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通用引物SPF1/GP6++与SPF1/GP6+聚合酶链式反应检测多型别人乳头瘤病毒敏感度的比较[J]. 肿瘤防治研究, 2015, 42(09): 882-886. DOI: 10.3971/j.issn.1000-8578.2015.09.005
引用本文: 通用引物SPF1/GP6++与SPF1/GP6+聚合酶链式反应检测多型别人乳头瘤病毒敏感度的比较[J]. 肿瘤防治研究, 2015, 42(09): 882-886. DOI: 10.3971/j.issn.1000-8578.2015.09.005
Comparison Between Universal Primer SPF1/GP6++ and SPF1/GP6+ Polymerase Chain Reaction in Detection of Various Genotypes of Human Papillomavirus[J]. Cancer Research on Prevention and Treatment, 2015, 42(09): 882-886. DOI: 10.3971/j.issn.1000-8578.2015.09.005
Citation: Comparison Between Universal Primer SPF1/GP6++ and SPF1/GP6+ Polymerase Chain Reaction in Detection of Various Genotypes of Human Papillomavirus[J]. Cancer Research on Prevention and Treatment, 2015, 42(09): 882-886. DOI: 10.3971/j.issn.1000-8578.2015.09.005

通用引物SPF1/GP6++与SPF1/GP6+聚合酶链式反应检测多型别人乳头瘤病毒敏感度的比较

Comparison Between Universal Primer SPF1/GP6++ and SPF1/GP6+ Polymerase Chain Reaction in Detection of Various Genotypes of Human Papillomavirus

  • 摘要: 目的 对比通用引物SPF1/GP6++与SPF1/GP6+ PCR两种方法检测人乳头瘤病毒(HPV)的敏感度和感染型别范围。方法 以包含HPV16全长DNA序列的质粒为模板,应用HPV L1基因型别特异性引物进行PCR扩增,获得15种型别HPV模拟靶基因序列并克隆入pEASY-T1载体,将梯度稀释的重组质粒掺入50 ng正常人基因组DNA,模拟各型别HPV感染的待测样本,对比SPF1/GP6+和SPF1/GP6++两组通用引物的检测敏感度。进一步在68例人宫颈癌组织DNA样本中进行对比验证。结果 与SPF1/GP6+PCR比较,SPF1/GP6++ PCR对HPV11,31,34,39,51,52,53,56,58,61和66型别的检测敏感度提高了1到2个数量级,对于HPV16,18,33和35常见感染型别的检测敏感度相似。应用SPF1/GP6++ PCR检测宫颈癌组织HPV感染的总阳性率为98.5%(67/68),检测到11例双重感染和2例三重感染;而应用SPF1/GP6+ PCR检测的总阳性率为95.6%(65/68),仅检测到7例双重感染。结论 在SPF1/GP6+ PCR基础上建立了SPF1/GP6++ PCR方法,并证实SPF1/GP6++ PCR具有更高的检测敏感度和更广的HPV型别检测范围。

     

    Abstract: Objective To compare the detection sensitivity and infection type range of universal primer SPF1/GP6++ and SPF1/GP6+ polymerase chain reaction(PCR) on human papillomavirus(HPV). Methods Fifteen types of HPV L1 mock target genes were amplified using type-specific primers with full-length HPV16 in plasmid as template and subsequently cloned into pEASY-T1 vector. The obtained recombinant plasmids were serially diluted and mixed with 50ng genomic DNA derived from healthy human blood cells to mimic HPVinfected samples. We compared the sensitivity between SPF1/GP6+ and SPF1/GP6++ general primers and further verified in 68 cases of DNA samples of human cervical cancer tissues. Results Compared with SPF1/GP6+ PCR, SPF1/GP6++ PCR provided advantages of 1 to 2 magnitude orders in the detection sensitivity of HPV 11, 31, 34, 39, 51, 52, 53, 56, 58, 61 and 66; as to the prevalent HPV type 16, 18, 33 and 35, both methods showed similar detection sensitivity. Using SPF1/GP6++ PCR, total HPV positive rate of cervical cancer tissues was 98.5%(67/68), and 11 cases infected with double HPV types and 2 cases with triple HPV types were detected. While the positive rate of HPV infection was 95.6%(65/68) and only 7 cases with double HPV types were detected using SPF1/GP6+ PCR. Conclusion SPF1/GP6++ PCR is established based on SPF1/GP6+ PCR and verified to possess elevated detection sensitivity and expanded range of HPV genotypes.

     

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