Liposomal spherical nucleic acids

J Am Chem Soc. 2014 Jul 16;136(28):9866-9. doi: 10.1021/ja504845f. Epub 2014 Jul 1.

Abstract

A novel class of metal-free spherical nucleic acid nanostructures was synthesized from readily available starting components. These particles consist of 30 nm liposomal cores, composed of an FDA-approved 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) lipid monomer. The surface of the liposomes was functionalized with DNA strands modified with a tocopherol tail that intercalates into the phospholipid layer of the liposomal core via hydrophobic interactions. The spherical nucleic acid architecture not only stabilizes these constructs but also facilitates cellular internalization and gene regulation in SKOV-3 cells.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Cell Line
  • DNA / chemistry
  • Gene Expression Regulation
  • Intercalating Agents
  • Lipid Bilayers
  • Liposomes / chemistry*
  • Nucleic Acids / chemistry*
  • Phosphatidylcholines / chemistry
  • Tocopherols / chemistry

Substances

  • Intercalating Agents
  • Lipid Bilayers
  • Liposomes
  • Nucleic Acids
  • Phosphatidylcholines
  • DNA
  • 1,2-oleoylphosphatidylcholine
  • Tocopherols