Autor(es): Pastrez, Paula Roberta Aguiar ; Mariano, Vânia Sammartino ; Costa, Allini Mafra da ; Silva, Estela Maria ; Scapulatempo-Neto, Cristovam ; Guimarães, Denise Peixoto ; Fava, Gilberto ; Neto, Said Abdala Zemi ; Nunes, Emily Montosa ; Longatto Filho, Adhemar ; et. al.
Data: 2017
Identificador Persistente: https://hdl.handle.net/1822/49111
Origem: RepositóriUM - Universidade do Minho
Assunto(s): Esophageal neoplasias; p16; p53; Immunohistochemistry; HPV
GOAL: To investigate the HPV prevalence and characterize the expression of potential molecular surrogate markers of HPV infection in esophageal squamous cell carcinoma. MATERIALS AND METHODS: The prevalence of HPV in individuals with and without esophageal cancer (EC) was determined by using multiplex PCR; p16 and p53 protein levels were assessed by immunohistochemistry (IHC). RESULTS: High-risk HPV (hr-HPV) was found in the same frequency (13.8%) in esophageal squamous cell carcinoma (ESCC) and in healthy individuals. The p53 expression was positive in 67.5% of tumor tissue, 20.0% of adjacent non-tumoral tissue and 1.8% of normal esophageal tissue. p16 was positive in 11.6% of esophageal cancer cases and 4.7% of adjacent non-tumoral tissue. p16 was undetectable among control group samples. p53 and p16 levels were not significantly associated with the HPV status. CONCLUSIONS: These results suggest that hr-HPV types are not associated with the development of ESCC and that p53 and p16 protein expression have no relationship with HPV infection in normal or cancerous esophagus.
