Université de Fribourg

Cellular immunostimulation by CpG-sequence-coated DNA origami structures

Schüller, Verena J. ; Heidegger, Simon ; Sandholzer, Nadja ; Nickels, Philipp C. ; Suhartha, Nina A. ; Endres, Stefan ; Bourquin, Carole ; Liedl, Tim

In: ACS Nano, 2011, vol. 5, no. 12, p. 9696–9702

To investigate the potential of DNA origami constructs as programmable and noncytotoxic immunostimulants, we tested the immune responses induced by hollow 30-helix DNA origami tubes covered with up to 62 cytosine-phosphate-guanine (CpG) sequences in freshly isolated spleen cells. Unmethylated CpG sequences that are highly specific for bacterial DNA are recognized by a specialized receptor of the...