Redox-sensitive dendrimersomes assembled from amphiphilic Janus dendrimers for siRNA delivery
2018
DuThese two authors contributed equally to this work., Xiao-Jiao | Wang, Ze-Yu | Wang, Yu-Cai
The development of delivery systems for small interfering RNA (siRNA) plays a key role in its clinical application. As the major delivery systems for siRNA, cationic polymer- or lipid-based vehicles are plagued by inherent issues. As proof of concept, a disulfide bond-containing amphiphilic Janus dendrimer (ssJD), which could be conveniently synthesized and readily scaled up with high reproducibility, was explored as a siRNA delivery system to circumvent these issues. The cationic hydrophilic head of this Janus dendrimer ensured strong and stable binding with negatively charged siRNA via electrostatic interactions, and the loaded siRNA was rapidly released from the obtained complexes under a redox environment. Therefore, after efficient internalization into tumor cells, redox-sensitive dendrimersome (RSDs)/siRNA exhibited significantly improved gene silencing efficacy.
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