CLIN CHEM LAB MED:拉丁美洲CML患者BCR-ABL1量化方案?

2020-11-30 MedSci原创 MedSci原创

慢性髓系白血病(chronic myeloid leukemia, CML)患者必须对BCR-ABL1 mRNA进行定量,RT-qPCR是世界范围内检测实验室最广泛使用的方法。

慢性髓系白血病(chronic myeloid leukemia, CML)患者必须对BCR-ABL1 mRNA进行定量,RT-qPCR是世界范围内检测实验室最广泛使用的方法。然而,由于RT-qPCR结果的存在差异较大,因此实验室间难以开展比较。为了便于实验室间的比较评估,本研究提出了一种BCR-ABL1国际量表(IS)。

实验室特异性转化因子可从世界卫生组织(世卫组织)遗传参考小组获得;然而,这种材料仅限于制造商生产和校准二级参比试剂。因此,我们开发了二级参考校准品,作为冻干细胞材料,与免疫系统保持一致。我们的目的是在18个以前协调的实验室中重新评估资本充足率,并向新的实验室宣传信息系统。

在拉丁美洲的30个实验室进行的现场试验表明,使用CF对原始BCR-ABL1/ABL1比值进行校正后,相对平均偏倚显著降低。我们还对参与的实验室进行了后续工作,每年对流程进行重新验证。研究结果支持了对CFs进行持续再验证的必要性。所有参与的实验室还接受了一个定标仪,以确定定量限制(LOQ)。其中90%可以重复检测BCR-ABL1,表明这些实验室可以报告一致的深层分子响应。此外,为了研究不同RNA输入量下BCR-ABL1检测结果的可变性,我们通过使用不同数量的RNA计算了每个实验的PCR效率。

研究结果表明,在拉丁美洲,本研究首次成功地组织了一个统一的BCR-ABL1测量平台,这对于监测资源有限地区患者的分子反应具有直接的临床效益。

原始出处:

María Sol RuizMaría Belén SánchezProgramme for Harmonization to the International Scale in Latin America for BCR-ABL1 quantification in CML patients: findings and recommendations

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    2021-06-12 kord1994
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    2020-12-02 wangbingxhy
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