title: Kinetic and metabolic analysis of mouse embryonic stem cell expansion under serum-free conditions.
abstract: 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.
authors.affiliation: Institute for Biotechnology and Bioengineering (IBB), Centre for Biological and Chemical Engineering, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001, Lisbon, Portugal.
authors.forename: Tiago G
authors.initials: TG
authors.lastname: Fernandes
authors.forename: Ana M
authors.initials: AM
authors.lastname: Fernandes-Platzgummer
authors.forename: Cláudia Lobato
authors.initials: CL
authors.lastname: da Silva
authors.forename: Maria Margarida
authors.initials: MM
authors.lastname: Diogo
authors.forename: Joaquim M S
authors.initials: JM
authors.lastname: Cabral
mesh_terms: D000818:Animals; D018929:Cell Culture Techniques; D002460:Cell Line; D016895:Culture Media, Serum-Free; D053595:Embryonic Stem Cells / Q000166:cytology* / Q000378:metabolism*; D005434:Flow Cytometry; D018398:Homeodomain Proteins / Q000378:metabolism; D016256:Lewis X Antigen / Q000378:metabolism; D051379:Mice; D000071317:Nanog Homeobox Protein; D050814:Octamer Transcription Factor-3 / Q000378:metabolism
chemical_list: D016895:Culture Media, Serum-Free; D018398:Homeodomain Proteins; D016256:Lewis X Antigen; D000071317:Nanog Homeobox Protein; C475540:Nanog protein, mouse; D050814:Octamer Transcription Factor-3