Contractile Work Contributes to Maturation of Energy Metabolism in hiPSC-Derived Cardiomyocytes.
Stem Cell Reports
; 10(3): 834-847, 2018 03 13.
Article
en En
| MEDLINE
| ID: mdl-29503093
ABSTRACT
Energy metabolism is a key aspect of cardiomyocyte biology. Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) are a promising tool for biomedical application, but they are immature and have not undergone metabolic maturation related to early postnatal development. To assess whether cultivation of hiPSC-CMs in 3D engineered heart tissue format leads to maturation of energy metabolism, we analyzed the mitochondrial and metabolic state of 3D hiPSC-CMs and compared it with 2D culture. 3D hiPSC-CMs showed increased mitochondrial mass, DNA content, and protein abundance (proteome). While hiPSC-CMs exhibited the principal ability to use glucose, lactate, and fatty acids as energy substrates irrespective of culture format, hiPSC-CMs in 3D performed more oxidation of glucose, lactate, and fatty acid and less anaerobic glycolysis. The increase in mitochondrial mass and DNA in 3D was diminished by pharmacological reduction of contractile force. In conclusion, contractile work contributes to metabolic maturation of hiPSC-CMs.
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Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Miocitos Cardíacos
/
Metabolismo Energético
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Células Madre Pluripotentes Inducidas
Límite:
Humans
Idioma:
En
Revista:
Stem Cell Reports
Año:
2018
Tipo del documento:
Article