EBV reactivation as a target of luteolin to repress NPC tumorigenesis.
Oncotarget
; 7(14): 18999-9017, 2016 Apr 05.
Article
en En
| MEDLINE
| ID: mdl-26967558
ABSTRACT
Nasopharyngeal carcinoma (NPC) is a malignancy derived from the epithelial cells of the nasopharynx. Although a combination of radiotherapy with chemotherapy is effective for therapy, relapse and metastasis after remission remain major causes of mortality. Epstein-Barr virus (EBV) is believed to be one of causes of NPC development. We demonstrated previously that EBV reactivation is important for the carcinogenesis of NPC. We sought, therefore, to determine whether EBV reactivation can be a target for retardation of relapse of NPC. After screening, we found luteolin is able to inhibit EBV reactivation. It inhibited EBV lytic protein expression and repressed the promoter activities of two major immediate-early genes, Zta and Rta. Furthermore, luteolin was shown to reduce genomic instability induced by recurrent EBV reactivation in NPC cells. EBV reactivation-induced NPC cell proliferation and migration, as well as matrigel invasiveness, were also repressed by luteolin treatment. Tumorigenicity in mice, induced by EBV reactivation, was decreased profoundly following luteolin administration. Together, these results suggest that inhibition of EBV reactivation is a novel approach to prevent the relapse of NPC.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Activación Viral
/
Neoplasias Nasofaríngeas
/
Herpesvirus Humano 4
/
Luteolina
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Oncotarget
Año:
2016
Tipo del documento:
Article
País de afiliación:
Taiwán