Peer-Reviewed Journal Details
Mandatory Fields
Vinas-Castells, R,Holladay, C,di Luca, A,Diaz, VM,Pandit, A
2009
December
Bioconjugate Chemistry
Snail1 Down-Regulation using Small Interfering RNA Complexes Delivered through Collagen Scaffolds
Published
()
Optional Fields
NONVIRAL GENE DELIVERY POLYAMIDOAMINE DENDRIMERS IN-VIVO EFFICIENT TRANSFER PROTEIN ABUNDANCE DNA DELIVERY EXPRESSION CELLS TRANSFECTION CANCER
20
2262
2269
Control of gene expression via small interfering RNA has enormous potential for the treatment of it variety of diseases, including cancer and Huntington's disease. However, before any therapies can be developed, effective techniques for controlled delivery of these molecules must be devised. In this proof-of-concept study, small interfering RNA was complexed with it polymer and loaded into a biomaterial scaffold, The scaffold was introduced primarily to control the release of the complexes, and the polymer was introduced to improve the transfection efficiency. An optimal dose and complexation ratio were selected, at which more (ban 50% down-regulation of the target gene Snail1was observed in two-dimensional culture. Delayed release of the complexes was observed, and significant sustained down-regulation of Snail1 was seen in a three-dimensional scaffold system after 7 days. Thus, the use of the scaffold altered the transfection profile significantly, demonstrating the feasibility of a collagen scaffold as it controlled release system for delivery of small interfering RNA-dendrimer complexes.
DOI 10.1021/bc900241w
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