IJLH:通过RT- qPCR对p210 BCR‐ABL1转录本进行定量的外部质量评估的结果和建议

2019-06-02 不详 网络

在临床检测中,外部质量评估(EQA)是通过RT‐qPCR对p210 BCR‐ABL1转录本的分析检测过程进行质量保证的必要工具。作为EQA提供商,国家临床实验室中心首次在中国组织开展了p210 BCR‐ABL1检测EQA方案,以发现存在的问题,确保p210 BCR‐ABL1检测的可靠性。 利用重装RNA技术,我们首先构建了pACYC‐MS2‐p210和CG重组质粒,并表达了p210和CG铠装

临床检测中,外部质量评估(EQA)是通过RTqPCRp210 BCRABL1转录本的分析检测过程进行质量保证的必要工具。作为EQA提供商,国家临床实验室中心首次在中国组织开展了p210 BCRABL1检测EQA方案,以发现存在的问题,确保p210 BCRABL1检测的可靠性。

利用重装RNA技术,我们首先构建了pACYCMS2p210CG重组质粒,并表达了p210CG铠装RNA,其封装片段为p210 BCRABL1融合基因(FG)4个常见对照基因(CG)转录本。利用这些重装RNA,我们制备了冻干p210质量控制(QC)样品板,并对中国参与实验室的检测性能进行了评估。

66个参与实验室中,发现原始p210 BCR-ABL1的变异系数(CV%)变化很大,基本上从60.0%到100.0%不等。在24个国际规模(IS)实验室中,结果的CV%从82.4%降至61.6%,实验室在中位数的2倍,3倍和5倍内的百分比从78.2%增加到87.0%,用实验室特异性转换因子(CF)转换后,分别为92.1%至80.1%,89.4%和97.2%;然而,由于RT-qPCR程序的组分发生变化,在实验室中也观察到转化不良的结果。在EQA中也发现了假阴性和假阳性结果。

EQA中发现了p210 BCRABL1检测中存在的各种问题。通过解决存在的问题,可以提高p210 BCRABL1检测的性能,保证我国实验室诊断能力的强大。

原始出处:

Yu Fu, Rui Zhang ,External quality assessment of p210 BCRABL1 transcript quantification by RTqPCR: Findings and recommendations

本文系梅斯医学(MedSci)原创编译整理,转载需授权!

 

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    2020-01-08 mjldent
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    2019-12-10 tulenzi
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    2019-06-04 Tommy1950
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    2019-06-04 lvliquan

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