Targeted nanomedicine: Lessons learned and future directions

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Pharmacology

Background:

• Targeted therapeutic delivery to specific organs, tissues, or cells is essential for enhancing efficacy and reducing adverse effects.
• Nanoparticles offer a promising platform for drug delivery, carrying diverse therapeutic payloads like nucleic acids, small molecules, and proteins.
• Overcoming biological barriers, including systemic circulation, tissue penetration, and intracellular trafficking, is critical for successful nanoparticle-based therapies.

Purpose of the Study:

• To critically review the current advancements in targeted nanoparticle delivery systems.
• To identify and discuss the challenges associated with biological barriers in drug delivery.
• To propose novel strategies for improving cell-specific delivery of therapeutic payloads using nanocarriers.

Main Methods:

• Review of recent literature on nanoparticle functionalization and targeting moieties.
• Analysis of biological barriers impacting nanoparticle biodistribution and cellular uptake.
• Exploration of emerging technologies, including multi-functionalized nanocarriers and machine learning models.

Main Results:

• Significant progress has been made in understanding biological barriers and developing functionalized nanoparticles for targeted delivery.
• New technologies enable more accurate, specific, and highly selective delivery of therapeutic agents.
• Multi-functionalized nanocarriers and machine learning show potential for advancing the field.

Conclusions:

• Continued innovation in nanoparticle design and targeting strategies is crucial for overcoming delivery challenges.
• The integration of advanced approaches like multi-functionalization and AI can lead to safer and more effective cell-specific therapies.
• Future research should focus on developing robust and clinically translatable nanoparticle delivery systems.