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Updated: Aug 8, 2026

Stimulation of Cytoplasmic DNA Sensing Pathways In Vitro and In Vivo
Published on: September 18, 2014
Enhanced cellular binding of concatemeric oligonucleotide complexes
Olesya N Simonova1, Albina V Vladimirova, Marina A Zenkova
1Institute of Chemical Biology and Fundamental Medicine SB RAS. 8, Lavrentiev Ave., Novosibirsk 630090, Russia. olesya.simonova@niboch.nsc.ru
Abstract:
Interaction of oligonucleotides condensed into long concatemeric complexes with cancer cells was investigated. Pairs of 24- and 25-mer oligodeoxyribonucleotides were designed so that they could hybridize and form concatemeric structures. Pre-assembling of the oligonucleotides into concatemers considerably enhanced their ability to bind to human embryo kidney 293 cells and neuroblastoma IMR-32 cells as compared to free oligonucleotides. Efficiency of concatemers binding to the cells is improved with increase of the length and concentration of concatemeric complexes. The obtained results suggest incorporation of pharmacologically active oligonucleotides into concatemeric complexes as an approach to improvement of their cellular interaction.
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