Human mesenchymal progenitor cells, isolated from the subendothelium of umbilical veins, were tested for their potential to regenerate the myocardium after myocardial infarction in a nude rat infarction model. After induction of an anterior wall infarction and subsequent reperfusion, the cells were injected into the myocardium. 3 and 14 days after the infarction, the infarct healing was assessed by histology, immunohistochemistry and immunofluorescence. Furthermore, the intramyocardial expression of apoptotic, inflammatory, angiogenetic and cardioprotective genes was measured by RT-PCR. 14 days after the infarction the left ventricular ejection fraction was determined by MRT. No differences between the compared groups were detected in the conducted studies. In summary, transplantation of this type of mesenchymal progenitor cells does not have an influence on myocardial healing after infarction. The cells are therefore not suitable for the treatment of acute myocardial infarction.
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Human mesenchymal progenitor cells, isolated from the subendothelium of umbilical veins, were tested for their potential to regenerate the myocardium after myocardial infarction in a nude rat infarction model. After induction of an anterior wall infarction and subsequent reperfusion, the cells were injected into the myocardium. 3 and 14 days after the infarction, the infarct healing was assessed by histology, immunohistochemistry and immunofluorescence. Furthermore, the intramyocardial expressio...
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