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作 者:崔少强[1] 丛薇[1] 焦晔[1] 刘明秋[1] 严维耀[1] 郑兆鑫[1]
出 处:《复旦学报(自然科学版)》2008年第5期561-567,共7页Journal of Fudan University:Natural Science
基 金:上海市国内科技合作资助项目(055458013)
摘 要:利用shRNA(short-hairpin RNA)表达质粒在HEK-293细胞上评估了多个dsRNA诱发产生干扰素(IFN)的能力.结果显示,p3D3(19 nt),pPol(56 nt),p21NT(21 nt)和p63NT(63 nt)能够诱发IFN-β的产生,其中p3D3和p63NT能强烈诱导IFN-β;而p3D1(19 nt),p3D2(19 nt)和pLacZ(83 nt)没有明显的IFN-β诱发能力.结果显示,诱发干扰素产生的能力与dsRNA的片段长度没有关系,可能与其序列有一定相关性.Several plasmids which can express short-hairpin RNAs (shRNAs) were constructed to evaluate their potentials of activating IFN system in HKE-293 cells. The results showed that shRNA expression plasmids p3D3 (19 nt) ,pPol (56 nt), p21NT (21 nt) and p63NT (63 nt) could induce interferon-β expression, especially p3D3 and p63NT exhibited great potentials of interferon-β activation. While p3D1 (19 nt), p3D2 (19 nt) and pLacZ (83 nt) did not show marked potentials of inducing interferon-β expression. The results suggested that the ability to activate interferon expression had no relations with the length of dsRNA, but was more likely to be sequence-dependent.
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