Abstract:
We employed DNA and 2'-fluoro RNA aptamers to assembly novel systems for colorimetric microplate detection of TNFa, interleukin-17A and Dickkopf-1 proteins as biomarkers associated with ankylosing spondylitis. For each protein, we chose an optimal sandwich pair made of plate-immobilized capture aptamer and biotinylated reporter aptamer recruiting streptavidin-peroxidase conjugate. A feasibility of these test systems was demonstrated in model protein solutions.