Positive effect of Periostin on repair of Isopreternol induced ischemic damaged cardiomyocyte: an in vitro model.

Abstract

IntroductionOne of the diseases in developed counties is myocardial infarction that causes the death of many people. A Problem of many new drugs usage concerns their assessment for applying therapeutically for heart disease. Previous studies used animal models but today many researchers tend to apply cellular models for feasibility of cellular model production and application.MethodsFor this purpose, we differentiated human bone marrow mesenchymal stem cells (hBM-MDCs) into cardiomyocyte, then induced damage into cells by Isoproterenol, and finally we assayed repair of cardiomyocyte by Periostin. Damage induction and repair were confirmed by measurement of selected markers for cardiac damage and repair at mRNA level. In addition, we measured LDH activity in culture medium during damage and repair processes.ResultsOur results showed LDHa and b mRNA levels increased and also cardiac markers decreased during damage of cardiomyocytes significantly. Reciprocally LDH isozymes decreased and cardiac markers increased during repair of cardiomyocytes.Discussion/conclusionThese alterations in cardiac markers after Periostin treatment demonstrate that Periostin is an effective factor on repair of cardiomyocytes. LDH activity in culture medium decreases after damage induction and increases during repair process. According to our data, Isoproterenol and Periostin are good inducer to produce damaged and repaired differentiated cardiomyocytes respectively.