Carbohydrate polymers for nonviral nucleic acid delivery

Area of Science:

• Biomaterials Science
• Polymer Chemistry
• Gene Therapy

Background:

• Nucleic acid delivery is crucial for gene therapy and other treatments.
• Traditional viral vectors face safety concerns, driving the need for non-viral alternatives.
• Carbohydrates offer biocompatible and modifiable platforms for nucleic acid delivery vehicles.

Purpose of the Study:

• To review the current state of carbohydrate-based polymeric vehicles for nucleic acid delivery.
• To highlight recent successes in preclinical and clinical applications.
• To discuss the impact of carbohydrate structure and charge on delivery efficiency and biocompatibility.

Main Methods:

• Review of literature on carbohydrate-based polymers for nucleic acid delivery.
• Analysis of natural polysaccharides (chitosan, hyaluronan, pullulan, dextran, schizophyllan) as scaffolds.
• Discussion of copolymerized carbohydrates and unique structures like cyclodextrin-based polymers.
• Examination of in vitro and in vivo preclinical data, including transfection efficiency and biocompatibility.

Main Results:

• Natural polysaccharides provide versatile scaffolds with tunable properties for nucleic acid delivery.
• Copolymerization of carbohydrates with synthetic polymers enhances transfection and biocompatibility.
• Cyclodextrin-based scaffolds show promise in vivo and in clinical settings.
• Carbohydrate structure and charge significantly influence transfection efficiency.

Conclusions:

• Carbohydrate-based polymeric vehicles represent a significant advancement in non-viral nucleic acid delivery.
• These materials offer promising therapeutic potential for treating human diseases.
• Further development of these novel vehicles is expected to accelerate gene therapy applications.