Inventors:
Steven G. Widen - Galveston TX, US
Thomas G. Wood - Houston TX, US
Allan R. Brasier - Galveston TX, US
Yingxin Zhao - Houston TX, US
Assignee:
Board of Regents, The University of Texas System - Austin TX
International Classification:
A61K 31/7088, G01N 27/62, C12N 5/071, G01N 21/64, G01N 27/72, A61K 49/00, A61P 29/00, A61P 1/00, A61P 11/06, A61P 35/00, A61K 9/127, G01N 33/566, C07H 21/04, B82Y 15/00
US Classification:
424 91, 436501, 435375, 536 231, 514 44 A, 424450, 977774, 977773
Abstract:
DNA aptamers are high affinity ligands selected by genetic enrichment techniques to bind to specific protein targets. Because these represent chemically stable and reproducible molecules, they have application as affinity reagents and/or therapeutic drugs to affect the target protein's actions. NF-kB is an important mediator of the innate immune response and mediator of tissue inflammation. Although RNA and double stranded DNA aptamers have been identified to bind to the NF-kB family of proteins, the present invention represents the first identification of single stranded DNA aptamers that recognize NFkB RelA. The aptamers disclosed herein bind to several distinct regions of RelA and may be useful to antagonize the DNA binding of RelA as an inhibitor of cellular inflammation, visualize the location or amount of RelA in tissues from pathological conditions, or to quantitatively measure the activated state of RelA by affinity binding.