Epstein-Barr Virus, Beta-Catenin, and E-cadherin in Gastric Carcinomas
Journal of Korean Medical Science
;
: 855-861, 2007.
Artículo
en Inglés
| WPRIM
| ID: wpr-176599
ABSTRACT
Activated beta-catenin is suggested to inhibit NF-kappaB activation, and we previously demonstrated that NF-kappaB nuclear positivity was more frequent in Epstein-Barr virus (EBV)-infected gastric carcinomas. It is controversial that beta-catenin and E-cadherin are prognostic markers in gastric carcinomas. To define a relationship between beta-catenin and EBV, and the prognostic value of beta-catenin and E-cadherin, we analyzed in situ hybridization for EBV-encoded small RNAs, betacatenin, and E-cadherin immunohistochemistry, and clinicophatological features in 111 gastric carcinomas. EBV infection was detected in seven carcinomas (6.3%); none of seven showed beta-catenin nuclear accumulation, and five out of seven revealed beta-catenin membranous loss or cytoplamic expression. Eighty cases (72.1%) showed beta-catenin alteration; i.e., loss of membrane staining in 65 (58.6 %), cytoplasmic expression in 35 (31.5%), and nuclear accumulation in 15 (13.5%). E-cadherin alteration was observed in 34 cases (30.6%) and correlated with betacatenin alteration. On multivariate analysis, the combined immunoexpression group of beta-catenin nuclear accumulation/ E-cadherin alteration and the advanced TNM cancer stage group showed poor patient's survival (p<0.05). In conclusion, betacatenin activation through nuclear accumulation hardly occurred in EBV-infected gastric carcinomas. The combined immunoexpression pattern of beta-catenin and E-cadherin can be used as a prognostic marker in gastric carcinomas.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Pronóstico
/
Neoplasias Gástricas
/
Inmunohistoquímica
/
Carcinoma
/
Cadherinas
/
Regulación Neoplásica de la Expresión Génica
/
Regulación Viral de la Expresión Génica
/
Núcleo Celular
/
FN-kappa B
/
Hibridación in Situ
Tipo de estudio:
Estudio pronóstico
Límite:
Adulto
/
Anciano
/
Femenino
/
Humanos
/
Masculino
Idioma:
Inglés
Revista:
Journal of Korean Medical Science
Año:
2007
Tipo del documento:
Artículo
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