Open Access
CC BY 4.0 · Rev Bras Ginecol Obstet 2023; 45(08): e474-e479
DOI: 10.1055/s-0043-1772180
Original Article
Sexually Transmitted Infections/Oncology

Human Papillomavirus 16 Lineage D is Associated with High Risk of Cervical Cancer in the Brazilian Northeast Region

Papillomavirus humano 16 da linhagem D associado a alto risco de câncer de colo do útero em região do nordeste brasileiro
1   Cancer Surveillance and Data Analysis Division, Instituto Nacional de Câncer, Rio de Janeiro, RJ, Brazil
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2   Tumor Genetics and Virology Program, Instituto Nacional de Câncer, Rio de Janeiro, RJ, Brazil
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3   Instituto de Medicina Integral Prof. Fernando Figueira, Recife, PE, Brazil
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4   Division of Population Research, Instituto Nacional de Câncer, Rio de Janeiro, RJ, Brazil
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2   Tumor Genetics and Virology Program, Instituto Nacional de Câncer, Rio de Janeiro, RJ, Brazil
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5   Universidade Federal do Maranhão, São Luis, MA, Brazil
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3   Instituto de Medicina Integral Prof. Fernando Figueira, Recife, PE, Brazil
,
3   Instituto de Medicina Integral Prof. Fernando Figueira, Recife, PE, Brazil
,
6   Coordination of Prevention and Surveillance, Instituto Nacional do Câncer, Rio de Janeiro, RJ, Brazil
› Author Affiliations
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Abstract

Objective Similar to Human Papillomavirus (HPV) genotypes, different lineages of a genotype also have different carcinogenic capabilities. Studies have shown that specific genotype lineages of oncogenic HPV are associated with variable risks for the development of cervical intraepithelial neoplasia (CIN2/CIN3) and cervical cancer. The present study aimed to analyze the genetic diversity of the HPV16 genotype in women with CIN2/CIN3 and cervical cancer, from the northeast region of Brazil.

Methods A cross-sectional multicenter study was conducted in the northeast region of Brazil, from 2014 to 2016. This study included 196 cases of HPV16 variants (59 and 137 cases of CIN2/CIN3 and cervical cancer, respectively). The difference of proportion test was used to compare patients with CIN2/CIN3 and cervical cancer, based on the prevalent HPV16 lineage (p < 0.05).

Results According to the histopathological diagnosis, the percentage of lineage frequencies revealed a marginal difference in the prevalence of lineage A in CIN2/CIN3, compared with that in cervical cancer (p = 0.053). For lineage D, the proportion was higher in cancer cases (32.8%), than in CIN2/CIN3 cases (16.9%), with p = 0.023.

Conclusion HPV16 lineage A was the most frequent lineage in both CIN2/CIN3 and cervical cancer samples, while lineage D was predominant in cervical cancer, suggesting a possible association between HPV16 lineage D and cervical cancer.

Resumo

Objetivo Tanto os tipos quanto as linhagens do Papilomavírus Humano (HPV) parecem ter diferentes capacidades carcinogênicas e estão associados a riscos variados para o desenvolvimento de neoplasia intraepitelial cervical (NIC) e câncer de colo do útero. O presente estudo tem como objetivo analisar a diversidade genética do genótipo HPV 16 nos casos de NIC2/NIC3 e câncer de colo de útero em mulheres da região Nordeste do Brasil.

Métodos Estudo transversal de base hospitalar realizado na região Nordeste do Brasil no período de 2014 a 2016. A amostra foi composta por 196 casos da variante HPV-16 (59 casos de NIC2/NIC3 e 137 de câncer do colo do útero). O teste de diferença de proporção foi usado para comparar os grupos NIC2/NIC3 e câncer de colo do útero por linhagem viral em relação à prevalência da linhagem HPV-16. Foi considerada significância estatística o valor de p < 0,05.

Resultados As frequências de linhagem por diagnóstico histopatológico mostraram diferença limítrofe da linhagem A no grupo NIC2/NIC3 em relação ao grupo câncer de colo de útero (p = 0,053). Por outro lado, em relação à linhagem D, houve uma proporção maior nos casos de câncer (32,8%) quando comparado ao grupo NIC2/NIC3 (16,9%) e esta diferença se mostrou estatisticamente significante (p = 0,023).

Conclusão A linhagem A do HPV-16 foi a mais frequente tanto nas amostras CIN2/CIN3 quanto nas amostras de câncer de colo de útero, enquanto a linhagem D predominou no câncer de colo do útero, sugerindo uma possível associação da linhagem D de HPV-16 com câncer de colo de útero.

Contributions

Martins L. F. L.: Conceptualization, Methodology, Formal analysis, Writing– Original Draft, Writing– Review and Editing. Moreira M. A. M.: Supervision, Conceptualization, Writing– Original Draft, Writing– Review and Editing. Pinto R. A.: Conceptualization, Writing– Original Draft, Writing– Review. Reis N. B.: Methodology, Writing– Original Draft, Writing– Review and Editing. Felix S. P.: Performed the Experiments, Writing– Review and Editing. Vidal J. P. C. B.: Performed the experiments, Writing– Review and Editing. Torres L. C.: Supervision, Performed the experiments, Writing– Review and Editing. Souza A. I.: Conceptualization, Writing– Original Draft, Writing– Review and Editing. Almeida L. M.: Project administration, Funding acquisition, Conceptualization, Writing– Original Draft, Writing– Review and Editing.




Publication History

Received: 06 January 2023

Accepted: 08 March 2023

Article published online:
08 September 2023

© 2023. Federação Brasileira de Ginecologia e Obstetrícia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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