A specific antidote for dabigatran: functional and structural characterization.

作者: Felix Schiele , Joanne van Ryn , Keith Canada , Corey Newsome , Eliud Sepulveda

DOI: 10.1182/BLOOD-2012-11-468207

关键词:

摘要: Dabigatran etexilate is a direct thrombin inhibitor and used widely as an anticoagulant for the prevention of stroke in patients with atrial fibrillation. However, anticoagulation therapy can be associated increased risk bleeding. Here, we present data on identification, humanization, vitro pharmacology antidote dabigatran (aDabi-Fab). The X-ray crystal structure complex reveals many structural similarities recognition compared thrombin. By tighter network interactions, achieves affinity that ~350 times stronger than its Despite mode binding, does not bind known substrates has no activity coagulation tests or platelet aggregation. In addition demonstrate rapidly reversed vivo rat model anticoagulation. This first report specific next-generation may become valuable tool who require emergency procedures.

参考文章(27)
Eric C. Peterson, Elizabeth M. Laurenzana, William T. Atchley, Howard P. Hendrickson, S. Michael Owens, Development and Preclinical Testing of a High-Affinity Single-Chain Antibody against (+)-Methamphetamine Journal of Pharmacology and Experimental Therapeutics. ,vol. 325, pp. 124- 133 ,(2008) , 10.1124/JPET.107.134395
Robert M. MacCallum, Andrew C.R. Martin, Janet M. Thornton, Antibody-antigen Interactions: Contact Analysis and Binding Site Topography Journal of Molecular Biology. ,vol. 262, pp. 732- 745 ,(1996) , 10.1006/JMBI.1996.0548
Effect of Clopidogrel Added to Aspirin in Patients with Atrial Fibrillation The New England Journal of Medicine. ,vol. 360, pp. 2066- 2078 ,(2009) , 10.1056/NEJMOA0901301
Joachim Stangier, Sebastian Haertter, Karl-Heinz Liesenfeld, Wolfgang Wienen, Martin Feuring, Andreas Clemens, Joanne van Ryn, Dabigatran etexilate - a novel, reversible, oral direct thrombin inhibitor: Interpretation of coagulation assays and reversal of anticoagulant activity Thrombosis and Haemostasis. ,vol. 103, pp. 1116- 1127 ,(2010) , 10.1160/TH09-11-0758
Stefan Blech, Thomas Ebner, Eva Ludwig-Schwellinger, Joachim Stangier, Willy Roth, The metabolism and disposition of the oral direct thrombin inhibitor, dabigatran, in humans. Drug Metabolism and Disposition. ,vol. 36, pp. 386- 399 ,(2008) , 10.1124/DMD.107.019083
Stuart J Connolly, Michael D Ezekowitz, Salim Yusuf, John Eikelboom, Jonas Oldgren, Amit Parekh, Janice Pogue, Paul A Reilly, Ellison Themeles, Jeanne Varrone, Susan Wang, Marco Alings, Denis Xavier, Jun Zhu, Rafael Diaz, Basil S Lewis, Harald Darius, Hans-Christoph Diener, Campbell D Joyner, Lars Wallentin, RE-LY Steering Committee and Investigators, None, Dabigatran versus Warfarin in Patients with Atrial Fibrillation New England Journal of Medicine. ,vol. 361, pp. 1139- 1151 ,(2009) , 10.1056/NEJMOA0905561
Wei Zhou, Sönke Schwarting, Sergio Illanes, Arthur Liesz, Moritz Middelhoff, Markus Zorn, Martin Bendszus, Sabine Heiland, Joanne van Ryn, Roland Veltkamp, Hemostatic Therapy in Experimental Intracerebral Hemorrhage Associated With the Direct Thrombin Inhibitor Dabigatran Stroke. ,vol. 42, pp. 3594- 3599 ,(2011) , 10.1161/STROKEAHA.111.624650
Norbert H. Hauel, Herbert Nar, Henning Priepke, Uwe Ries, Jean-Marie Stassen, Wolfgang Wienen, Structure-based design of novel potent nonpeptide thrombin inhibitors. Journal of Medicinal Chemistry. ,vol. 45, pp. 1757- 1766 ,(2002) , 10.1021/JM0109513
P R Pentel, S M Pond, D E Keyler, G J Brunn, Reversal of desipramine toxicity in rats using drug-specific antibody fab' fragment : effects on hypotension and interaction with sodium bicarbonate Journal of Pharmacology and Experimental Therapeutics. ,vol. 260, pp. 1392- 1399 ,(1992)
Frédéric J. Baud, Alain Sabouraud, Eric Vicaut, Pierre Taboulet, Jean Lang, Chantal Bismuth, Jean Marc Rouzioux, Jean-Michel Scherrmann, Brief report: treatment of severe colchicine overdose with colchicine-specific Fab fragments. The New England Journal of Medicine. ,vol. 332, pp. 642- 645 ,(1995) , 10.1056/NEJM199503093321004