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1.3拷贝C基因型HBV转基因小鼠的制备及检测
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1.3拷贝C基因型HBV转基因小鼠的制备及检测
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Journal Article
1.3拷贝C基因型HBV转基因小鼠的制备及检测
2011
Overview
目的制备1.3拷贝C基因型HBV转基因小鼠,为乙肝的防治提供较好的动物模型。方法采用受精卵显微注射法,制备1.3拷贝C基因型HBV转基因小鼠;采用PCR、ELISA、荧光定量PCR和免疫组化方法检测HBV基因在转基因小鼠体内的整合、复制和表达情况。结果共注射受精卵2282枚,成活2024枚,注射成活率88.7%。共移植假孕雌鼠72只,59只怀孕,假孕雌鼠妊娠率81.9%。共产下F0代小鼠185只,PCR检测共有19只整合阳性,阳性率10.3%。血清荧光定量PCR结果显示,其中6只小鼠有HBV DNA复制,拷贝数为102~103拷贝/ml;经传代产下F1代小鼠96只,PCR检测HBV DNA阳性33只,阳性率34.4%。血清荧光定量PCR结果显示,其中10只小鼠有HBV DNA复制,拷贝数为102~103拷贝/ml;F0代和F1代小鼠随机分别各取3只进行肝脏和肾脏HBsAg免疫组化检测结果均为阳性,且肾脏表达高于肝脏。结论 1.3拷贝C基因可以在上述制备成功的C型HBV转基因小鼠体内复制和表达,并且可以遗传给下一代。
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