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禽源细胞中miRNA表达方法建立及基因沉默效率检测

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摘要 从Genscript软件预测的10个GFP报告基因序列特异性miRNA中随机选择1个,通过PCR法合成相应双链寡核苷酸,插入含鸡U6启动子的pRFPRNAiC载体,获得pRFPRNAiGFP;将pRFPRNAiGFP与peGFP-N1共转染COS-1、293-T、CEL和CEF细胞,在RT-PCR法确定miRNA表达后,根据转染细胞中GFP阳性细胞数及荧光强度变化,比较鸡U6启动子在哺乳动物源和禽源细胞中介导的miRNA沉默效率。结果显示,pRFPRNAiGFP在哺乳动物和禽源细胞中都能表达抑制性miRNA,但在禽源细胞中的基因沉默效率较高。因此,pRFPRNAiC可作为禽源细胞中表达miRNA的载体,GFP则是检测沉默效率的很好的报告基因,本研究为在禽源细胞中进行RNAi研究创建了平台。
出处 《江苏农业科学》 CSCD 北大核心 2010年第6期59-62,共4页 Jiangsu Agricultural Sciences
基金 江苏省自然科学基金企业博士创新项目(编号:BK2009735) 江苏畜牧兽医职业技术学院博士启动基金(编号:ZD200908)
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