Cell cycle suppressor proteins are not related to HPV status or clinical outcome in patients with vulvar carcinoma.
Tumour Biol
; 34(6): 3713-20, 2013 Dec.
Article
en En
| MEDLINE
| ID: mdl-23832541
ABSTRACT
Interactions between the cyclin-dependent kinase inhibitors (CDKI) and human papillomavirus (HPV) infection in the pathogenesis of vulvar carcinoma are still incomplete. This study aimed to evaluate the prognostic relevance of these proteins in vulvar cancer. One hundred and thirty-nine patient specimens assembled in a tissue microarray were evaluated for p16, p21, p27, and pRb by immunohistochemistry. HPV status was assessed by a linear array HPV genotyping test. In 16 cases with available frozen tumor, quantitative real-time reverse transcriptase-polymerase chain reaction for CDKN2A(p16), CDKN1A, and Rb was performed. Protein expression was considered positive in 40 patients for p16, 35 for p21, 28 for p27, and 19 for pRb. HPV was positive in 43 of the 105 evaluable cases. Expression of CDKIs and pRb, with the exception of p16, seem to be linked to the early phases of vulvar carcinogenesis. Although p16 and p21 protein expression was associated with early stages of disease, no prognostic significance was found when analyzing CDKI proteins or detecting HPV status, limiting their clinical usage. No association was observed between expression of CDKI proteins and HPV status, suggesting that in spite of this association found in cervical cancer, this seems not to be valid for vulvar carcinoma.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Neoplasias de la Vulva
/
Proteína de Retinoblastoma
/
Inhibidor p16 de la Quinasa Dependiente de Ciclina
/
Infecciones por Papillomavirus
/
Inhibidor p21 de las Quinasas Dependientes de la Ciclina
/
Inhibidor p27 de las Quinasas Dependientes de la Ciclina
Tipo de estudio:
Prognostic_studies
Límite:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Middle aged
Idioma:
En
Revista:
Tumour Biol
Asunto de la revista:
NEOPLASIAS
Año:
2013
Tipo del documento:
Article