A1 Refereed original research article in a scientific journal
Chondroitin Sulfate-Coated Heteroduplex-Molecular Spherical Nucleic Acids
Authors: Laine, Toni; Deshpande, Prasannakumar; Tähtinen, Ville; Coffey, Eleanor T.; Virta, Pasi
Publisher: WILEY-V C H VERLAG GMBH
Publishing place: WEINHEIM
Publication year: 2024
Journal: ChemBioChem
Journal name in source: CHEMBIOCHEM
Journal acronym: CHEMBIOCHEM
Article number: e202400908
Number of pages: 10
ISSN: 1439-4227
eISSN: 1439-7633
DOI: https://doi.org/10.1002/cbic.202400908
Web address : https://doi.org/10.1002/cbic.202400908
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/477116248
Molecular Spherical Nucleic Acids (MSNAs) are atomically uniform dendritic nanostructures and potential delivery vehicles for oligonucleotides. The radial formulation combined with covalent conjugation may hide the oligonucleotide content and simultaneously enhance the role of appropriate conjugate groups on the outer sphere. The conjugate halo may be modulated to affect the delivery properties of the MSNAs. In the present study, [60]fullerene-based molecular spherical nucleic acids, consisting of a 2 '-deoxyribonucleotide and a ribonucleotide sequence, were used as hybridization-mediated carriers ("DNA and RNA-carriers") for an antisense oligonucleotide, suppressing Tau protein, (i. e. Tau-ASO) and its conjugates with chondroitin sulfate tetrasaccharides (CS) with different sulfation patterns. The impact of the MSNA carriers, CS-moieties on the conjugates and the CS-decorations on the MSNAs on cellular uptake and - activity (Tau-suppression) of the Tau-ASO was studied with hippocampal neurons in vitro. The formation and stability of these heteroduplex ASO-MSNAs were evaluated by UV melting profile analysis, polyacrylamide gel electrophoresis (PAGE), dynamic light scattering (DLS) and size exclusion chromatography equipped with a multi angle light scattering detector (SEC-MALS). The cellular uptake and - activity were studied by confocal microscopy and Western blot analysis, respectively.
Downloadable publication This is an electronic reprint of the original article. |  |
Funding information in the publication:
The research was supported by the Academy of Finland (decision number 308931) and Business Finland Ecosystem project (448/31/2018).
