FIELD: chemistry; biochemistry.
SUBSTANCE: invention relates to biotechnology and medicine and specifically to direct thrombin inhibitors. The invention discloses a modified aptamer oligodeoxyribonucleotide of general formula d R-GTGACGTANGGTTGGTGTGGTTGGGGCGTCAC-R where d is deoxyribose (oligonucleotide contains deoxyribose in all positions), R denotes chemical substitutes. The substitute used is aminohexanol (NH2 group), which esterifies the phosphate group on the 5' or 3' end and PEG which is bonded on the 5' and/or 3' end. At least one of the substitutes bonded on the 5' or 3' end is polyethylene glycol (PEG). The disclosed modified DNA aptamer inhibits thrombin activity in human blood plasma by prolonging thrombin clotting time, prothrombin time and activated partial thromboplastin time and inhibits thrombin-stimulated aggregation of thrombocytes. During intravenous administration to an experimental animal, the modified DNA aptamer circulates in the blood longer than the basic aptamer RE31.
EFFECT: said DNA aptamer can serve as the base for antithrombotic medicinal agents.
6 dwg, 3 ex
Title | Year | Author | Number |
---|---|---|---|
APTAMER OLIGONUCLEOTIDE - DIRECT THROMBIN INHIBITOR | 2008 |
|
RU2401306C2 |
DNA-APTAMERS INTERACTING WITH PROTHROMBIN | 2018 |
|
RU2703799C1 |
METHOD OF INHIBITING THROMBUS FORMATION AND ACCELERATION OF FIBRINOLYSIS WITH DNA APTAMERS INHIBITING ACTIVITY OF THROMBIN IN EXPERIMENT | 2014 |
|
RU2559545C1 |
RNA-APTAMER WITH ABILITY TO LEARNRECOGNIZE AUTOANTIBODIES, CHARACTERISTIC FOR MULTIPLE SCLEROSIS | 2017 |
|
RU2644229C1 |
DOSAGE FORM OF DNA-APTAMER | 2019 |
|
RU2730000C1 |
ANTICOAGULANT WITH DIRECT ACTION BASED ON MODULAR BIVALENT DNA OF APTAMER SELECTIVE TO THROMBIN | 2016 |
|
RU2631829C1 |
COMBINATORIAL METHOD FOR OBTAINING DNA-APTAMER THROMBIN INHIBITORS AND APTAMER OLIGONUCLEOTIDES (VERSIONS) | 2013 |
|
RU2520094C1 |
THROMBIN INHIBITING DNA-APTAMERS AND METHOD OF STRUCTURE STABILISATION | 2009 |
|
RU2429293C1 |
DIMETHYL 7-METHYL-2-n-TOLYL-4-PHENYLPYRROLO[2,1-f] [2,1,4]TRIAZINE-5,6-DICARBOXYLATE WITH ANTICOAGULANT EFFECT | 2022 |
|
RU2790375C1 |
INTRODUCTION OF ANTI-COAGULATING SYSTEM REG1 | 2007 |
|
RU2568579C2 |
Authors
Dates
2011-01-27—Published
2009-11-23—Filed