Magnetic and acoustically active microbubbles loaded with nucleic acids for gene delivery

Dialechti Vlaskou, Olga Mykhaylyk, Christian Plank

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

6 Scopus citations

Abstract

Targeted gene or drug delivery aims to locally accumulate the active agent and achieve the maximum local therapeutic effect at the target site while reducing unwanted effects at nontarget sites. A further development of the magnetic drug-targeting concept is combining it with an ultrasound-triggered delivery using magnetic microbubbles as a carrier for gene or drug delivery. For this purpose, selected magnetic nanoparticles (MNPs), phospholipids, and nucleic acid are assembled in the presence of perfluorocarbon gas into flexible formulations of magnetic lipospheres or microbubbles. This chapter describes the protocols for preparation of magnetic lipospheres and microbubbles for nucleic acid delivery, and it also describes the procedures for labeling the components of the bubbles (lipids, MNPs, and nucleic acids) for the visualization of the vectors and their characterization, such as magnetic responsiveness and ultrasound contrast effects. Protocols are given for the transfection procedure in adherent cells, evaluation of the association of the magnetic vectors with the cells, reporter gene expression analysis, and cell viability assessment.

Original languageEnglish
Title of host publicationMethods in Molecular Biology
PublisherHumana Press Inc.
Pages253-290
Number of pages38
DOIs
StatePublished - 2019
Externally publishedYes

Publication series

NameMethods in Molecular Biology
Volume1943
ISSN (Print)1064-3745

Keywords

  • Gene delivery
  • Magnetic nanoparticles
  • Magnetofection
  • Microbubble
  • Nonviral vectors
  • Sonoporation
  • Ultrasound contrast

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