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Effect of short interfering RNAs on hepatitis C Virus 5' untranslated region expression / 中华实验和临床病毒学杂志
Chinese Journal of Experimental and Clinical Virology ; (6): 319-321, 2007.
Article Dans Chinois | WPRIM | ID: wpr-248767
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate interfering effect of several short interfering RNAs (siRNA) on HCV 5' untranslated region(5' UTR).</p><p><b>METHODS</b>The green fluorescent protein (GFP) was used as reporter gene. A fused gene of HCV-5'UTR and GFP was constructed. It was cloned into the plasmid pCDNA3.1 named as pcDNA-HCV-5'UTR-GFP. Three siRNAs were designed and transfected into HepG2 cells with pcDNA-HCV-5'UTR-GFP. The change of the fluorescence intensity of HepG2 cells was shown by fluorescence microscopy and numerically detected under 488 nm wave length by flow cytometry.</p><p><b>RESULTS</b>The fused gene of HCV-5'UTR and GFP was successfully constructed. The seven groups displayed inhibitory effects on the gene expression of GFP. The inhibition rates of siRNA A, B and C were 68.4 percent, 72.6 percent and 75.6 percent, respectively. The inhibitory rates of siRN A + B, siRN B +C and siRN A +C were 91.8 percent, 87.2 percent and 92.4 percent, respectively. The inhibitory rates of siRN A+B +C was the highest, up to 95.7 percent.</p><p><b>CONCLUSION</b>These siRNAs could inhibit expression of HCV 5'UTR gene, the inhibitory effect of combined siRNA was better than that of single siRNAs.</p>
Sujets)
Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Transfection / Hepacivirus / Régions 5&apos; non traduites / Petit ARN interférent / Interférence par ARN / Protéines à fluorescence verte / Génétique langue: Chinois Texte intégral: Chinese Journal of Experimental and Clinical Virology Année: 2007 Type: Article

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Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Transfection / Hepacivirus / Régions 5&apos; non traduites / Petit ARN interférent / Interférence par ARN / Protéines à fluorescence verte / Génétique langue: Chinois Texte intégral: Chinese Journal of Experimental and Clinical Virology Année: 2007 Type: Article