Archive des Bibliothèques universitaires de Nantes

Interferon gamma improves long-term efficacy of allogeneic mesenchymal stem cell therapy after acute myocardial infarction

Par : Teruin, Pierre

Document archivé le : 15/09/2016

Cardiac cell therapy using allogeneic mesenchymal stem cells (MSCs) loses efficacy on the long term, probably by immune rejection of the cells. Our working hypothesis is that pretreatment with IFN-γ of allogeneic MSCs improve cardiac cell therapy. In a rat model of allogeneic MSCs injection in post myocardial infarction, we compare the effect of autologous or allogeneic MSCs, pretreated or not with IFN-γ. Cardiac function was assessed by echocardiography, alloimmunization by blood tests and cardiac repair by histological study. Despite a humoral and cellular alloimmunization, allogeneic MSCs pretreated with IFN-γ improve cardiac repair and cardiac function in the long-term, similarly to autologous MSCs. Our study shows a beneficial effect of IFN-γ specific to the context of allogeneic cell therapy and suggests a favorable immune modulation induced by IFN-γ as the mechanism of the effect. 16NANT066M


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teruinMED16.pdf