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Eat, breathe, ROS: controlling stem cell fate through metabolism
Dieter A Kubli1, Mark A Sussman1
1a San Diego State University , Integrated Regenerative Research Institute , San Diego , CA , USA.
Introduction:
Research reveals cardiac regeneration exists at levels previously deemed unattainable. Clinical trials using stem cells demonstrate promising cardiomyogenic and regenerative potential but insufficient contractile recovery. Incomplete understanding of the biology of administered cells likely contributes to inconsistent patient outcomes. Metabolism is a core component of many well-characterized stem cell types, and metabolic changes fundamentally alter stem cell fate from self-renewal to lineage commitment, and vice versa. However, the metabolism of stem cells currently studied for cardiac regeneration remains incompletely understood. Areas covered: Key metabolic features of stem cells are reviewed and unique stem cell metabolic characteristics are discussed. Metabolic changes altering stem cell fate are considered from quiescence and self-renewal to lineage commitment. Key metabolic concepts are applied toward examining cardiac regeneration through stem cell-based approaches, and clinical implications of current cell therapies are evaluated to identify potential areas of improvement. Expert commentary: The metabolism and biology of stem cells used for cardiac therapy remain poorly characterized. A growing appreciation for the fundamental relationship between stem cell functionality and metabolic phenotype is developing. Future studies unraveling links between cardiac stem cell metabolism and regenerative potential may considerably improve treatment strategies and therapeutic outcomes.
Insights
Understanding stem cell metabolism is key to improving cardiac regeneration therapies. Tailoring metabolic interventions can enhance stem cell function and patient outcomes in cardiac repair.
Area of Science:
- Cardiovascular Research
- Stem Cell Biology
- Metabolic Science
Background:
- Cardiac regeneration research shows potential but faces challenges with insufficient contractile recovery in clinical trials.
- Incomplete understanding of stem cell biology, particularly metabolism, contributes to variable patient outcomes in cardiac regeneration therapies.
- Metabolism critically influences stem cell fate, affecting self-renewal and lineage commitment, yet the metabolism of cardiac stem cells is poorly understood.
Purpose of the Study:
- To review key metabolic features of stem cells relevant to cardiac regeneration.
- To discuss unique metabolic characteristics of stem cells and their impact on cell fate.
- To evaluate the application of metabolic concepts to stem cell-based cardiac regeneration and assess clinical implications.
Main Methods:
- Literature review of stem cell metabolism.
- Analysis of metabolic changes influencing stem cell fate (quiescence, self-renewal, lineage commitment).
- Examination of stem cell-based cardiac regeneration approaches and current clinical therapies.
Main Results:
- Stem cell metabolism is fundamental to their function and fate.
- Metabolic phenotypes significantly impact stem cell potential for cardiac regeneration.
- Current stem cell therapies for cardiac repair have limitations due to poorly characterized cell metabolism.
Conclusions:
- The metabolism and biology of stem cells for cardiac therapy require further characterization.
- A strong link exists between stem cell metabolic phenotype and functionality.
- Future research into cardiac stem cell metabolism holds promise for improving therapeutic strategies and outcomes.