Rare-earth-incorporated polymeric vector for enhanced gene delivery

Area of Science:

• Biomaterials Science
• Gene Therapy
• Nanotechnology

Background:

• Non-viral gene vectors are crucial for safe and efficient gene delivery.
• Polyethylenimine (PEI) and cyclodextrin (CyD) are common components in gene vectors.
• Enhancing transfection efficiency and understanding the underlying mechanisms remain key challenges.

Purpose of the Study:

• To develop a novel metal-incorporated non-viral gene vector using neodymium (Nd) doping.
• To evaluate the gene transfection efficiency of the developed vector (Nd@PEI-CyD).
• To elucidate the mechanism by which Nd enhances cellular uptake and transfection.

Main Methods:

• Synthesis of Nd-doped PEI-CyD (Nd@PEI-CyD) via plasma technology.
• In vitro transfection assays using luciferase and enhanced green fluorescent protein (EGFP) reporter genes.
• Comparative analysis of transfection efficiency against commercial lipofectamine 2000 and non-doped PEI-CyD.

Main Results:

• Nd@PEI-CyD demonstrated significantly higher transfection efficiency compared to lipofectamine 2000 and PEI-CyD.
• Neodymium doping enhanced cellular energy metabolism.
• Nd@PEI-CyD improved the uptake of complexes/plasmid DNA (pDNA) by cells.

Conclusions:

• Nd@PEI-CyD represents a promising new non-viral gene vector with superior transfection capabilities.
• The rare-earth element neodymium plays a critical role in enhancing gene delivery by stimulating cellular processes.
• Metal incorporation offers a novel strategy for developing advanced gene delivery systems.