A Single Methylene Group in Oligoalkylamine-Based Cationic Polymers and Lipids Promotes Enhanced mRNA Delivery
作者:Anita Jarzębińska、Tamara Pasewald、Jana Lambrecht、Olga Mykhaylyk、Linda Kümmerling、Philipp Beck、Günther Hasenpusch、Carsten Rudolph、Christian Plank、Christian Dohmen
DOI:10.1002/anie.201603648
日期:2016.8.8
promise as a new class of biologic therapeutics. However, the intracellular delivery and endosomal escape of mRNA encapsulated in nanoparticles has not been systematically investigated. Here, we synthesized a diverse set of cationic polymers and lipids from a series of oligoalkylamines and subsequently characterized their mRNA delivery capability. Notably, a structure with an alternating alkyl chain length
化学修饰的mRNA的发展作为一种新型的生物疗法具有广阔的前景。然而,尚未系统研究包裹在纳米颗粒中的mRNA的胞内递送和内体逃逸。在这里,我们从一系列的低聚烷基胺合成了各种阳离子聚合物和脂质,随后表征了它们的mRNA传递能力。值得注意的是,胺之间具有交替的烷基链长的结构显示出最高的转染效率,这与在pH 6.2至6.5的窄范围内的高缓冲能力有关。分别施用全身或气雾剂后,仅一个亚甲基的变化导致分别向鼠肝和猪肺的mRNA递送增强。