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小鼠端粒酶蛋白亚单位重组腺病毒载体的构建及鉴定
Authors
冯炼强
姜楠
+6 more
李华
杨扬
蔡常洁
许赤
陆敏强
陈规划
Publication date
1 January 2006
Publisher
Editorial Office of Journal of Sun Yat-sen University
Abstract
【目的】构建小鼠端粒酶蛋白亚单位(mouse telomerase reverse transcriptase,mTERT)基因重组腺病毒载体,为下一步研究其体外表达和动物实验研究提供基础。【方法】从肝癌细胞中提取总RNA。采用RT-PER技术扩增mTERT的基因编码区序列,将序列定向克隆至真核表达载体pAC,将此表达质粒与腺病毒重组质粒pJM17共同转染293细胞,经同源重组产生重组腺病毒载体Ad-mTERT,纯化后的重组腺病毒载体Ad-mTERT在293细胞大量扩增并通过氯化铯密度梯度离心法纯化,测定病毒滴度。【结果】PCR及酶切证实:mTERTDNA正确克隆到穿梭质粒pAC中,带mTERTDNA的表达盒成功重组到腺病毒载体基因组E1A缺失区,并在293细胞中成功包装出具有感染活性的重组腺病毒Ad-mTERT。【结论】成功构建了小鼠TERT基因重组腺病毒载体,为研究其用于肿瘤的基因治疗奠定基础
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Last time updated on 16/10/2024