共 33 条
Antisense oligodeoxylutudeotide-conjugated hyaluronic Acid/Protamine nanocomplexes for intracellular gene inhibition
被引:46
作者:
Mok, Hyejung
[1
]
Park, Ji Won
[1
]
Park, Tae Gwan
[1
]
机构:
[1] Korea Adv Inst Sci & Technol, Dept Biol Sci, Taejon 305701, South Korea
关键词:
MOLECULAR-WEIGHT PROTAMINE;
TRANSFECTION EFFICIENCY;
FUSOGENIC PEPTIDE;
NUCLEIC-ACIDS;
DNA DELIVERY;
IN-VIVO;
MICELLES;
COPOLYMERS;
CELLS;
SIRNA;
D O I:
10.1021/bc070111o
中图分类号:
Q5 [生物化学];
学科分类号:
071010 ;
081704 ;
摘要:
Green fluorescent protein (GFP) antisense oligodeoxynucleotide (ODN) was covalently conjugated to hyaluronic acid (HA) via a reducible disulfide linkage, and the HA-ODN conjugate was complexed with protamine to increase the extent of cellular uptake and enhance the gene inhibition efficiency of GFP expression. The HA-ODN conjugate formed more stable polyelectrolyte complexes with prolamine as compared to naked ODN, probably because of its increased charge density. The higher cellular uptake of protamine/HA-ODN complexes than that of protamine/naked ODN complexes was attributed to the formation of more compact nanosized complexes (similar to 200 nm in diameter) in aqueous solution. Protamine/HA-ODN complexes also showed a comparable level of GFP gene inhibition to that of cytotoxic polyethylenimine (PEI)/ODN complexes. Since both HA and prolamine are naturally occurring biocompatible materials, the current formulation based on a cleavable conjugation strategy of ODN to HA could be potentially applied as safe and effective nonviral carriers for ODN and siRNA nucleic acid therapeutics.
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页码:1483 / 1489
页数:7
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