Document Detail

Cationic lipids containing cyclen and ammonium moieties as gene delivery vectors.
MedLine Citation:
PMID:  22321835     Owner:  NLM     Status:  Publisher    
In this study, two novel cationic lipids containing protonated cyclen and quaternary ammonium moieties were designed and synthesized as non-viral gene delivery vectors. The structures of the two lipids differ in their hydrophobic region (cholesterol or diosgenine). Cationic liposomes were easily prepared from the lipids individually or from the mixtures of each cationic lipid and dioleoylphosphatidyl ethanolamine (DOPE). Several studies including DLS, gel retardation assay, ethidium bromide intercalation assay suggest that these amphiphilic molecules are able to bind and compact DNA into nanometer particles which can be used as non-viral gene delivery agents. Our results from in vitro transfection show that in association with DOPE, two cationic lipids can induce effective gene transfection in HEK 293 cells, though the gene transfection efficiencies of two cationic lipids were found to be lower than that of lipofectamine 2000(TM) . Besides, different cytotoxicity was found for two lipoplexes. This study demonstrates that the title cationic lipids have large potential to be efficient non-viral gene vectors. © 2012 John Wiley & Sons A/S.
Qing-Dong Huang; Jiang Ren; Wen-Jing Ou; Yun Fu; Mao-Qiang Cai; Ji Zhang; Wen Zhu; Xiao-Qi Yu
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-9
Journal Detail:
Title:  Chemical biology & drug design     Volume:  -     ISSN:  1747-0285     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101262549     Medline TA:  Chem Biol Drug Des     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 John Wiley & Sons A/S.
Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610064, P. R. China.
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