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Tri-peptide cationic lipids for gene delivery.


ABSTRACT: Several novel tri-peptide cationic lipids were designed and synthesized for delivering DNA and siRNA. They have tri-lysine and tri-ornithine as head groups, carbamate group as linker and 12 and 14 carbon atom alkyl groups as tails. These tri-peptide cationic lipids were prepared into cationic liposomes for the study of the physicochemical properties and gene delivery. Their particle size, Zeta potential and DNA-binding were characterized to show that they were suitable for gene transfection. The further results indicate that these lipids can transfer DNA and siRNA very efficiently into NCI-H460 and Hep-2 tumor cells. The selected lipid, CDO14, was able to deliver combined siRNAs against c-Myc and VEGF for silencing distinct oncogenic pathways in lung tumors of mice, with little in vitro and in vivo toxicity.

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC4285367 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature

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Tri-peptide cationic lipids for gene delivery.

Zhao Yinan Y   Zhang Shubiao S   Zhang Yuan Y   Cui Shaohui S   Chen Huiying H   Zhi Defu D   Zhen Yuhong Y   Zhang Shufen S   Huang Leaf L  

Journal of materials chemistry. B 20150101 1


Several novel tri-peptide cationic lipids were designed and synthesized for delivering DNA and siRNA. They have tri-lysine and tri-ornithine as head groups, carbamate group as linker and 12 and 14 carbon atom alkyl groups as tails. These tri-peptide cationic lipids were prepared into cationic liposomes for the study of the physicochemical properties and gene delivery. Their particle size, Zeta potential and DNA-binding were characterized to show that they were suitable for gene transfection. The  ...[more]

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