首页> 外文期刊>Biotechnology Progress >Cholic Acid Modified 2 kDa Polyethylenimine As Efficient Transfection Agent
【24h】

Cholic Acid Modified 2 kDa Polyethylenimine As Efficient Transfection Agent

机译:胆酸修饰的2 kDa聚乙烯亚胺作为高效转染剂

获取原文
获取原文并翻译 | 示例
           

摘要

New lipopolymers were synthesized by conjugating cholic acid (ChA) to polyethylenimines (PEI; 2 and 25 kDa) and a polyallylamine (PAA; 15 kDa) via N-acylation to develop effective gene delivery systems. The extent of ChA substitution linearly varied with the feed ratio during synthesis, indicating good control over grafting ratio. While ChA did not affect binding to plasmid DNA (pDNA) for higher molecular weight (MW) polymers, ChA substitution to 2 kDa PEI significantly affected the pDNA binding. Toxicity of the 2 kDa PEI was unaffected by ChA substitution, but it was improved for the higher MW polymers. Using immortal 293T cells and primary cord blood-derived mesenchymal stem cells, low MW (2 kDa) PEI was shown to display much better transfection efficiency as a result of ChA substitution, unlike the higher MW polymers. We conclude that ChA could be a suitable substituent for non-toxic (low MW) PEIs in order to improve their transfection efficiency.
机译:通过将胆酸(ChA)与聚乙烯亚胺(PEI; 2和25 kDa)和聚烯丙胺(PAA; 15 kDa)结合,通过N-酰化反应合成新的脂聚合物,以开发有效的基因传递系统。 ChA取代的程度随合成过程中的进料比率线性变化,表明对接枝比率的良好控制。虽然ChA不会影响更高分子量(MW)聚合物与质粒DNA(pDNA)的结合,但ChA取代2 kDa PEI会显着影响pDNA结合。 2 kDa PEI的毒性不受ChA取代的影响,但对于分子量更高的聚合物,毒性有所改善。使用永生的293T细胞和源自原代脐带血的间充质干细胞,由于ChA取代,低分子量(2 kDa)PEI显示出更好的转染效率,这与更高分子量的聚合物不同。我们得出结论,ChA可能是无毒(低分子量)PEI的合适取代基,以提高其转染效率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号