PEI-PEG-chitosan-copolymer-coated iron oxide nanoparticles for safe gene delivery

Synthesis, complexation, and transfection

Forrest M Kievit, Omid Veiseh, Narayan Bhattarai, Chen Fang, Jonathan W. Gunn, Donghoon Lee, Richard G. Ellenbogen, James M. Olson, Miqin Zhang

Research output: Contribution to journalArticle

267 Citations (Scopus)

Abstract

Gene therapy offers the potential of mediating disease through modification of specific cellular functions of target cells. However, effective transport of nucleic acids to target cells with minimal side effects remains a challenge despite the use of unique viral and non-viral delivery approaches. Here, a non-viral nanoparticle gene carrier that demonstrates effective gene delivery and transfection both in vitro and in vivo is presented. The nanoparticle system (NP-CP-PEI) is made of a superparamagnetic iron oxide nanoparticle (NP), which enables magnetic resonance imaging, coated with a novel copolymer (CP-PEI) comprised of short chain polyethylenimine (PEI) and poly(ethylene glycol) (PEC) grafted to the natural polysaccharide, chitosan (CP), which allows efficient loading and protection of the nucleic acids. The function of each component material in this nanoparticle system is illustrated by comparative studies of three nanoparticle systems of different surface chemistries, through material property characterization, DNA loading and transfection analyses, and toxicity assessment. Significantly, NP-CP-PEI demonstrates an innocuous toxic profile and a high level of expression of the delivered plasmid DNA in a C6 xenograft mouse model, making it a potential candidate for safe in vivo delivery of DNA for gene therapy.

Original languageEnglish (US)
Pages (from-to)2244-2251
Number of pages8
JournalAdvanced Functional Materials
Volume19
Issue number14
DOIs
StatePublished - Jul 24 2009

Fingerprint

Polyethyleneimine
Complexation
Iron oxides
Chitosan
iron oxides
genes
Polyethylene glycols
delivery
copolymers
Copolymers
Genes
Nanoparticles
nanoparticles
synthesis
gene therapy
Gene therapy
DNA
deoxyribonucleic acid
Nucleic acids
nucleic acids

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrochemistry

Cite this

PEI-PEG-chitosan-copolymer-coated iron oxide nanoparticles for safe gene delivery : Synthesis, complexation, and transfection. / Kievit, Forrest M; Veiseh, Omid; Bhattarai, Narayan; Fang, Chen; Gunn, Jonathan W.; Lee, Donghoon; Ellenbogen, Richard G.; Olson, James M.; Zhang, Miqin.

In: Advanced Functional Materials, Vol. 19, No. 14, 24.07.2009, p. 2244-2251.

Research output: Contribution to journalArticle

Kievit, FM, Veiseh, O, Bhattarai, N, Fang, C, Gunn, JW, Lee, D, Ellenbogen, RG, Olson, JM & Zhang, M 2009, 'PEI-PEG-chitosan-copolymer-coated iron oxide nanoparticles for safe gene delivery: Synthesis, complexation, and transfection', Advanced Functional Materials, vol. 19, no. 14, pp. 2244-2251. https://doi.org/10.1002/adfm.200801844
Kievit, Forrest M ; Veiseh, Omid ; Bhattarai, Narayan ; Fang, Chen ; Gunn, Jonathan W. ; Lee, Donghoon ; Ellenbogen, Richard G. ; Olson, James M. ; Zhang, Miqin. / PEI-PEG-chitosan-copolymer-coated iron oxide nanoparticles for safe gene delivery : Synthesis, complexation, and transfection. In: Advanced Functional Materials. 2009 ; Vol. 19, No. 14. pp. 2244-2251.
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