4.7 Article

Acid-Degradable Cationic Dextran Particles for the Delivery of siRNA Therapeutics

Journal

BIOCONJUGATE CHEMISTRY
Volume 22, Issue 6, Pages 1056-1065

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/bc100542r

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Funding

  1. National Heart, Lung, and Blood Institute, National Institutes of Health, Department of Health and Human Services [HHSN268201000043C]
  2. Frechet fund
  3. Deutsche Forschungsgemeinschaft (DFG)
  4. Alexander von Humboldt Foundation (AvH)

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We report a new acid-sensitive, biocompatible, and biodegradable microparticulate delivery system, spermine modified acetalated-dextran (Spermine-Ac-DEX), which can be used to efficiently encapsulate siRNA. These particles demonstrated efficient gene knockdown in HeLa-luc cells with minimal toxicity. This knockdown was comparable to that obtained using Lipofectamine, a commercially available transfection reagent generally limited to in vitro use due to its high toxicity.

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