Mitochondrial Assays Using Cardiac Stem Cells
Ischemic heart disease is the leading cause of death worldwide. Stem cell therapy to repair and regenerate the infarcted myocardium is a promising approach to address this unmet medical need. However, the poor survival of transplanted cells in the hostile ischemic myocardium has been a major hurdle in achieving an effective cell therapy against myocardial infarction. As such, novel strategies to promote the survival of transplanted cells are highly sought after. Mitochondria are intimately involved in cell survival and have been the main organelles being targeted for cytoprotection. Mitochondrial morphology is linked to mitochondrial function and cell viability. Therefore, quantitative methodologies to obtain reliable and reproducible results of mitochondrial morphology and function are essential for identifying and developing new cytoprotective strategies to enhance the survival of stem cells post-transplantation. Here, we describe methods for assessing mitochondrial morphology, mitochondrial membrane potential, and mitochondrial reactive oxygen species production.
Key wordsCardiac stem cells Mitochondria Mitochondrial morphology Mitochondrial membrane potential Reactive oxygen species Cell survival
This study was supported by the St Vincent’s Hospital (Melbourne) Research Endowment Fund, CASS foundation, and Stafford Fox Medical Research Foundation. The O’Brien Institute Department and St Vincent’s Institute of Medical Research receive Operational Infrastructure Support from the Victorian State Government of Innovation, Industry and Regional Development.