Nasopharyngeal carcinoma in Indonesia has a low prevalence of the 30-base pair deletion of Epstein-Barr virus latent membrane protein 1.
Southeast Asian J Trop Med Public Health
;
2003 Mar; 34(1): 98-105
Artigo
em Inglês
| IMSEAR
| ID: sea-33365
ABSTRACT
Epstein-Barr virus (EBV) is associated with nasopharyngeal carcinoma (NPC), one of the highest incidence of tumors in Indonesia. EBV infection is ubiquitous around the world, but NPC occurs with a remarkable geographic distribution. This phenomenon suggests that there are subtypes of EBV, some of which may have greater tumorigenic potential. The latent membrane protein 1 (LMP 1) gene encoded by EBV is tumorigenic due to its ability to transform rodent fibroblast. It was originally shown that the LMP 1 gene from NPC of Chinese patients harbors a deletion of 30-bp in the carboxyl terminal of the gene. However, the deletion is also present in healthy control and in other EBV-positive tumors. We examined the polymorphism of LMP 1 in 56 tumor biopsies of Indonesian patients with NPC and identified low prevalence of the 30-bp deletion of LMP 1. Sequence analysis showed unique mutations of LMP 1 which suggests that strain-specific variations of EBV are found in Indonesia. The low frequency of 30-bp deletion in the country with high prevalence of NPC indicates that the deletion may represent a geographic polymorphism rather than a predisposing factor in the development of NPC.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Polimorfismo Genético
/
Humanos
/
Dados de Sequência Molecular
/
Carcinoma
/
Proteínas da Matriz Viral
/
Neoplasias Nasofaríngeas
/
Reação em Cadeia da Polimerase
/
Prevalência
/
Deleção de Genes
/
Indonésia
Tipo de estudo:
Estudo de prevalência
/
Estudo prognóstico
/
Fatores de risco
País/Região como assunto:
Ásia
Idioma:
Inglês
Revista:
Southeast Asian J Trop Med Public Health
Ano de publicação:
2003
Tipo de documento:
Artigo
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