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A facile preparation of novel multifunctional vectors by non-covalent bonds for co-delivery of doxorubicin and gene

机译:通过非共价键简便地制备新型多功能载体以共同递送阿霉素和基因

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摘要

In this study, novel multifunctional ternary complexes of biotinylated transferrin-avidin-biotin-poly(ethylene glycol)-poly(l-glutamate acid)/poly(2-(2-aminoethylamino) ethyl methacrylate)/doxorubicin-poly(l-aspartic acid)/pDNA (TAB/PIC-D/pDNA complexes) were prepared based on polyion complex micelles (PIC) and the avidin-biotin system, which aimed to target co-delivery of anti-cancer doxorubicin and gene. Cytotoxicity studies revealed that PIC-D could have anti-tumor effect on HeLa cells and HepG2 cells; TAB coating could increase the biocompatibility of PIC-D/pDNA complexes and the targeting delivery efficiency of doxorubicin. TAB/PIC-D/pDNA complexes possessed higher transfection efficiency than the unmodified complexes in serum, and transferrin could enhance luciferase expression in HeLa cells and HepG2 cells. Furthermore, confocal laser scanning microscopy showed that doxorubicin and gene could be delivered into HepG2 cells simultaneously by TAB/PIC-D/pDNA complexes. The formation of the ternary complexes provides a facile approach to constructing a multifunctional delivery system for targeted co-delivery of anticancer drugs and gene.
机译:在这项研究中,生物素化的转铁蛋白-亲和素-生物素-聚(乙二醇)-聚(1-谷氨酸)/聚(2-(2-氨基乙基氨基)甲基丙烯酸乙酯)/阿霉素-聚(1-天冬氨酸)的新型多功能三元复合物氨基酸)/ pDNA(TAB / PIC-D / pDNA复合物)是基于聚离子复合物胶束(PIC)和抗生物素蛋白-生物素系统制备的,旨在靶向抗癌阿霉素和基因的共同递送。细胞毒性研究表明,PIC-D对HeLa细胞和HepG2细胞具有抗肿瘤作用。 TAB涂层可以提高PIC-D / pDNA复合物的生物相容性和阿霉素的靶向递送效率。 TAB / PIC-D / pDNA复合物比未修饰的血清复合物具有更高的转染效率,转铁蛋白可以增强HeLa细胞和HepG2细胞中的荧光素酶表达。此外,共聚焦激光扫描显微镜显示,阿霉素和基因可以通过TAB / PIC-D / pDNA复合物同时传递到HepG2细胞中。三元复合物的形成为构建多功能递送系统提供了一种简便的方法,该系统用于靶向共同递送抗癌药物和基因。

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