Low molecular weight PEI-based biodegradable lipopolymers as gene delivery vectors
作者:Miao-Miao Xun、Xue-Chao Zhang、Ji Zhang、Qian-Qian Jiang、Wen-Jing Yi、Wen Zhu、Xiao-Qi Yu
DOI:10.1039/c2ob27211c
日期:——
Non-viral gene vectors play an important role in the development of gene therapy. In this report, different hydrophobic chains were introduced into low molecular weight (LMW) PEI-based biodegradable oligomers to form a series of lipopolymers (LPs), and their structure–activity relationships were studied. Results revealed that the nine polymers can condense plasmid DNA well to form nanoparticles with
非病毒基因载体在基因治疗的发展中起着重要作用。在本报告中,将不同的疏水链引入基于低分子量(LMW)PEI的可生物降解的低聚物,以形成一系列脂聚合物(LP),并研究了它们的结构-活性关系。结果表明,这九种聚合物可以很好地凝聚质粒DNA,以形成具有适当大小(120–250 nm)和正电动势(+ 25–40 V)的纳米粒子。进行了体外实验,发现在A549细胞中,在有/无血清的情况下,在聚合物/ DNA重量比为0.8的情况下,LP2显示出高得多的转染效率。