Valdivia L Isabel M, Aguayo G Francisco, Pruyas A Martha, Snijders Peter J F, Corvalán R Alejandro, Ferreccio R Catterina
Laboratorio de Patología Molecular y Epidemiología, Centro de Investigaciones Médicas, Pontificia Universidad Católica de Chile, Santiago, Chile.
Rev Chilena Infectol. 2010 Feb;27(1):11-6. Epub 2010 Feb 3.
We compared HPV genotypes among squamous cervical cancer samples from a public hospital (n = 55) and a private clinic (n = 35 cases) of Santiago. Paraffin-embedded specimens were analyzed by PCR followed by an immunoenzimatic assay. Reverse line blotting was used for the identification of 36 HPV genotypes. We found HPVDNAm 94.4% of all cancers. Single mfections: HPV16: 40.0%, (clinic 37.1%, hospital 41.8%) VPH18:7.8% (clinic 2.9%, hospital 10.9%); single+multiple mfections: VPH16: 61.1% (clinic 53.1%, hospital 71.7%), VPH18: 34.4% (clinic 21.9%, hospital 45.2%). HPV16 orHPV18 occurredin 75.6% of cases, higher in the hospital than the clinic (87.3%-95% CI: 84.9-96.3 - and 57. l%-95% CI: 46.6-66 - respectively, p = 0.002). Other genotypes in single mfections: HPV 26, 31, 33, 45, 58, 67; in co-mfections: HPV 35,52,56,59 and 66. HPV16 but specially HPV 18 were significantly more frequent in the public hospital; 75.6% of squamous cervical cancer were associated to the vaccine preventable HPV16/18.
我们比较了圣地亚哥一家公立医院(n = 55)和一家私人诊所(n = 35例)的宫颈鳞状癌样本中的HPV基因型。通过PCR随后进行免疫酶测定分析石蜡包埋标本。采用反向线印迹法鉴定36种HPV基因型。我们在所有癌症中发现HPV DNA的比例为94.4%。单一感染:HPV16:40.0%,(诊所37.1%,医院41.8%);HPV18:7.8%(诊所2.9%,医院10.9%);单一感染+多重感染:HPV16:61.1%(诊所53.1%,医院71.7%),HPV18:34.4%(诊所21.9%,医院45.2%)。75.6%的病例中出现HPV16或HPV18,在医院中的比例高于诊所(分别为87.3%-95%CI:84.9-96.3和57.1%-95%CI:46.6-66,p = 0.002)。单一感染中的其他基因型:HPV 26、31、33、45、58、67;合并感染中的基因型:HPV 35、52、56、59和66。HPV16尤其是HPV 18在公立医院中明显更常见;75.6%的宫颈鳞状癌与疫苗可预防的HPV16/18相关。