Analysis of molecular changes after autologous cell therapy in swine myocardial infarction tissue can reveal novel targets for future therapy

Journal of Tissue Engineering and Regenerative Medicine
Siri LehtonenPetri Lehenkari

Abstract

Although several studies have demonstrated a functional recovery of infarcted myocardial tissue after cell therapy, little is known about the molecular mechanisms behind it. The aim of this study was to characterize the effect of cell therapy at the molecular level to screen for novel target candidates for future therapy of infarcted myocardial tissue. We used a swine acute myocardial infarction model evoked by transient occlusion of the circumflex coronary artery. Autologous bone marrow-derived mononuclear cells (BMMCs) or saline were injected intramyocardially or into the circumflex coronary artery. Samples for protein and RNA analysis were collected from the infarction area and healthy myocardium after a 3 week recovery period and analysed by two-dimensional gel electrophoresis (2DE) and quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). Proteomic screening detected 13 protein spots which were altered after infarction but had been restored by BMMC treatment. The identification of seven proteins by mass spectrometry revealed that five proteins with decreased expression after infarction corresponded to mitochondrial proteins involved in energy metabolism. Their restored levels after BMMC treatment indicate...Continue Reading

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Citations

Sep 10, 2016·Expert Opinion on Biological Therapy·Bora Nadlacki, Erik J Suuronen

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