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In vitro and in vivo siRNA Delivery Using Modified Hyperbranched PEI

机译:使用修饰的超支化PEI进行体外和体内siRNA递送

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PEI-PBLG was successfully developed as a non-viral siRNA delivery system. Hyperbranched PEI modified with PBLG significantly reduced the cytotoxicity by shielding the positive charge of PEI. Gene silencing efficiency of PEI-PBLG polymers was more than 4 times higher than that of PEI-25K. PEI-PBLG had high internalization efficiency in siRNA delivery process compared with the common commercial transfected reagents lipofectamine™2000 and PEI-25K. Furthermore, PEI-PBLG/siVEGF complex has been successfully applied to the treatment of tumor dramatically retarding the tumor growth. All the results suggested that PEI-PBLG copolymer had a potential to be used as a low toxic, highly effective siRNA delivery carrier.
机译:PEI-PBLG已成功开发为非病毒siRNA递送系统。 PBLG修饰的超支化PEI通过屏蔽PEI的正电荷而显着降低了细胞毒性。 PEI-PBLG聚合物的基因沉默效率是PEI-25K的4倍以上。与常见的商业转染试剂lipofectamine™2000和PEI-25K相比,PEI-PBLG在siRNA传递过程中具有很高的内在化效率。此外,PEI-PBLG / siVEGF复合物已成功地用于治疗显着阻碍肿瘤生长的肿瘤。所有结果表明,PEI-PBLG共聚物具有用作低毒,高效siRNA传递载体的潜力。

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