ZAP-70阴性患者的WWP1 mRNA表达水平显著升高(P值分别为0.012和0.029)。结论WWP1在CLL患者中存在异常高表达,而且与CLL临床预后因素ZAP-70和CD38的表达密切相关。

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