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TACN-containing cationic lipids with ester bond: Preparation and application in gene delivery

Authors
Journal
Bioorganic & Medicinal Chemistry Letters
0960-894X
Publisher
Elsevier
Publication Date
Volume
21
Issue
23
Identifiers
DOI: 10.1016/j.bmcl.2011.09.098
Keywords
  • Cationic Lipids
  • Triazacyclononane
  • Dna Condensation
  • Gene Delivery

Abstract

Abstract A series of novel cationic lipids based on 1,4,7-triazacyclononane (TACN) with different hydrophobic chains were synthesized via the formation of a biodegradable ester bond. These lipids were found to have good buffering capacity at the pH range of 5.0–6.5, which is similar to that of the acidic endosomal compartments. The liposomes formed from these lipids and DOPE could condense DNA into nanoparticles with proper sizes. In vitro experiments showed moderate to good gene transfection efficiency of the formed lipoplexes. The structure–activity relationships of this type of lipids were discussed.

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