highly branched poly(5-amino-1-pentanol-co-1,4-butanediol diacrylate) for high performance gene transfection
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ID: 192434
2017
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Abstract
The top-performing linear poly(β-amino ester) (LPAE), poly(5-amino-1-pentanol-co-1,4-butanediol diacrylate) (C32), has demonstrated gene transfection efficiency comparable to viral-mediated gene delivery. Herein, we report the synthesis of a series of highly branched poly(5-amino-1-pentanol-co-1,4-butanediol diacrylate) (HC32) and explore how the branching structure influences the performance of C32 in gene transfection. HC32 were synthesized by an “A2 + B3 + C2” Michal addition strategy. Gaussia luciferase (Gluciferase) and green fluorescent protein (GFP) coding plasmid DNA were used as reporter genes and the gene transfection efficiency was evaluated in human cervical cancer cell line (HeLa) and human recessive dystrophic epidermolysis bullosa keratinocyte (RDEBK) cells. We found that the optimal branching structure led to a much higher gene transfection efficiency in comparison to its linear counterpart and commercial reagents, while preserving high cell viability in both cell types. The branching strategy affected DNA binding, proton buffering capacity and degradation of polymers as well as size, zeta potential, stability, and DNA release rate of polyplexes significantly. Polymer degradation and DNA release rate played pivotal parts in achieving the high gene transfection efficiency of HC32-103 polymers, providing new insights for the development of poly(β-amino ester)s-based gene delivery vectors.
| Reference Key |
zeng2017polymershighly
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|---|---|
| Authors | ;Ming Zeng;Dezhong Zhou;Singwei Ng;Jonathan O′Keeffe Ahern;Fatma Alshehri;Yongsheng Gao;Luca Pierucci;Udo Greiser;Wenxin Wang |
| Journal | Journal of Fluorescence |
| Year | 2017 |
| DOI |
10.3390/polym9050161
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| URL | |
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