新技术新方法

荧光PCR-毛细管电泳法在人运动神经元存活基因1和运动神经元存活基因2检测中的应用

  • 李少英 ,
  • 何健淳 ,
  • 赵耿烨 ,
  • 冼嘉嘉 ,
  • 黄玲玲 ,
  • 何文智 ,
  • 马晓燕 ,
  • 张慧敏 ,
  • 张敏聪 ,
  • 黎青
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  • 广州医科大学附属第三医院妇产科,广东省产科重大疾病重点实验室,妇研所实验部 (广州 510150 )

收稿日期: 2023-05-12

  网络出版日期: 2024-01-08

基金资助

广东省基础与应用基础研究基金项目(2021A1515220152)

PCR-based capillary electrophoresis(PCR/CE) for genetic detection of SMN 1 and SMN 2

  • Shaoying LI ,
  • Jianchun HE ,
  • Gengye ZHAO ,
  • Jiajia XIAN ,
  • Lingling HUANG ,
  • Wenzhi HE ,
  • Xiaoyan MA ,
  • Huimin ZHANG ,
  • Mincong ZHANG ,
  • Qing. LI
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  • Department of Obstetrics and Gynecology,Guangdong Provincial Key Laboratory of Major Obstetric Diseases,Experimental Department of Obstetrics and Gynecology Institute,the Third Affiliated Hospital of Guangzhou Medical University,Guangzhou 510150,China

Received date: 2023-05-12

  Online published: 2024-01-08

摘要

目的 建立荧光PCR-毛细管电泳(PCR/CE)方法,检测人运动神经元存活基因1(SMN1)和运动神经元存活基因2(SMN2),评价其性能。 方法 采用PCR/CE方法和SMA基因诊断的金标准多重连接探针扩增技术(multiplex ligation-dependent probe amplification, MLPA),同步盲法对样本进行检测。以MLPA检测结果为标准,检测PCR/CE方法的性能。 结果 本次共纳入样本336例,其中纯合缺失型50例(14.9%),杂合缺失型65例(19.3%),无缺失型221例(65.8%)。PCR/CE方法检出SMN1SMN2拷贝数为0、1、2、3、≥ 4的结果与MLPA方法检测结果完全一致。 结论 PCR/CE方法用于SMA相关的基因检测,可准确检出SMN1和SMN2基因第7号外显子和第8号外显子拷贝数(0、1、2、3、≥ 4)。

本文引用格式

李少英 , 何健淳 , 赵耿烨 , 冼嘉嘉 , 黄玲玲 , 何文智 , 马晓燕 , 张慧敏 , 张敏聪 , 黎青 . 荧光PCR-毛细管电泳法在人运动神经元存活基因1和运动神经元存活基因2检测中的应用[J]. 实用医学杂志, 2023 , 39(23) : 3127 -3131 . DOI: 10.3969/j.issn.1006-5725.2023.23.018

Abstract

Objective To establish a PCR-based capillary electrophoresis (PCR/CE) to detect Survival Motor Neuron 1 (SMN1) and Survival Motor Neuron 2 (SMN2) genes and to evaluate its performance. Methods PCR/CE and Multiplex Ligation-dependent Probe Amplification (MLPA) for SMA gene diagnosis were used to blindly test the samples in sync. The performance of PCR/CE was assessed using MLPA results as the standard. Results A total of 336 samples were included in this study, consisting of 50 homozygous deletion types (14.9%), 65 heterozygous deletion types (19.3%), and 221 non-deletion types (65.8%). The results of PCR/CE for detecting SMN1 and SMN2 copy numbers (0, 1, 2, 3, ≥ 4) were in complete agreement with the results of the MLPA. Conclusions PCR/CE for gene testing related to SMA could accurately detect copy numbers of exon 7 and exon 8 of the SMN1 and SMN2 genes (0, 1, 2, 3, ≥ 4).

参考文献

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