Hepatitis C virus strain JFH1 down-regulates expression of growth arrest and DNA damage-inducible gene 45a in human hepatoma Huh7.5.1 cells / 中华肝脏病杂志
Chinese Journal of Hepatology
;
(12): 807-810, 2012.
Artigo
em Chinês
| WPRIM
| ID: wpr-296856
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effect of hepatitis C virus (HCV) strain JFH1 on expression of the human gene, growth arrest and DNA damage-inducible gene 45 alpha (GADD45a), in infected hepatoma cells.</p><p><b>METHODS</b>HCV JFH1 RNA-containing supernatants were used to infect the human hepatoma cell line, Huh7.5.1; infection was confirmed by Western blot detection of the HCV-encoded non-structural 5A (NS5A) protein and core protein. Infection-induced changes in GADD45a mRNA and protein expressions were measured by real time PCR using SYBR Green and Western blotting, respectively. Significance of differences between the levels detected in JFH1-infected or uninfected Huh7.5.1 cells was analyzed by single factor analysis of variance testing.</p><p><b>RESULTS</b>The HCV infection system was successfully established, as evidenced by expression of NS5A protein and core protein. The GADD45a mRNA and protein levels were significantly down-regulated in JFH1-infected Huh7.5.1 cells, by 0.57+/-0.09 and 0.28+/-0.03, respectively, as compared to levels in uninfected Huh7.5.1 cells (F values were 75.407 and 560.04, respectively; P less than 0.01).</p><p><b>CONCLUSION</b>HCV inhibits the mRNA transcription and protein expression of host GADD45a, which may contribute to the pathogenesis of hepatocellular carcinoma caused by HCV infection.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Transcrição Gênica
/
Dano ao DNA
/
Classificação
/
Hepacivirus
/
Linhagem Celular Tumoral
/
Peptídeos e Proteínas de Sinalização Intracelular
/
Metabolismo
Limite:
Humanos
Idioma:
Chinês
Revista:
Chinese Journal of Hepatology
Ano de publicação:
2012
Tipo de documento:
Artigo
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