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Porous Silicon Microparticles for Delivery of siRNA Therapeutics
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Versatile electrostatically assembled polymeric siRNA nanovectors: Can they overcome the limits of siRNA tumor

S Ben Djemaa1, E Munnier1, I Chourpa1

  • 1Université de Tours, EA6295 Nanomédicaments et Nanosondes, 31 Avenue Monge, 37200 Tours, France.

International Journal of Pharmaceutics
|June 15, 2019
PubMed

Insights

Polymer-based nanovectors efficiently deliver small interfering RNA (siRNA) cancer therapeutics by overcoming biological barriers. These electrostatically assembled polymeric siRNA nanovectors (EPSN) enhance tumor accumulation and gene silencing efficacy.

Area of Science:

  • Biotechnology
  • Nanomedicine
  • Cancer Therapeutics

Background:

  • Small interfering RNA (siRNA) cancer therapies face delivery challenges like degradation and poor cellular uptake.
  • Existing delivery systems struggle to overcome extra- and intracellular barriers effectively.

Purpose of the Study:

  • To review polymer-based siRNA nanovectors for cancer therapy.
  • To highlight the advantages of electrostatically assembled polymeric siRNA nanovectors (EPSN) in overcoming siRNA delivery limitations.

Main Methods:

  • Focus on polymer-based nanovectors utilizing electrostatic assembly for siRNA loading.
  • Discussion of nanovector properties influencing siRNA half-life, tumor targeting, and cellular delivery.
  • Evaluation of structural versatility's impact on protein down-regulation.

Main Results:

  • EPSN offer a promising strategy to protect siRNA from degradation and premature clearance.
  • These nanovectors enhance tumor-specific delivery, cellular uptake, and endosomal escape.
  • Nanovector structure versatility correlates with improved gene silencing efficiency.

Conclusions:

  • Electrostatically assembled polymeric siRNA nanovectors (EPSN) are effective tools for cancer therapy delivery.
  • EPSN overcome key barriers, improving siRNA stability, targeting, and therapeutic outcomes.
  • Further research into nanovector structural modifications can optimize gene silencing for cancer treatment.
Keywords:
Electrostatically assembled polymeric siRNA nanovectors (EPSN)Intracellular traffickingNanovector designProtein down-regulationsiRNA delivery

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