Kinetic and metabolic analysis of mouse embryonic stem cell expansion under serum-free conditions
There is a need for a deeper understanding of the biochemical events affecting embryonic stem (ES) cell culture by analyzing the expansion of mouse ES cells in terms of both cell growth and metabolic kinetics. The influence of the initial cell density on cell expansion was assessed. Concomitantly, the biochemical profile of the culture was evaluated, which allowed measuring the consumption of important substrates, such as glucose and glutamine, and the production of metabolic byproducts, like lactate. The results suggest a more efficient cell metabolism in serum-free conditions and a preferential use of glutaminolysis as an energy source during cell expansion at low seeding densities. This work contributes to the development of fully-controlled bioprocesses to produce relevant numbers of ES cells for cell therapies and high-throughput drug screening.
KeywordsEmbryonic stem cells Expansion Metabolism Serum-free conditions Stem cells
- Mannello F, Tonti GA (2007) Concise Review: no breakthroughs for human mesenchymal and embryonic stem cell culture: conditioned medium, feeder layer, or feeder-free; medium with fetal calf serum, human serum, or enriched plasma; serum-free, serum replacement nonconditioned medium, or ad hoc formula? All that glitters is not gold! Stem Cells 25:1603–1609CrossRefPubMedGoogle Scholar
- Qiu C, Hanson E, Olivier E, Inada M, Kaufman DS, Gupta S, Bouhassira EE (2005) Differentiation of human embryonic stem cells into hematopoietic cells by coculture with human fetal liver cells recapitulates the globin switch that occurs early in development. Exp Hematol 33:1450–1458CrossRefPubMedGoogle Scholar