[Effect of siRNA-mediated inhibition of nuclear transcription factor-kappa B on apoptosis of hepatocarcinoma cells].
Zhonghua Gan Zang Bing Za Zhi
; 18(8): 609-13, 2010 Aug.
Article
em Zh
| MEDLINE
| ID: mdl-20825717
ABSTRACT
OBJECTIVE:
To investigate the effect of siRNA-mediated inhibition of NF-κB on apoptosis of hepatocarcinoma cells.METHODS:
Specific small interfering RNA Targeting NF-κB gene was synthesized and transfected into HepG2 cells by liposomes. Nested RT-PCR and quantitative RT-PCR were used to detect the mRNA expression of NF-κB. Immunohistochemistry, enzyme-linked immunosorbent assay and Western blot were performed to examine the protein expression of NF-κB. Annexin V-FITC was used to test cell apoptosis.RESULTS:
The expression of NF-κB in HepG2 cells (1.13+/-0.03) was significantly higher (t=27.02, P<0.05) than that in normal hepatocytes (0.29+/-0.07). The down-regulation of NF-κB expression was depended on the dosage of siRNA and the time after transfection. 72 h after siRNA transfection, NF-κB expression reduced by 93% and 62% at the mRNA and protein levels, respectively. The apoptosis of HepG2 cells increased by 85% with NF-κB inhibition.CONCLUSIONS:
NF-κB is abnormally active in HepG2 cells and NF-κB inhibition mediated by siRNA promotes HepG2 cells apoptosis. It suggested that NF-κB could be a potential target for HCC prevention gene therapy.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
NF-kappa B
/
Apoptose
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Carcinoma Hepatocelular
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RNA Interferente Pequeno
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Neoplasias Hepáticas
Limite:
Humans
Idioma:
Zh
Revista:
Zhonghua Gan Zang Bing Za Zhi
Assunto da revista:
GASTROENTEROLOGIA
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
China