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Updated: Jun 2, 2026
Preparation and Characterization of SDF-1α-Chitosan-Dextran Sulfate Nanoparticles
Published on: January 22, 2015
Preparation, characterization and transfection efficacy of chitosan nanoparticles containing the intestinal trefoil
Yong Sun1, Shuai Zhang, Xi Peng
1State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Burn Research, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China.
Abstract:
Intestinal trefoil factor (ITF) is a novel polypeptide with potential pharmacological value for the prevention and healing of tissue injury; however, poor production capacity limits its clinical application. Chitosan, as a non-viral vehicle, has been successfully used in gene delivery for its intrinsic characteristics. In this context, we prepared chitosan nanoparticles enwrapping ITF cDNA and investigated its size, zeta potential, stability, release profiles, loading efficiency and loading capacity. Gene transfer capability was assessed in HEK293 cells. The data revealed that the chitosan/DNA nanoparticles were successfully prepared with sizes less than 500 nm and positive zeta potentials. The nanoparticles could protect DNA from nuclease degradation, and release profiles of DNA were dependent on N/P ratios. In addition, transfection efficiency of chitosan/DNA nanoparticles was equivalent to Lipofectamine (TM). Collectively, the results suggest that chitosan/DNA nanoparticles could be a promising method for ITF gene therapy.
