Quantificação atrial de células mononucleares de medula óssea (CMMO) infundidas via intrapericárdica em suínos submetidos a infarto agudo do miocárdio

Abstract

n the last decades, the regenerative medicine have been applied and investigated worldwide due to the stem cell therapy, which has shown high capacity of differentiation into a diverse cell lineage, restoring damaged tissues. In this study we applied bone marrow, which contains adult stem cells, hematopoietic and mesenchimal lineages. Mesenchimal lineage belongs to the mononuclear cell group that among its function, have demonstrated capacity for cardiac remodeling after ischemic processes and, can be introduced into the heart by infusion techniques like intrapericardic technique which has been investigated lately. In this study we investigated the application of intrapericardic technique for mononuclear cell infusion in swine induced to myocardial infarction. We used 6 female swine, averaging 25 kg distributed into control group (3 animals) and experimental group (3 animals), which animal were induced to infarction and received mononuclear cell infusion by intrapericardic technique. Control group received only mononuclear cell infusion by the same technique in normal heart. Mononuclear cells were obtained by Ficoll density and were stained by Hoescht fluorocrome. Atria analysis in both groups revealed a homogeneous distribution of the infusioned cells in the atria with no significant difference, p>0.01 between control and experimental group.