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siRNA - Small Interfering RNAs02:30

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Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
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Preparation of Neutrally-charged, pH-responsive Polymeric Nanoparticles for Cytosolic siRNA Delivery
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Dendrimers for siRNA Delivery.

Swati Biswas1, Vladimir P Torchilin

  • 1Center for Pharmaceutical Biotechnology and Nanomedicine, 360 Huntington Ave, 140 The Fenway, Northeastern University, Boston, MA 02115, USA. v.torchilin@neu.edu.

Pharmaceuticals (Basel, Switzerland)
|November 27, 2013
PubMed
Summary

Dendrimers are versatile macromolecules with unique properties, making them effective carriers for small interfering RNA (siRNA) therapeutics. This review highlights advancements in using dendrimers for successful siRNA delivery and gene regulation.

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Area of Science:

  • Polymer Chemistry
  • Biomedical Engineering
  • Nanotechnology

Background:

  • Dendrimers, or "starburst polymers", possess unique characteristics like monodispersity and numerous functional groups.
  • Their cationic charge facilitates effective condensation with nucleic acids.
  • Dendrimers are increasingly explored as carriers for nucleic acid therapeutics.

Purpose of the Study:

  • To review the advancements in developing dendrimers as carriers for small interfering RNA (siRNA).
  • To highlight the potential of dendrimers in delivering siRNA for gene expression regulation.

Main Methods:

  • Literature review of studies on dendrimer-siRNA complexation.
  • Analysis of dendrimer properties relevant to nucleic acid delivery.
  • Evaluation of in vitro and in vivo studies on dendrimer-mediated siRNA delivery.

Main Results:

  • Dendrimers demonstrate efficient complexation with siRNA due to their cationic nature.
  • The unique structure of dendrimers allows for controlled release and targeted delivery of siRNA.
  • Successful gene silencing has been achieved using dendrimer-siRNA formulations in various studies.

Conclusions:

  • Dendrimers represent a promising platform for developing effective siRNA delivery systems.
  • Further research into dendrimer design and optimization can enhance therapeutic outcomes.
  • Dendrimer-based siRNA carriers hold significant potential for gene therapy applications.