Abstract
Silencing of gene expression by small interfering RNA (siRNA) is promising for drug target discovery and as a therapy. However, a major impediment to the practical use of this technology is an inherent instability of siRNA in the bloodstream, partly due to susceptibility to nucleases. To address this restriction, we evaluated a novel DNA/albumin-based siRNA delivery vehicle that forms a “basket” surrounding the siRNA and provides both steric separation of siRNA from nucleases and local excess of the substrate for nuclease action; thus, slowing the rate of the degradation of siRNA. We found that variation of the albumin concentration in basket construction can significantly decrease the mean size of the basket. Smaller siRNA-containing DNA baskets may increase cellular uptake. We found that the degradation of siRNA is delayed when siRNA is prepared with this delivery vehicle, implying that DNA baskets are a promising technology for further development as the delivery vehicle for siRNA therapeutics.
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© 2010 Springer-Verlag Berlin Heidelberg
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Zirzow, A.C. et al. (2010). Nanoscale “DNA Baskets” for the Delivery of siRNA. In: Herold, K.E., Vossoughi, J., Bentley, W.E. (eds) 26th Southern Biomedical Engineering Conference SBEC 2010, April 30 - May 2, 2010, College Park, Maryland, USA. IFMBE Proceedings, vol 32. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-14998-6_34
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DOI: https://doi.org/10.1007/978-3-642-14998-6_34
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-14997-9
Online ISBN: 978-3-642-14998-6
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