Multi-targeting peptides for gene carriers with high transfection efficiency.

Area of Science:

• Biomedical Engineering
• Gene Therapy
• Nanotechnology

Background:

• Non-viral gene carriers are crucial for gene therapy but face challenges like poor cellular uptake, endo/lysosome escape, and nuclear translocation.
• Targeting peptides conjugated to gene carriers can improve gene delivery efficiency to specific cells.

Purpose of the Study:

• To review the recent advancements in multi-targeting peptide immobilized non-viral gene carriers for enhanced gene therapy.
• To highlight their applications in targeting and suppressing tumor cells and promoting endothelial cell transfection and proliferation.

Main Methods:

• Conjugation of targeting peptides onto non-viral gene carriers.
• Evaluation of carrier efficiency in cellular uptake, endo/lysosome escape, and nuclear translocation.
• Assessment of therapeutic outcomes in tumor suppression and endothelialization.

Main Results:

• Peptide functionalization significantly enhances gene delivery efficiency compared to non-targeted carriers.
• Multi-targeting strategies effectively overcome biological barriers in gene delivery.
• Demonstrated efficacy in targeting solid tumors and promoting endothelial cell growth for artificial blood vessels.

Conclusions:

• Peptide-functionalized non-viral gene carriers represent a promising strategy for efficient gene therapy.
• This approach offers potential for improved solid tumor elimination and accelerated endothelialization in vascular applications.