Injection of basic fibroblast growth factor together with adipose-derived stem cell transplantation: improved cardiac remodeling and function in myocardial infarction.

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Recent findings suggest that cell and gene transplantation in the infarcted myocardium may improve heart function. The aim of the study was to investigate the mechanism involved in improving heart function following the co-injection of adipose-derived stem cells (ADSCs) and basic fibroblast growth factor (bFGF) in a rat model of myocardial infarction. In this study, ADSCs were isolated from subcutaneous adipose tissues. The ADSCs were induced to differentiate into adipocytes, osteoblasts and cardiac myocytes in vitro. bFGF was co-injected with the ADSCs into the left ventricular wall in a rat myocardial infarction model. The structural and functional outcomes resulting from this transplantation were determined through detailed histological analysis and echocardiography. The graft size was significantly larger in the bFGF + ADSC group than in the PBS + ADSC group and PBS + bFGF group 4 weeks after injection (p < 0.05). The ADSCs were able to differentiate into cardiomyocytes, endothelial cells and vascular smooth muscle cells in vivo. There was a significant improvement in arteriole density within the infarcted area in the bFGF + ADSC group compared with the PBS + ADSC group and the PBS + bFGF group 4 weeks after transplantation (p < 0.05). The results of Western blot analysis showed that all of the treatments significantly reduced MMP2 and MMP9 protein levels compared with the

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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