Antiedemic Effect of the Myosin Light Chain Kinase Inhibitor PIK7 in the Rat Model of Myocardial Ischemia Reperfusion Injury

Myocardial ischemia-reperfusion injury increases myocardial microvascular permeability, leading to enhanced microvascular filtration and interstitial fluid accumulation that is associated with greater microvascular obstruction and inadequate myocardial perfusion. A burst of reactive oxygen species a...

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Main Authors: Dmitry L. Sonin, Mikhail S. Medved, Asker Y. Khapchaev, Maria V. Sidorova, Marina E. Palkeeva, Olga A. Kazakova, Garry V. Papayan, Daniil A. Mochalov, Sarkis M. Minasyan, Ilya E. Anufriev, Daria V. Mukhametdinova, Natalia M. Paramonova, Ksenia M. Balabanova, Anastasia S. Lopatina, Ilia V. Aleksandrov, Natalya Yu. Semenova, Anna A. Kordyukova, Kirill V. Zaichenko, Vladimir P. Shirinsky, Michael M. Galagudza
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Current Issues in Molecular Biology
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Online Access:https://www.mdpi.com/1467-3045/47/1/33
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author Dmitry L. Sonin
Mikhail S. Medved
Asker Y. Khapchaev
Maria V. Sidorova
Marina E. Palkeeva
Olga A. Kazakova
Garry V. Papayan
Daniil A. Mochalov
Sarkis M. Minasyan
Ilya E. Anufriev
Daria V. Mukhametdinova
Natalia M. Paramonova
Ksenia M. Balabanova
Anastasia S. Lopatina
Ilia V. Aleksandrov
Natalya Yu. Semenova
Anna A. Kordyukova
Kirill V. Zaichenko
Vladimir P. Shirinsky
Michael M. Galagudza
author_facet Dmitry L. Sonin
Mikhail S. Medved
Asker Y. Khapchaev
Maria V. Sidorova
Marina E. Palkeeva
Olga A. Kazakova
Garry V. Papayan
Daniil A. Mochalov
Sarkis M. Minasyan
Ilya E. Anufriev
Daria V. Mukhametdinova
Natalia M. Paramonova
Ksenia M. Balabanova
Anastasia S. Lopatina
Ilia V. Aleksandrov
Natalya Yu. Semenova
Anna A. Kordyukova
Kirill V. Zaichenko
Vladimir P. Shirinsky
Michael M. Galagudza
author_sort Dmitry L. Sonin
collection DOAJ
description Myocardial ischemia-reperfusion injury increases myocardial microvascular permeability, leading to enhanced microvascular filtration and interstitial fluid accumulation that is associated with greater microvascular obstruction and inadequate myocardial perfusion. A burst of reactive oxygen species and inflammatory mediators during reperfusion causes myosin light chain kinase (MLCK)-dependent endothelial hyperpermeability, which is considered a preventable cause of reperfusion injury. In the present study, a single intravenous injection of MLCK peptide inhibitor PIK7 (2.5 mg/kg or 40 mg/kg) was found to suppress the vascular hyperpermeability caused by ischemia/reperfusion injury in an in vivo rat model. The antiedemic effect of PIK7 is transient and ceases within 90 min of reperfusion. The early no-reflow detected for the first time after 30 min ischemia in this model of myocardial infarction reduces the area accessible for PIK7. Electron microscopy has shown membrane-bound blebs of endotheliocytes, which partially or completely obturate the capillary lumen, and few capillaries with signs of intercellular gap formation in samples obtained from the center of the early no-reflow zone in control and PIK7-injected rats. Co-injection of PIK7 with NO donor sodium nitroprusside (SNP) increases blood flow in the zone of early no-reflow, while reducing the increased vascular permeability caused by SNP.
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spelling doaj-art-863122cc80aa41eb810514e22419366d2025-01-24T13:27:28ZengMDPI AGCurrent Issues in Molecular Biology1467-30371467-30452025-01-014713310.3390/cimb47010033Antiedemic Effect of the Myosin Light Chain Kinase Inhibitor PIK7 in the Rat Model of Myocardial Ischemia Reperfusion InjuryDmitry L. Sonin0Mikhail S. Medved1Asker Y. Khapchaev2Maria V. Sidorova3Marina E. Palkeeva4Olga A. Kazakova5Garry V. Papayan6Daniil A. Mochalov7Sarkis M. Minasyan8Ilya E. Anufriev9Daria V. Mukhametdinova10Natalia M. Paramonova11Ksenia M. Balabanova12Anastasia S. Lopatina13Ilia V. Aleksandrov14Natalya Yu. Semenova15Anna A. Kordyukova16Kirill V. Zaichenko17Vladimir P. Shirinsky18Michael M. Galagudza19Institute of Experimental Medicine, Almazov National Medical Research Centre, 15B Parkhomenko Street, 194021 Saint Petersburg, RussiaInstitute of Experimental Medicine, Almazov National Medical Research Centre, 15B Parkhomenko Street, 194021 Saint Petersburg, RussiaInstitute of Experimental Cardiology Named after Academician V.N. Smirnov, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov, 121552 Moscow, RussiaInstitute of Experimental Cardiology Named after Academician V.N. Smirnov, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov, 121552 Moscow, RussiaInstitute of Experimental Cardiology Named after Academician V.N. Smirnov, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov, 121552 Moscow, RussiaInstitute of Experimental Cardiology Named after Academician V.N. Smirnov, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov, 121552 Moscow, RussiaInstitute of Experimental Medicine, Almazov National Medical Research Centre, 15B Parkhomenko Street, 194021 Saint Petersburg, RussiaInstitute of Experimental Medicine, Almazov National Medical Research Centre, 15B Parkhomenko