Journal
BIOCHEMICAL ENGINEERING JOURNAL
Volume 84, Issue -, Pages 74-82Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.bej.2014.01.005
Keywords
Mesenchymal stem cells; Pluripotent stem cells; Metabolism; Process engineering; Bioreactor
Funding
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [1342192] Funding Source: National Science Foundation
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Mesenchymal stem cells (MSCs) and pluripotent stem cells (PSCs) emerge as promising tools for tissue engineering, cell therapy, and drug screening. Their potential use in clinical applications requires the efficient production of differentiated cells at large scale. Glucose, amino acid, and oxygen metabolism play a key role in MSC and PSC expansion and differentiation. This review summarizes recent advances in the understanding of stem cell metabolism for reprogramming, self-renewal, and lineage commitment. From the reported data, efficient expansion of stem cells has been found to rely on glycolysis, while during differentiation stem cells shift their metabolic pathway to oxidative phosphorylation. During reprogramming, the reverse metabolic shift from oxidative phosphorylation to glycolysis has been observed. As a consequence, the demands for glucose and oxygen vary upon different phases of stem cell production. Accurate understanding of stem cell metabolism is critical for the rational design of culture parameters such as oxygen tension and feeding regime in bioreactors towards efficient integrated reprogramming, expansion, and differentiation processes at large scale. (C) 2014 Elsevier B.V. All rights reserved.
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