Antitumor effects of interferon-alpha on cell growth and metastasis in human nasopharyngeal carcinoma.
Curr Cancer Drug Targets
; 12(5): 561-70, 2012 Jun.
Article
em En
| MEDLINE
| ID: mdl-22414012
ABSTRACT
Nasopharyngeal carcinoma (NPC) is a highly malignant and frequently metastasized tumor, and the prognosis is very poor when distant metastases occur. Recently, immunotherapy is becoming a promising therapeutic approach. Interferon-α (IFN-α) represents the cytokines exhibiting the longest record of use in clinical oncology. In this study, we examined the antitumor effects of IFN-α1b on NPC. The results showed that recombinant human IFN-α1b (hIFN-α1b) suppressed cell growth, induced a G1-phase cell cycle arrest in vitro, increased the expression of p16 and pRb, and decreased the expression of CCND1 and CDK6. In vivo analyses showed that either recombinant adeno-associated virus (rAAV)-IFN-α1b or hIFN-α1b treatment inhibited tumor growth and metastasis, reduced intratumoral microvessel density, increased cell apoptosis and necrosis, and induced prolonged survival. Notably, rAAV-IFN-α1b or hIFN-α1b treatment led to significantly higher serum levels of IL-12 and GM-CSF in mice compared to respective controls. Our findings suggest that IFN-α1b acts as a multifunctional antitumor agent in NPC, which may have important therapeutic implications.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias Nasofaríngeas
/
Interferon-alfa
/
Antineoplásicos
Idioma:
En
Revista:
Curr Cancer Drug Targets
Assunto da revista:
ANTINEOPLASICOS
/
NEOPLASIAS
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
China