Principles of electrostatic interactions and self-assembly in lipid/peptide/DNA systems: applications to gene delivery.
Recently, great progress has been achieved in development of a wide variety of formulations for gene delivery in vitro and in vivo, which include lipids, peptides and DNA (LPD). Additionally, application of natural histone-DNA complexes (chromatin) in combination with transfection lipids has been suggested as a potential route for gene delivery (chromofection). However, the thermodynamic mechanisms responsible for formation of the ternary lipid-peptide-DNA supramolecular structures have rarely been analyzed. Using recent experimental studies on LPD complexes (including mixtures of chromatin with cationic lipids) and general polyelectrolyte theory, we review and analyze the major determinants defining the internal structure, particle composition and size, surface charge and ultimately, transfection properties of the LPD formulations.
Division of Structural Biology and Biochemistry, School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, 637551, Singapore.
Nikolay V
NV
Berezhnoy
Division of Structural Biology and Biochemistry, School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, 637551, Singapore.
Nikolay
N
Korolev
Division of Structural Biology and Biochemistry, School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, 637551, Singapore. Electronic address: larsnor@ntu.edu.sg.
Lars
L
Nordenskiöld
D000818:Animals; D004247:DNA / Q000737:chemistry*; D018014:Gene Transfer Techniques; D006801:Humans; D008055:Lipids / Q000737:chemistry*; D010316:Particle Size; D010455:Peptides / Q000737:chemistry*; D055672:Static Electricity; D013499:Surface Properties; D013816:Thermodynamics
D008055:Lipids; D010455:Peptides; D004247:DNA
Chromatin; DNA condensation; Ligand–DNA interaction; Transfection