Targeting Strategies for Tissue-Specific Drug Delivery

Area of Science:

• Pharmacology
• Drug Delivery
• Biomedical Engineering

Background:

• Systemic drug administration faces challenges with off-target effects, impacting therapeutic efficacy and toxicity.
• Biological barriers impede effective tissue-specific drug delivery, necessitating advanced strategies.
• Overcoming these barriers is crucial for developing safer and more effective therapies.

Purpose of the Study:

• To review key advances and emerging concepts in tissue-specific drug delivery.
• To discuss strategies for overcoming biological barriers to drug delivery.
• To explore the clinical translation of various drug targeting approaches.

Main Methods:

• Literature review of preclinical and clinical studies on drug targeting strategies.
• Analysis of small molecule-, nucleic acid-, peptide-, antibody-, and cell-based delivery systems.
• Discussion of biological barriers and methods to overcome them.

Main Results:

• Multiple targeting strategies have been developed over three decades.
• These strategies include small molecule, nucleic acid, peptide, antibody, and cell-based approaches.
• Significant progress has been made in modulating drug delivery for specific tissues.

Conclusions:

• Tissue-specific drug delivery holds significant promise for reducing off-target effects and toxicity.
• Continued research into overcoming biological barriers is essential for therapeutic advancement.
• Translating these targeting strategies into clinical practice is a key focus for future drug development.