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Cathepsin A Mediates Ventricular Remote Remodeling and Atrial Cardiomyopathy in Rats With Ventricular Ischemia/Reperfusion.


ABSTRACT: After myocardial infarction, remote ventricular remodeling and atrial cardiomyopathy progress despite successful revascularization. In a rat model of ventricular ischemia/reperfusion, pharmacological inhibition of the protease activity of cathepsin A initiated at the time point of reperfusion prevented extracellular matrix remodeling in the atrium and the ventricle remote from the infarcted area. This scenario was associated with preservation of more viable ventricular myocardium and the prevention of an arrhythmogenic and functional substrate for atrial fibrillation. Remote ventricular extracellular matrix remodeling and atrial cardiomyopathy may represent a promising target for pharmacological atrial fibrillation upstream therapy following myocardial infarction.

SUBMITTER: Hohl M 

PROVIDER: S-EPMC6609908 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Cathepsin A Mediates Ventricular Remote Remodeling and Atrial Cardiomyopathy in Rats With Ventricular Ischemia/Reperfusion.

Hohl Mathias M   Erb Katharina K   Lang Lisa L   Ruf Sven S   Hübschle Thomas T   Dhein Stefan S   Linz Wolfgang W   Elliott Adrian D AD   Sanders Prashanthan P   Zamyatkin Olesja O   Böhm Michael M   Schotten Ulrich U   Sadowski Thorsten T   Linz Dominik D  

JACC. Basic to translational science 20190624 3


After myocardial infarction, remote ventricular remodeling and atrial cardiomyopathy progress despite successful revascularization. In a rat model of ventricular ischemia/reperfusion, pharmacological inhibition of the protease activity of cathepsin A initiated at the time point of reperfusion prevented extracellular matrix remodeling in the atrium and the ventricle remote from the infarcted area. This scenario was associated with preservation of more viable ventricular myocardium and the prevent  ...[more]

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