Cytoplasmic Reactive Cationic Amphiphiles for Efficient Intracellular Delivery and Self-Reporting Smart Release
Cytoplasmic Reactive Cationic Amphiphiles for Efficient Intracellular Delivery and Self-Reporting Smart Release
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用于高效细胞内递送和自我报告智能释放的细胞质反应性阳离子两亲物
DOI:
10.1021/acs.macromol.5b01110
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发表时间:
2015-08
期刊:
影响因子:
5.5
通讯作者:
Shiyong Liu
中科院分区:
文献类型:
--
作者:
Yongqiang Yu;Yanyan Jiang;Guoying Zhang;Shiyong Liu
Nonviral gene delivery vectors need to overcome both extracellular and intracellular obstacles before releasing plasmid DNA in the transcriptionally active form. However, serum and transport stability desired for cationic polymer/pDNA polyplexes contradicts with the eventual plasmid release requirement; chain lengths of cationic polymer vectors render additional compromise between cytotoxicity and transfection efficiency. Although the introduction of stimuli-triggered degradable cationic polymers can partially solve these issues, the quest for novel design criteria and elucidation of elementary cellular transport pathways are highly desirable. Herein we report a supramolecular approach to construct fluorogenic gene delivery vectors via self-assembly of intracellular milieu-reactive cationic amphiphiles. This new type of micellar nanocarriers can effectively bind pDNA to form polyplexes due to multivalent cationic segments at micellar coronas. Upon cellular uptake and endosomal escape, hydrophobic micellar...
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