Suppression of vascular endothelium hyperpermeability by cell-permeating peptide inhibitors of myosin light chain kinase
Autor: | Mikhail V. Samsonov, A. S. Molokoedov, A. A. Az’muko, Asker Y. Khapchaev, Olga A. Kazakova, Maria Sidorova, Elena L. Vilitkevich, Zh. D. Bespalova, Vladimir P. Shirinsky |
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Rok vydání: | 2012 |
Předmět: | |
Zdroj: | Biophysics. 57:587-591 |
ISSN: | 1555-6654 0006-3509 |
DOI: | 10.1134/s0006350912050089 |
Popis: | Novel peptides originating from the peptide inhibitor of myosin light chain kinase (MLCK), L-PIK (Arg-Lys-Lys-Tyr-Lys-Tyr-Arg-Arg-Lys), have been studied for their ability to attenuate the thrombin-induced hyperpermeability of an endothelial cell monolayer in culture. Peptides [NαMeArg1]-Lys-Lys-Tyr-Lys-Tyr-Arg-(D)Arg8-Lys and H-Arg(NO2)Lys-Lys-Tyr-Lys-Tyr-Arg-Arg-Lys-NH2 (designated PIK2 and PIK4, respectively) appeared to be the most effective inhibitors of endothelial cell monolayer hyperpermeability, and surpassed other known peptide inhibitors of MLCK derived from original L-PIK. Our results validate PIK2 and PIK4 as the leading molecules for the development of novel drugs intended to counteract pathological hyperpermeability of vascular endothelium. |
Databáze: | OpenAIRE |
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