牛PSMA5基因RNA干扰载体的构建与筛选及在奶牛乳腺上皮细胞中的表达

Chinese Journal of Veterinary Science(2016)

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Abstract
设计4条待选的shRNA序列以及1条阴性对照序列,构建RNA干扰载体,然后转染到奶牛乳腺上皮细胞(MAC-T)中,最后利用实时荧光定量PCR和Western blotting技术分别检测蛋白酶体α5亚基(PSMA5)在奶牛乳腺上皮细胞(MAC-T)中mRNA和蛋白水平的表达.结果显示:转染shRNA-1组,shRNA-3组和shRNA-4组的PSMA5基因相对表达量显著低于阴性对照组(P<0.05),且shRNA-4组的PSMA5基因相对表达量最低.结果表明:本试验成功构建并筛选出了PSMA5基因RNA干扰载体,并在奶牛乳腺上皮细胞(MAC-T)中成功表达.
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