Development of Guanidinium-Rich Protein Mimics for Efficient siRNA Delivery into Human T Cells.

ABSTRACT: RNA interference is gaining attention as a means to explore new molecular pathways and for its potential as a therapeutic; however, its application in immortal and primary T cells is limited due to challenges with efficient delivery in these cell types. Herein, we report the development of guanidinium-rich protein transduction domain mimics (PTDMs) based on a ring-opening metathesis polymerization scaffold that delivers siRNA into Jurkat T cells and human peripheral blood mononuclear cells (hPBMCs). Homopolymer and block copolymer PTDMs with varying numbers of guanidinium moieties were designed and tested to assess the effect cationic charge content and the addition of a segregated, hydrophobic block had on siRNA internalization and delivery. Internalization of fluorescently labeled siRNA

SUBMITTER: deRonde BM 

PROVIDER: S-EPMC4964960 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature