p16INK 4a and Ki-67 expression in human papilloma virus-related head and neck mucosal lesions / Expresión de p16INK 4a y Ki-67 en las lesiones de cabeza y cuello relacionados con el virus del papilloma humano
Invest. clín
;
56(1): 47-59, mar. 2015. ilus, graf
Artículo
en Español
| LILACS
| ID: biblio-841066
ABSTRACT
Human papilloma virus (HPV) is postulated as a risk factor in the etiology of some specific mucosal pathologies in the head and neck regions. Despite the frequent use of p16INK4a as a surrogate marker for HPV-infection, there is still controversy with respect to its reliability. This study has been undertaken to assess the potential role of p16INK 4a and Ki-67 expression in HPV-related lesions. The study was conducted on 71 specimens of oral, tonsillar and laryngeal lesions which comprised 25 dysplasia and 46 papilloma specimens. Specimens were immunohistochemically stained for p16INK4A and Ki-67 proteins. HPV DNA was determined by one step multiplex polymerase chain reaction. HPV DNA was detected in 33.8% of all lesions. Tonsil and larynx lesions showed significant differences with oral lesions for HPV positivity (p<0.001). p16INK 4a over-expression was seen in 56.5% of papilloma and 60% of dysplasia specimens. HPV status showed a positive correlation with p16INK 4a expression in tonsillar dysplasias (p<0.001). p16INK 4a expression may have a value as a marker in high risk HPV induced dysplasias, but not in low risk infected lesions. The proliferation index is not related to HPV-induced lesions and may be evaluated as an independent marker in head and neck premalignant lesions.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Papillomaviridae
/
Antígeno Ki-67
/
Inhibidor p16 de la Quinasa Dependiente de Ciclina
/
Neoplasias de Cabeza y Cuello
Tipo de estudio:
Factores de riesgo
Límite:
Adolescente
/
Adulto
/
Anciano
/
Aged80
/
Niño
/
Femenino
/
Humanos
/
Masculino
Idioma:
Español
Revista:
Invest. clín
Asunto de la revista:
Biologia
/
Medicina
/
Relatos de Casos
Año:
2015
Tipo del documento:
Artículo
País de afiliación:
Turquía
Institución/País de afiliación:
Gazi University/TR
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