Targeting materials and strategies for RNA delivery

Area of Science:

• Biotechnology
• Pharmacology
• Molecular Biology

Background:

• RNA therapeutics show promise for cancers, infectious, and metabolic diseases.
• The success of mRNA vaccines highlights the medical value of RNA drugs.
• Targeted delivery is crucial for RNA drug efficacy and safety but lacks clear guidelines.

Purpose of the Study:

• To review mechanisms of targeted RNA delivery systems.
• To summarize key factors influencing RNA drug targeting.
• To overview current RNA-based drugs in clinical trials and their tissue tropism.

Main Methods:

• Review of mechanisms of action for targeted RNA delivery systems.
• Analysis of four key factors influencing RNA drug targeting: vector materials, chemical structures, administration routes, and physicochemical properties.
• Overview of RNA-based drugs in clinical trials, focusing on design and tissue tropism.

Main Results:

• Identified four critical factors (vector materials, chemical structures, administration routes, physicochemical properties) influencing organ/tissue tropism for RNA drugs.
• Detailed mechanisms of action for various targeted RNA delivery systems.
• Summarized design strategies and tissue tropism applications of RNA drugs in clinical trials.

Conclusions:

• Understanding targeted delivery principles is essential for advancing RNA therapeutics.
• Key factors influencing tropism must be considered for successful clinical translation.
• This review provides a framework to accelerate the development of future RNA drugs for diverse diseases.