Street, 194021 Saint Petersburg, RussiaInstitute of Experimental Medicine, Almazov National Medical Research Centre, 15B Parkhomenko Street, 194021 Saint Petersburg, RussiaInstitute of Experimental Medicine, Almazov National Medical Research Centre, 15B Parkhomenko Street, 194021 Saint Petersburg, RussiaInstitute of Experimental Medicine, Almazov National Medical Research Centre, 15B Parkhomenko Street, 194021 Saint Petersburg, RussiaInstitute of Experimental Medicine, Almazov National Medical Research Centre, 15B Parkhomenko Street, 194021 Saint Petersburg, RussiaInstitute of Experimental Medicine, Almazov National Medical Research Centre, 15B Parkhomenko Street, 194021 Saint Petersburg, RussiaInstitute of Experimental Medicine, Almazov National Medical Research Centre, 15B Parkhomenko Street, 194021 Saint Petersburg, RussiaInstitute of Experimental Medicine, Almazov National Medical Research Centre, 15B Parkhomenko Street, 194021 Saint Petersburg, RussiaInstitute of Experimental Medicine, Almazov National Medical Research Centre, 15B Parkhomenko Street, 194021 Saint Petersburg, RussiaLaboratory of Radio- and Optoelectronic Devices for Early Diagnostics of Living Systems Pathologies, The Institute for Analytical Instrumentation, Russian Academy of Sciences, 31-33A Ivana Chernykh Street, 198095 Saint Petersburg, RussiaLaboratory of Radio- and Optoelectronic Devices for Early Diagnostics of Living Systems Pathologies, The Institute for Analytical Instrumentation, Russian Academy of Sciences, 31-33A Ivana Chernykh Street, 198095 Saint Petersburg, RussiaInstitute of Experimental Cardiology Named after Academician V.N. Smirnov, National Medical Research Centre of Cardiology Named after Academician E.I. Chazov, 121552 Moscow, RussiaInstitute of Experimental Medicine, Almazov National Medical Research Centre, 15B Parkhomenko Street, 194021 Saint Petersburg, RussiaMyocardial ischemia-reperfusion injury increases myocardial microvascular permeability, leading to enhanced microvascular filtration and interstitial fluid accumulation that is associated with greater microvascular obstruction and inadequate myocardial perfusion. A burst of reactive oxygen species and inflammatory mediators during reperfusion causes myosin light chain kinase (MLCK)-dependent endothelial hyperpermeability, which is considered a preventable cause of reperfusion injury. In the present study, a single intravenous injection of MLCK peptide inhibitor PIK7 (2.5 mg/kg or 40 mg/kg) was found to suppress the vascular hyperpermeability caused by ischemia/reperfusion injury in an in vivo rat model. The antiedemic effect of PIK7 is transient and ceases within 90 min of reperfusion. The early no-reflow detected for the first time after 30 min ischemia in this model of myocardial infarction reduces the area accessible for PIK7. Electron microscopy has shown membrane-bound blebs of endotheliocytes, which partially or completely obturate the capillary lumen, and few capillaries with signs of intercellular gap formation in samples obtained from the center of the early no-reflow zone in control and PIK7-injected rats. Co-injection of PIK7 with NO donor sodium nitroprusside (SNP) increases blood flow in the zone of early no-reflow, while reducing the increased vascular permeability caused by SNP.https://www.mdpi.com/1467-3045/47/1/33myosin light chain kinasepeptide inhibitor PIK7ischemic and reperfusion injurymyocardial infarctionno-reflowmicrovascular hyperpermeability
spellingShingle Dmitry L. Sonin
Mikhail S. Medved
Asker Y. Khapchaev
Maria V. Sidorova
Marina E. Palkeeva
Olga A. Kazakova
Garry V. Papayan
Daniil A. Mochalov
Sarkis M. Minasyan
Ilya E. Anufriev
Daria V. Mukhametdinova
Natalia M. Paramonova
Ksenia M. Balabanova
Anastasia S. Lopatina
Ilia V. Aleksandrov
Natalya Yu. Semenova
Anna A. Kordyukova
Kirill V. Zaichenko
Vladimir P. Shirinsky
Michael M. Galagudza
Antiedemic Effect of the Myosin Light Chain Kinase Inhibitor PIK7 in the Rat Model of Myocardial Ischemia Reperfusion Injury
Current Issues in Molecular Biology
myosin light chain kinase
peptide inhibitor PIK7
ischemic and reperfusion injury
myocardial infarction
no-reflow
microvascular hyperpermeability
title Antiedemic Effect of the Myosin Light Chain Kinase Inhibitor PIK7 in the Rat Model of Myocardial Ischemia Reperfusion Injury
title_full Antiedemic Effect of the Myosin Light Chain Kinase Inhibitor PIK7 in the Rat Model of Myocardial Ischemia Reperfusion Injury
title_fullStr Antiedemic Effect of the Myosin Light Chain Kinase Inhibitor PIK7 in the Rat Model of Myocardial Ischemia Reperfusion Injury
title_full_unstemmed Antiedemic Effect of the Myosin Light Chain Kinase Inhibitor PIK7 in the Rat Model of Myocardial Ischemia Reperfusion Injury
title_short Antiedemic Effect of the Myosin Light Chain Kinase Inhibitor PIK7 in the Rat Model of Myocardial Ischemia Reperfusion Injury
title_sort antiedemic effect of the myosin light chain kinase inhibitor pik7 in the rat model of myocardial ischemia reperfusion injury
topic myosin light chain kinase
peptide inhibitor PIK7
ischemic and reperfusion injury
myocardial infarction
no-reflow
microvascular hyperpermeability
url https://www.mdpi.com/1467-3045/47/1/33
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