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逆转录病毒载体介导的人多药耐药基因(mdr-1)导入小鼠造血细胞的实验研究 被引量:3

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摘要 本文利用逆转录病毒介导的基因转移方法,将人多药耐药基因mdr-1导入小鼠造血细胞,并对转基因造血细胞的耐药性及移植特性进行了初步研究。含人mdr-1cDNA的重组逆转录病毒载体质粒,经脂质体介导的基因转移方法导入包装细胞PA317,再经秋水仙素筛选。获得产逆转录病毒的包装细胞,其病毒滴度可达1.2×105cfu/ml。在含小鼠骨髓贴壁细胞层的长期培养体系中,利用逆转录病毒上清对造血细胞进行转染。通过抗性CFU-CM检测,其基因转移效率可达7.0%。将转基因造血细胞移植经照射预处理的小鼠,可重建受体小鼠造血功能。小鼠造血重建后4个月,其骨髓造血细胞与外周血细胞可检测到人mdr-1cDNA。
出处 《中国应用生理学杂志》 CAS CSCD 1998年第2期113-116,共4页 Chinese Journal of Applied Physiology
基金 国家863计划青年科学基金
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