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Molecules 2017, 22(3), 406;

Evaluation of Maltose-Based Cationic Liposomes with Different Hydrophobic Tails for Plasmid DNA Delivery

National and Local Joint Engineering Laboratory for New Petrochemical Materials and Fine Utilization of Resources, Hunan Normal University, Changsha 410081, Hunan, China
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Lothar Elling
Received: 20 January 2017 / Revised: 24 February 2017 / Accepted: 27 February 2017 / Published: 12 March 2017
(This article belongs to the Special Issue Synthesis and Biological Applications of Glycoconjugates)
PDF [3843 KB, uploaded 12 March 2017]


In this paper, three cationic glycolipids with different hydrophobic chains Malt-DiC12MA (IX a), Malt-DiC14MA (IX b) and Malt-DiC16MA (IX c) were constructed by using maltose as starting material via peracetylation, selective 1-O-deacetylation, trichloroacetimidation, glycosylation, azidation, deacetylation, Staudinger reaction, tertiary amination and quaternization. Target compounds and some intermediates were characterized by 1H-NMR, 13C-NMR, 1H-1H COSY and 1H-13C HSQC. The results of gel electrophoresis assay, atomic force microscopy images (AFM) and dynamic light scattering (DLS) demonstrate that all the liposomes could efficiently bind and compact DNA (N/P ratio less than 2) into nanoparticles with proper size (88 nm–146 nm, PDI < 0.4) and zeta potential (+15 mV–+26 mV). The transfection efficiency and cellular uptake of glycolipids in HEK293 cell were evaluated through the enhanced green fluorescent protein (EGFP) expression and Cy3-labeled pEGFP-C1 (Enhanced Green Fluorescent Protein plasmid) images, respectively. Importantly, it indicated that Malt-DiC14MA exhibited high gene transfer efficiency and better uptake capability at N/P ratios of 8:1. Additionally, the result of cell viability showed glycolipids exhibited low biotoxicity and good biocompatibility by thiazolyl blue tetrazolium bromide (MTT) assay. View Full-Text
Keywords: maltose-based cationic lipid; synthesis; transfection assay maltose-based cationic lipid; synthesis; transfection assay

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Li, B.; Deng, L.; Liu, M.; Zeng, Y. Evaluation of Maltose-Based Cationic Liposomes with Different Hydrophobic Tails for Plasmid DNA Delivery. Molecules 2017, 22, 406.

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