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Nanomedicine for drug targeting: strategies beyond the enhanced permeability and retention effect
Hayley Nehoff1, Neha N Parayath1, Laura Domanovitch1
1Department of Pharmacology and Toxicology, University of Otago, Dunedin, New Zealand.
Abstract:
The growing research interest in nanomedicine for the treatment of cancer and inflammatory-related pathologies is yielding encouraging results. Unfortunately, enthusiasm is tempered by the limited specificity of the enhanced permeability and retention effect. Factors such as lack of cellular specificity, low vascular density, and early release of active agents prior to reaching their target contribute to the limitations of the enhanced permeability and retention effect. However, improved nanomedicine designs are creating opportunities to overcome these problems. In this review, we present examples of the advances made in this field and endeavor to highlight the potential of these emerging technologies to improve targeting of nanomedicine to specific pathological cells and tissues.
Insights
Nanomedicine shows promise for cancer and inflammation, but faces specificity challenges. Improved designs are enhancing targeted delivery to diseased cells and tissues.
Area of Science:
- Biomedical Engineering
- Drug Delivery Systems
- Nanotechnology
Background:
- Nanomedicine offers potential for treating cancer and inflammatory diseases.
- The enhanced permeability and retention (EPR) effect is a key factor in nanomedicine delivery.
- Current limitations of the EPR effect include lack of specificity and premature drug release.
Purpose of the Study:
- To review recent advances in nanomedicine design for improved targeting.
- To highlight emerging technologies that overcome EPR limitations.
- To discuss the potential of enhanced nanomedicine for specific cell and tissue targeting.
Main Methods:
- Review of current literature on nanomedicine design and targeting strategies.
- Analysis of factors limiting the enhanced permeability and retention effect.
- Case studies of novel nanomedicine platforms demonstrating improved specificity.
Main Results:
- Nanomedicine designs are increasingly addressing specificity issues.
- New strategies are emerging to enhance cellular and tissue targeting.
- Advances show potential to overcome limitations of the EPR effect.
Conclusions:
- Improved nanomedicine designs are crucial for effective cancer and inflammation therapy.
- Targeted delivery to specific pathological cells and tissues is becoming more achievable.
- Emerging nanotechnologies hold significant promise for precision nanomedicine.
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