尖锐湿疣皮损中人乳头瘤病毒基因分型研究

Genotyping of Human Papillomavirus in Condyloma Acuminata

目的采用反向杂交研究尖锐湿疣皮损中人乳头瘤病毒(HPV)的感染状况。方法提取尖锐湿疣新鲜标本的HPVDNA,采用PGMY09/11引物系统进行聚合酶链反应(PCR)。PCR产物在标记有37种HPV型特异性探针的尼龙膜条带上进行HPVDNA杂交分型。所有DNA模板采用HPV6和11型特异性引物进行PCR检测验证。数据经SPSS11.0统计软件分析。结果杂交结果显示201例标本HPVDNA均为阳性,共发现31种HPV基因型,其主要的HPV基因型名称及所占比例分别如下:HPV11(53.7%,108/201)、HPV6(43.8%,88/201)、HPV16(6.5%,13/201)、HPV52(6.0%,12/201)、HPV33和HPVcp6108(均为5.5%,11/201)、HPV42(5.0%,10/201)等。60.2%(121/201)的标本由单一型HPV感染,39.8%的标本由混合型HPV感染。HPV6和11型特异性引物PCR结果显示HPV6和11的阳性率分别为45.8%和56.2%,与杂交结果比较,一致性分别为98.5%和96.5%,资值分别为0.97和0.93,P值均<0.001。结论至少有31种HPV基因型与尖锐湿疣相关。HPV11阳性率最高,HPV68、40、54、67、73、82、35、64和83在尖锐湿疣中少见,HPVcp6108在尖锐湿疣中首次发现,且阳性率较高(与HPV33并列第5位)。HPV26、69、70、71、72和IS39可能与尖锐湿疣不相关。尖锐湿疣中单一型和混合型HPV阳性率分别为60.2%(121/201)和39.8%(80/201)。

Objective To systematically investigate the molecular epidemiological profiles of human papillomavirus (HPV) in patients with condyloma acuminata(CA). Methods Two hundred and one samples of HPV DNA isolated from CA were PCR amplified by the PGMY09/11 primer system. The PCR products were simultaneously hybridized to 37 specific HPV probes immobilized on a nylon strip and then genotyped. All DNA templates were further PCR amplified using HPV 6 and 11 type specific primers for verification. Results All samples were HPV DNA positive consisting of totally 31 genotypes, the types of which were type 11(53.7%, 108/201), 6(43.8%, 88/201), 16(6.5%, 13/201), 52(6.0%, 12/201), 33(5.5%, 11/201), cp6108 (5.5%, 11/201) and 42 (5.0%, 10/201). The samples infected with a single and mixed types of HPV accounted for 60.2% (121/201) and 39.8% (80/201) respectively. Consistent results were found with the detection of HPV6 and 11 between hybridization assay and type-specific PCR. Conclusions At least 31 HPV genotypes are associated with CA. HPV 11 predominates while 68, 40, 54, 67, 73, 82, 35, 64 and 83 are rare in CA. Type cp6108 is detected in CA for the first time with a high prevalence. HPV26, 69, 70, 71,72 and IS39 might be not associated with CA. CA infected with a single and mixed HPV types accounts for 60.2% and 39.8%, respectively.