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Construction and identification of siRNA eukaryotic expression vectors targeting on TGFβ1, TIMP-1 and TIMP-2 genes in vitro / 中华肝脏病杂志
Zhonghua ganzangbing zazhi ; Zhonghua ganzangbing zazhi;(12): 291-296, 2011.
Article de Zh | WPRIM | ID: wpr-290613
Bibliothèque responsable: WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To construct the siRNA eukaryotic expression vectors targeting on TGFβ1, TIMP-1 and TIMP-2 and to investigate the inhibitory efficiency of target genes expression on rat hepatic stellate cell in vitro.</p><p><b>METHODS</b>The siRNA cDNA sequences of TGFβ1, TIMP-1 and TIMP-2 were designed, synthesized and inserted into plasmid pGenesil-1 respectively to generate eukaryotic expression plasmids. The plasmids were transfected into HSC T6 cells in vitro and the inhibitory efficiency of target genes expression was observed with real-time PCR and Western blot.</p><p><b>RESULTS</b>The eukaryotic expression vectors were constructed successfully. The expressions of TGFβ1 mRNA, TIMP-1 mRNA and TIMP-2mRNA in siRNA-transfected groups were decreased by 63.4% ± 8.0%, 64.5% ± 9.0% and 55.0% ± 17.0% respectively and the expressions of TGFβ1 protein, TIMP-1 protein and TIMP-2 protein were decreased by 57.8% ± 3.0%, 55.1% ± 5.0%, 49.3% ± 1.0% respectively as compared to the control groups.</p><p><b>CONCLUSIONS</b>The siRNA eukaryotic expression vectors constructed targeting on TGFβ1, TIMP-1 and TIMP-2 could reduce the expressions of target genes and they might be able to used for the exploration of new anti-fibrosis drugs genetically.</p>
Sujet(s)
Texte intégral: 1 Indice: WPRIM Sujet Principal: Plasmides / ARN messager / Transfection / Expression des gènes / Lignée cellulaire / Inhibiteur tissulaire de métalloprotéinase-1 / Inhibiteur tissulaire de métalloprotéinase-2 / Petit ARN interférent / Facteur de croissance transformant bêta-1 / Cellules étoilées du foie Type d'étude: Prognostic_studies Limites du sujet: Animals langue: Zh Texte intégral: Zhonghua ganzangbing zazhi Année: 2011 Type: Article
Texte intégral: 1 Indice: WPRIM Sujet Principal: Plasmides / ARN messager / Transfection / Expression des gènes / Lignée cellulaire / Inhibiteur tissulaire de métalloprotéinase-1 / Inhibiteur tissulaire de métalloprotéinase-2 / Petit ARN interférent / Facteur de croissance transformant bêta-1 / Cellules étoilées du foie Type d'étude: Prognostic_studies Limites du sujet: Animals langue: Zh Texte intégral: Zhonghua ganzangbing zazhi Année: 2011 Type: Article