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Silveira, Heitor Albergoni ; Almeid, Luciana Yamamoto ; Carlos, Roman ; Silvaa, Evanio Vilela ; Ferrisse, Tulio Morandin ; Duarte, Andressa ; Cardoso, Suziene Caroline Sivailva ; Polanco, Xiomara Beatriz Jimenez ; Bufalino, Andreia ; Ribeiro-Silva, Alfredo ; Leon, Jorge Esquihe

• Tipo de documento: Artigo Científico
• Fonte: AURIS NASUS LARYNX; v. 49, n. 2, p. 13-pg., 2022-03-12.

Resumo

Objectives: While unknown for oropharyngeal squamous cell carcinoma (OPSCC) and oral squamous cell carcinoma (OSCC), some studies assessing cervical carcinoma have shown that human papillomavirus (HPV) co-infection can be associated with its prognosis.& nbsp;Methods: Through in situ hybridization (HPV and Epstein-Barr virus [EBV] probes) and immunohistochemistry (p16(INK4a), cyclin D1, p53, and Ki-67 antibodies), 126 OPSCC and 109 OSCC samples were assessed.& nbsp;Results: All patients were EBV-negative. OPSCC (25%) showed a significant association with HPV compared to OSCC (11%). Almost all HPV-associated cases were p16(INK4a)-positive. Regarding OPSCC and OSCC, 23 and 7 cases were positive for high-risk HPV (HRHPV) only, 6 and 3 cases for low-risk HPV (LRHPV) only, and 3 and 2 cases for HRHPV/LRHPV, respectively. HPV-associated carcinomas showed a significantly higher proliferative index than HPV-unassociated carcinomas. Both carcinomas showed a similar overall survival rate, which was not affected by the HPV status. However, when comparing HPV-associated subgroups, patients with HRHPV/LRHPV-associated carcinomas showed worse survival.& nbsp;Conclusion: LRHPV-associated and HRHPV/LRHPV-associated cases can also be detected when assessing OSCC and OPSCC. Further studies, especially in populations with a high prevalence of HPV-associated OPSCC, are necessary to understand the clinicopathological behavior of these neoplasm subgroups. (C)& nbsp;2021 Japanese Society of Otorhinolaryngology-Head and Neck Surgery, Inc. Published by Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 16/02713-2 - Efeitos da terapia com erlotinib e gefitinib em associação ao ácido all-trans retinóico e trióxido de arsênico na leucemia promielocítica aguda: estudo in vitro, ex vivo e em modelo experimental murino.
• Beneficiário: Luciana Yamamoto de Almeida
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 16/11419-0 - Correlação clinicopatológica do grau de diferenciação, expressão de tetraspaninas, agentes virais e proliferação celular em uma ampla série de carcinomas espinocelulares da região de cabeça e pescoço.
• Beneficiário: Jorge Esquiche León
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 18/12734-2 - Caracterização imunoistoquímica comparativa de subgrupos de células dendríticas e oncogênese viral no carcinoma espinocelular oral e orofaríngeo
• Beneficiário: Heitor Albergoni da Silveira
• Modalidade de apoio: Bolsas no Brasil - Mestrado