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耦联CD133/ABCG2抗体的荧光磁性纳米微粒的制备与靶向性实验 被引量:1

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摘要 目的制备耦联抗CD133及ABCG2抗体的荧光Fe3O4纳米微粒,用于肝癌的早期诊断和癌细胞转移后的定位。方法采用共沉淀法制备Fe3O4磁性纳米粒子,在其外面包裹羧基化葡聚糖,然后与带有荧光基团的CD133及ABCG2抗体耦联,制备成一种可以检测CD133和ABCG2双阳性细胞的免疫磁性纳米微粒,继而检测其表征和抗性;体外检测制备的磁性纳米微粒对人SP细胞的靶向性;肝癌SP细胞裸鼠皮下种植制作肝癌模型,尾静脉注射经筛选的纳米微粒,用荧光显微镜观察磁性纳米微粒的体内靶向作用。结果成功制备得到了具有磁性、粒度均匀的磁性纳米微粒,且在体内外均有荧光和对肿瘤干细胞的靶向性。结论成功制备得到了可用于检测CD133及ABCG2双阳性肝癌干细胞的免疫荧光磁性纳米微粒。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2015年第11期2936-2938,共3页 Chinese Journal of Gerontology
基金 江西省教育厅科学技术研究项目(No.GJJ 11309) 江西省卫生厅科技计划项目(No.20131078) 江西省科技计划项目(No.20132BBG70048) 江西省自然科学基金资助项目(No.20114BAB205017)
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