Related Experiment Video

Updated: Jun 27, 2026

Long-term Silencing of Intersectin-1s in Mouse Lungs by Repeated Delivery of a Specific siRNA via Cationic Liposomes. Evaluation of Knockdown Effects by Electron Microscopy
15:55

Long-term Silencing of Intersectin-1s in Mouse Lungs by Repeated Delivery of a Specific siRNA via Cationic Liposomes. Evaluation of Knockdown Effects by Electron Microscopy

Published on: June 21, 2013

Targeting the lung using siRNA and antisense based oligonucleotides

Sterghios A Moschos1, Karen Spinks, Andrew E Williams

  • 1Respiratory Research Group, Wythenshawe Hospital, School of Translational Medicine, University of Manchester, M23 9LT, UK.

Current Pharmaceutical Design
|December 17, 2008
PubMed

Insights

The lung is a promising target for oligonucleotide therapeutics via inhalation. This review explores challenges in antisense and siRNA delivery, stability, and immune responses for effective lung-targeted treatments.

Area of Science:

  • Pharmacology
  • Molecular Biology
  • Respiratory Medicine

Background:

  • The lung's large surface area and accessibility via inhalation make it an attractive site for topical drug delivery.
  • Oligonucleotide-based therapeutics, including antisense and small interfering RNA (siRNA), show potential for treating lung diseases.

Purpose of the Study:

  • To critically review the challenges and opportunities for using antisense and siRNA therapeutics targeting the lung.
  • To evaluate key factors influencing the efficacy and safety of inhaled oligonucleotide therapies.

Main Methods:

  • Literature review focusing on in vivo target validation for antisense and siRNA approaches.
  • Analysis of factors including delivery, distribution, stability, off-target effects, and immunogenicity.
  • Discussion on the selection of optimal messenger RNA (mRNA) targets for therapeutic intervention.

Main Results:

  • Inhalation offers a viable route for topical lung delivery of oligonucleotide therapeutics.
  • Significant challenges remain in achieving effective delivery, distribution, and stability within lung tissues.
  • Off-target effects and unwanted immune responses are critical safety considerations for these therapies.

Conclusions:

  • Despite challenges, the lung presents a significant therapeutic target for oligonucleotide-based drugs.
  • Further research is needed to optimize delivery systems and overcome biological barriers for successful clinical application.
  • Careful target selection and mitigation of adverse effects are crucial for developing safe and effective lung oligonucleotide therapies.

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