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HPV genotype distribution and anomalous association of HPV33 to cervical neoplastic lesions in San Luis Potosí, Mexico

dc.contributor.authorDe la Rosa Martínez, Raúl
dc.contributor.authorSánchez Garza, Mireya Guadalupe
dc.contributor.authorLópez Revilla, Rubén Hipólito
dc.contributor.editorBioMed Central Ltd
dc.date.accessioned2018-03-23T23:59:27Z
dc.date.available2018-03-23T23:59:27Z
dc.date.issued2016-03
dc.identifier.citationDelaRosa-Martínez, R., Sánchez-Garza, M., & López-Revilla, R. (2016). HPV genotype distribution and anomalous association of HPV33 to cervical neoplastic lesions in San Luis Potosí, Mexico. Infectious Agents and Cancer, 11, 16. http://doi.org/10.1186/s13027-016-0063-z
dc.identifier.urihttp://hdl.handle.net/11627/3693
dc.description.abstract" Background: The association of human papillomavirus (HPV) types to neoplastic lesions increase as a function of their oncogenicity and the duration of the infection since lesion severity progresses from low-grade to high-grade and cancer. In an outbreak, the prevalence of the HPV type involved would increase and the proportion of the associated low-grade lesions would predominate over severe lesions. In this study, the prevalence of HPV types and their association to neoplastic lesions was determined in women subjected to colposcopy in San Luis Potosi, Mexico. Methods: DNA from high-risk (HR) and low-risk (LR) HPV types was identified by E6 nested multiplex PCR in cervical scrapes from 700 women with normal cytology, atypical squamous cells of undetermined significance (ASCUS), low-grade squamous intraepithelial lesions (LSIL), high-grade squamous intraepithelial lesions (HSIL) or invasive cervical cancer (CC). Results: Overall HPV-DNA prevalence was 67.7 %, that of HR-HPV was 63.1 %, and that of LR-HPV was 21.3 %. The highest prevalence (78.2 %) occurred in the 15-24 year group, whereas that of single infections was 52 % and that of multiple infections (i.e., by 2-6 HPV types) was 48 %. The most prevalent HR types were HPV33 (33.1 %), HPV16 (16.6 %), HPV18 and HPV51 (6.7 % each). HR-HPV prevalence was 29.6 % in normal cytology, 26.7 % in ASCUS, 63.3 % in LSIL, 68.2 % in HSIL, and 90.5 % in CC. Three prevalence trends for HR-HPV types were found in neoplastic lesions of increasing severity: increasing (LSIL < HSIL < CC) for HPV16, HPV39, HPV18, HPV58, HPV31 and HPV35; asymptotic (LSIL < HSIL approximate to CC) for HPV51 and HPV68; U-shaped (LSIL < HSIL > CC) for HPV33. Conclusions: Two-thirds of the women subjected to colposcopy from 2007 to 2010 in San Luis Potosi have HPV infections which predominate in the 15-24 years group. Around half of the infections are by one viral type and the rest by 2-6 types. HPV33 is the most prevalent type, followed by HPV16. Overall HR-HPV prevalence increases with the severity of neoplastic lesions. HPV33 prevalence is highest in LSIL and its U-shaped trend with progressing neoplastic lesions differs from the growing/asymptotic trends of other HR-HPV types. An ongoing or recent HPV33 outbreak is consistent with its high prevalence and anomalous association to LSIL."
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectCervical cancer
dc.subjectHuman papillomavirus
dc.subjectAtypical squamous cells of undetermined significance
dc.subjectLow-grade squamous intraepithelial lesions
dc.subjectHigh-grade squamous intraepithelial lesions
dc.subjectInvasive cervical carcinoma
dc.subjectHPV33 outbreak
dc.subject.classificationONCOLOGÍA
dc.titleHPV genotype distribution and anomalous association of HPV33 to cervical neoplastic lesions in San Luis Potosí, Mexico
dc.typearticle
dc.identifier.doihttps://doi.org/10.1186/s13027-016-0063-z
dc.rights.accessAcceso Abierto


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional