Effect of vector-expressed siRNA on HBV replication in hepatoblastoma cells

World Journal of Gastroenterology : WJG
Jun LiuYa Zhao

Abstract

To study the effect of siRNA expressed from DNA vector on HBV replication. Human U6 promoter was amplified from genomic DNA and cloned into plasmid pUC18 to construct a mammalian siRNA expression vector pUC18U6. Then oligonucleotides coding for a short hairpin RNA against HBV were cloned into pUC18U6 to form pUC18U6HBVsir which was introduced into 2.2.15 cells by using liposome-mediated transfection. 2.2.15 cells transfected by pUC18U6 and pUC18U6GFPsir which expressed siRNA against green fluorescent protein and mock-transfected 2.2.15 cells were used as controls. Concentration of HBsAg in the supernatant of the transfected cells was measured by using solid-phase radioimmunoassay. A mammalian siRNA expression vector pUC18U6 was constructed successfully. Compared with controls, pUC18U6HBVsir which expressed siRNA against HBV decreased concentration of HBsAg significantly by 44%(P<0.05). HBV replication in 2.2.15 cells is inhibited by siRNA expressed from the DNA vector.

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Jan 10, 2013·Journal of Controlled Release : Official Journal of the Controlled Release Society·Sidi YangEmmanuel A Ho
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Dec 13, 2007·Pharmaceutical Research·Yong ChenRam I Mahato

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