【摘 要】
：
目的 建立实时定量PCR(real-time quantitative PCR,RQ-PCR)法榆测急性早幼粒细胞白血病(acute promyelocytic leukemia,APL)PML/RARa融合基因转录本,评价其在APL患者诊断和
【机 构】
：
江苏大学附属人民医院实验血液学重点实验室,江苏大学附属人民医院血液科
【基金项目】
：
江苏省镇江市科技局社会发展基金;
论文部分内容阅读
目的 建立实时定量PCR(real-time quantitative PCR,RQ-PCR)法榆测急性早幼粒细胞白血病(acute promyelocytic leukemia,APL)PML/RARa融合基因转录本,评价其在APL患者诊断和微小残留病(minimal residual disease,MRD)监测中的意义.方法 设计TaqMan探针和引物,建立RQ-PCR法对长型(L-form)、短型(S-form)、变异型(V-form)不同类型PML/RARa阳性模板进行扩增,并检测6例APL患者PML/RARa融合基因转录本含量.结果 RQ-PCR法最低可检测到10个拷贝/μL的阳性模板,但重复性较差,而108～102拷贝/μL阳模的重复性良好,止常对照无扩增信号.6例初诊APL患者不同类型PML/RARa融合基因转录本绝对含量为4.27×103～3.36×105拷贝/50 ng(中位4.33×104拷贝/50 ng),ABL纠正后的相对含量为29.38%～600.53%(中位48.12%).1例患者诱导缓解后PML/RAHa融合基因转录本下降,复发时义明显升高.结论 RQ-PCR方法敏感、可靠,可用于APL患者的诊断和MRD监测.
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