Luminescent Amphiphilic Aminoglycoside Probes to Study Transfection

Alexander Zimmermann, Qais Z. Jaber, Johannes Koch, Steffen Riebe, Cecilia Vallet, Kateryna Loza, Matthias Hayduk, Kfir B. Steinbuch, Shirley K. Knauer, Micha Fridman*, Jens Voskuhl*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We report the characterization of amphiphilic aminoglycoside conjugates containing luminophores with aggregation-induced emission properties as transfection reagents. These inherently luminescent transfection vectors are capable of binding plasmid DNA through electrostatic interactions; this binding results in an emission “on” signal due to restriction of intramolecular motion of the luminophore core. The luminescent cationic amphiphiles effectively transferred plasmid DNA into mammalian cells (HeLa, HEK 293T), as proven by expression of a red fluorescent protein marker. The morphologies of the aggregates were investigated by microscopy as well as ζ-potential and dynamic light-scattering measurements. The transfection efficiencies using luminescent cationic amphiphiles were similar to that of the gold-standard transfection reagent Lipofectamine® 2000.

Original languageEnglish
Pages (from-to)1563-1567
Number of pages5
JournalChemBioChem
Volume22
Issue number9
DOIs
StatePublished - 4 May 2021

Funding

FundersFunder number
CENIDE
Center for Nanointegration
Imaging Centre Campus Essen
Israel Science Foundation179/19
Council for Higher Education

    Keywords

    • aggregation-induced emission
    • bioimaging
    • cationic amphiphiles
    • self-assembly
    • transfection agents

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