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中华实验和临床感染病杂志(电子版) ›› 2017, Vol. 11 ›› Issue (02) : 129 -133. doi: 10.3877/cma.j.issn.1674-1358.2017.02.006

临床论著

TaqMan荧光定量PCR检测HIV-1 DNA方法的建立及初步应用
韩根鹏1, 熊勇1,(), 高雨2, 杨小霞1   
  1. 1. 430071 武汉市,武汉大学中南医院感染科
    2. 430072 武汉市,武汉大学生命科学学院
  • 收稿日期:2016-09-22 出版日期:2017-04-15
  • 通信作者: 熊勇
  • 基金资助:
    国家科技重大专项(No. 2014ZX10001003006)

TaqMan real-time PCR assay for the quantification of HIV-1 DNA

Genpeng Han1, Yong Xiong1,(), Yu Gao2, Xiaoxia Yang1   

  1. 1. Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
    2. College of Life Sciences, Wuhan University, Wuhan 430072, China
  • Received:2016-09-22 Published:2017-04-15
  • Corresponding author: Yong Xiong
引用本文:

韩根鹏, 熊勇, 高雨, 杨小霞. TaqMan荧光定量PCR检测HIV-1 DNA方法的建立及初步应用[J]. 中华实验和临床感染病杂志(电子版), 2017, 11(02): 129-133.

Genpeng Han, Yong Xiong, Yu Gao, Xiaoxia Yang. TaqMan real-time PCR assay for the quantification of HIV-1 DNA[J]. Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition), 2017, 11(02): 129-133.

目的

建立基于TaqMan探针的HIV DNA荧光定量PCR检测方法,并检验其可靠性和稳定性。

方法

选择HIV-1的保守区域LTR-gag设计引物和探针,构建质粒标准品,建立检测方法,对12份HIV-1阳性标本和5份HIV-1阴性标本进行检测。将检测结果与罗氏HIV DNA定性检测试剂盒作比较。

结果

荧光定量PCR体系的检测下限为50拷贝/μl,标准曲线的相关系数为0.99,斜率为-1.65,截距为39.80;12份HIV-1阳性标本,检出率为100%;5份HIV-1阴性标本,检测结果均为阴性。该方法与罗氏HIV DNA定性检测试剂盒检测结果完全一致。采用不同方法提取的DNA再行HIV DNA检测,其差异无统计学意义(t = 0.033、P = 0.974)。

结论

成功建立了一种HIV DNA的检测方法,具有快速、特异性强以及稳定性好等优点。

Objective

To establish a real-time PCR assay for HIV DNA quantification.

Methods

The primers were designed according to the sequence of LTR-gag gene. A recombinant plasmid containing LTR-gag gene was constructed as a standard control. HIV DNA quantification were detected by real-time PCR assay. Reproducibility and specificity of this assay were also evaluated. HIV DNA from 12 cases with HIV-1 infection was also detected. The results were compared with Roche HIV DNA qualitative detection kit.

Results

The detection limit of the fluorescent quantitative PCR was 50 copies/μl. The correlation coefficient of the standard curves was 0.99, the slope was -1.65, and the intercept was 39.80. HIV-1 DNA from 12 cases with HIV-1 infection was successfully quantified using this assay. All the results were consistent with the results of the Roche HIV DNA qualitative detection kit, with no significant differences in the results of HIV DNA by different extraction methods (t = 0.033, P = 0.974).

Conclusion

HIV DNA detection method that is rapid, specific and repeatable was established successfully.

表1 NCBI数据库数据分析
表2 两种方法DNA定量结果
图1 质粒标准品浓度梯度标准曲线
图2 扩增片段的凝胶电泳结果
表3 PCR稳定性分析(拷贝/ml)
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