Journal
MACROMOLECULAR BIOSCIENCE
Volume 14, Issue 9, Pages 1291-1298Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mabi.201400113
Keywords
bioengineered silk; endosomal escape; gene delivery; nuclear localization
Funding
- NIH [EB002520]
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Gene delivery research has gained momentum with the use of lipophilic vectors that mimic viral systems to increase transfection efficiency. Maintaining cell viability with these systems remains a major challenge. Therefore, biocompatible biopolymers that are designed by combining non-immunological viral mimicking components with suitable carrier are explored to address these limitations. In the present study, dragline silk recombinant proteins are modified with DNA condensing units and the proton sponge endosomal escape pathway is utilized for enhanced delivery. Transfection efficiency in a COS-7 cell line is enhanced compared to lipofectamine and polyethyleneimine (PEI), as is cell viability.
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