Sucrose ester embedded lipid carrier for DNA delivery
Yinan Zhao1, Wanting Ma1, Kexin Tian2
1Key Laboratory of Biotechnology and Bioresources Utilization of Ministry of Education, College of Life Sciences, Dalian Minzu University, Dalian 116600, China.
Summary
Sucrose esters (SEs) enhance gene delivery by improving liposome-DNA interactions. Sucrose laurate (COL-6) demonstrated optimal DNA binding and stability, leading to the highest delivery efficiency.
Area of Science:
- Biochemistry
- Materials Science
- Gene Therapy
Background:
- Sucrose esters (SEs) show promise for nucleic acid delivery due to favorable properties and biosafety.
- The structural impact of SEs on gene delivery efficiency remains unclear.
Purpose of the Study:
- To investigate the mechanism by which SE structure influences liposome-DNA interactions and gene delivery efficiency.
- To determine the optimal SE structure for enhanced DNA delivery via liposomal formulations.
Main Methods:
- Constructed liposomes incorporating peptide lipids and various SEs.
- Analyzed the effects of SEs on liposome-DNA binding rate, affinity, and DNA structural integrity.
- Evaluated the membrane properties and stability of SE-containing liposomes.
Main Results:
- SE addition modulated liposome-DNA binding rates, decreasing with longer carbon chains.
- SEs influenced DNA binding sites and affinity, promoting liposome aggregation and DNA encapsulation.
- Sucrose laurate (COL-6) exhibited superior DNA affinity and promoted optimal liposome membrane rigidity-flexibility balance, resulting in the highest DNA delivery efficiency.
Conclusions:
- SE structure significantly impacts liposome-DNA interactions and gene delivery efficacy.
- COL-6 offers a promising candidate for efficient and safe gene delivery systems.
- This study provides a foundation for designing advanced SE-based gene delivery vehicles.
