Title
Structural characterization of transfection nanosystems based on tricationic surfactants and short double stranded oligonucleotides
Author
Veronika Andrzejewska, Michalina Wilkowska, Barbara Peplińska, Andrzej Skrzypczak, Maciej Kozak
Year
2019
Journal
Biochemical and Biophysical Research Communications
Abstract
For several years cationic surfactants have been the subjects of extensive studies as potential transgene carriers to be used in gene therapy. We report the formation of stable complexes between 21 base pairs oligonucleotides – siRNA, enhancing DMPK gene, and dsDNA and two tricationic surfactants (1,2,3-propanetri[oxymethyl-3-(1-dodecylimidazolium)]chloride and 1,2,3-propanetri[(oxymethyl)dimethyldodecylammonium]chloride. Structural studies by SAXS and TEM have shown that the dominant structure of the obtained lipoplexes is based on hexagonal, lamellar and cubic phases, packed in highly ordered aggregates. It has been established that tricationic surfactants can be used as siRNA carriers in gene therapy.
Instrument
J-815
Keywords
Circular dichroism, RNA structure, DNA structure, Secondary structure, Chemical stability, Biochemistry