| A small yeast RNA inhibits HCV IRES mediated translation and inhibits replication of poliovirus in vivo |
| Xue-SongLiang Jian-QiLian Yong-XingZhou Qing-HeNie Chun-QiuHao |
| 关键词：脊髓灰质炎病毒 病毒复制 丙型肝炎病毒 体内实验 肝癌 逆转录聚合酶链反应 |
| 主要内容：AIM:To investigate the anti-virus infection activity of internari bosome entry site (IRES) specific inhibitor RNA (IRNA).METHODS: IRNA eukaryotic vector pcRz-IRNA or mIRNA eukaryotic vector pcRz-mIRNA was tansfected into human hepatocarcinoma cells (HHCC), then selected with neomycin G418 for 4 to 8 weeks, and then infected with polio virus vaccinas line. The cytopethogenesis effect was investigated and the cell extract was collected. At last the polio virus titer of different cells was determined by plaque assay.RESULTS: Constitutive expression of IRNA was not detrimental to cell growth. HCV IRES-mediated capindependent translation was markedly inhibited in cells constitutively expressing IRNA compared to control hepatoma cells. However, cap-dependent translation was not significantly affected in these cell line. Additionally, HHCC cells constitutively expressing IRNA became refractory to infection of polio virus.CONCLUSION: IRES specific IRNA can inhibit HCV IRES mediated translation and poliovirus replication. |
| 《世界胃肠病学杂志：英文版》 2003,9(5).-1008-1013 |
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