Peptide-nucleic acid nanostructures for transfection.

Area of Science:

• Biomedical research
• Molecular biology
• Nanotechnology

Background:

• Nucleic acids are crucial for biomedical applications but require efficient delivery systems.
• Hydrophilic macromolecules face challenges in organism transport, cell targeting, and crossing cellular barriers.

Purpose of the Study:

• To review the optimization protocols for nanosized transfection complexes.
• To highlight the role of peptides in enhancing individual steps of the transfection process.

Main Methods:

• Review of physicochemical properties of transfection vectors (size, charge, composition).
• Analysis of strategies for serum protection, cellular uptake, endosomal escape, and intracellular targeting.
• Emphasis on peptide design for optimizing specific transfection steps.

Main Results:

• Nanosized transfection complexes have been successfully developed and tested.
• Peptide-based strategies significantly enhance cellular uptake and endosomal escape.
• Complex devices integrating multiple functionalities offer improved transfection efficiency.

Conclusions:

• Optimized nanosized complexes and peptide strategies are essential for effective nucleic acid delivery.
• Further development of sophisticated transfection devices holds promise for advanced biomedical applications.