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Updated: May 15, 2026

Delivery of Therapeutic siRNA to the CNS Using Cationic and Anionic Liposomes
Published on: July 23, 2016
siRNA delivery: from basics to therapeutic applications
Tiziana Musacchio1, Vladimir P Torchilin
1Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, 360 Huntington Ave, Boston, MA 02115, USA.
Abstract:
The chance to selectively intervene and stop the development of any gene-dependent disease in different organs and pathologies makes siRNA an ideal therapeutic agent. However, serious issues should be addressed before the real therapeutic use of siRNA. The poor pharmacokinetic properties of siRNA, its short half-life, its low in vivo stability, its fast elimination by kidney filtration and its low transfection efficiency complicate the use of siRNA as a therapeutic molecule. In this review, we will describe the latest and most advanced approaches and strategies undertaken to address these limitations and improve siRNA delivery and its gene silencing efficacy as well as the prospects for its therapeutic applications.
Insights
Small interfering RNA (siRNA) offers therapeutic potential for gene-dependent diseases but faces delivery challenges. This review explores advanced strategies to enhance siRNA stability, delivery, and efficacy for clinical applications.
Area of Science:
- Biotechnology
- Molecular Biology
- Pharmacology
Background:
- Small interfering RNA (siRNA) holds promise for treating gene-dependent diseases.
- Current limitations include poor pharmacokinetics, short half-life, low in vivo stability, rapid renal clearance, and inefficient transfection.
Purpose of the Study:
- To review advanced strategies for overcoming siRNA delivery and efficacy challenges.
- To discuss the therapeutic prospects of improved siRNA formulations.
Main Methods:
- Literature review of recent advancements in siRNA delivery systems.
- Analysis of novel approaches to enhance stability and transfection efficiency.
Main Results:
- Various strategies are being developed to improve siRNA pharmacokinetics and stability.
- Enhanced delivery systems show potential for increased gene silencing efficacy.
Conclusions:
- Addressing siRNA's limitations is crucial for its successful therapeutic application.
- Continued innovation in delivery technologies will unlock siRNA's full clinical potential.
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