Journal
JOURNAL OF CANCER
Volume 8, Issue 6, Pages 1062-1070Publisher
IVYSPRING INT PUBL
DOI: 10.7150/jca.17080
Keywords
Esophageal neoplasias; p16; p53; immunohistochemistry; HPV
Categories
Funding
- CNPq [482666/2012-9]
- Fundacao de Amparo a Pequisa do Estado de Sao Paulo (FAPESP) [13/15968-0]
- INCT HPV [Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)] [08/57889-1]
- INCT HPV [Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)] [573799/2008-3]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [13/15968-0] Funding Source: FAPESP
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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.
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