首页> 外文期刊>The Journal of Nuclear Medicine >In Vivo Dynamic Metabolic Changes After Transplantation of Induced Pluripotent Stem Cells for Ischemic Injury
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In Vivo Dynamic Metabolic Changes After Transplantation of Induced Pluripotent Stem Cells for Ischemic Injury

机译:诱导性多能干细胞移植治疗缺血性损伤后体内动态代谢变化

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摘要

This study aimed to investigate in vivo dynamic metabolic changes after transplantation of induced pluripotent stem cells (iPSCs) and iPSC-derived enriched cardiomyocytes (iPSC-CMs) in a rat model of ischemic injury. Methods: Serial F-18-FDG PET, echocardiographic, immunohistochemical, and immunofluorescence studies were performed after transplantation of iPSCs and iPSC-CMs and compared with embryonic stem cells (ESCs), ESC-CMs, and a phosphate buffered saline control group of rats with myocardial infarction. Results: Increased glucose metabolism in periinfarct areas and improved myocardial function were observed in the stem cell transplantation groups compared with the control group, and serial immunofluorescence and immunohistochemical results exhibited the survival and migration of stem cells during the study period. Conclusion: Serial F-18-FDG PET and echocardiographic imaging studies demonstrated the dynamic metabolic changes and recovery of myocardial function after stem cell transplantation. F-18-FDG PET could be a potential approach to evaluating spatiotemporal dynamic metabolic changes in vivo after transplantation of iPSCs or iPSC-CMs for ischemic injury.
机译:这项研究旨在调查诱导多能干细胞(iPSCs)和iPSC衍生的富集心肌细胞(iPSC-CMs)在大鼠缺血性损伤模型中的体内动态代谢变化。方法:在移植iPSC和iPSC-CM后,进行了系列F-18-FDG PET,超声心动图,免疫组化和免疫荧光研究,并与大鼠胚胎干细胞(ESC),ESC-CM和磷酸盐缓冲液对照组进行比较与心肌梗塞。结果:与对照组相比,干细胞移植组观察到梗塞区葡萄糖代谢增加,心肌功能改善,并且连续的免疫荧光和免疫组织化学结果显示了研究期间干细胞的存活和迁移。结论:系列F-18-FDG PET和超声心动图成像研究表明,干细胞移植后动态代谢变化和心肌功能恢复。 F-18-FDG PET可能是评估iPSC或iPSC-CM移植缺血性损伤后体内时空动态代谢变化的潜在方法。

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