1. Cardiosphere-Derived Cells Demonstrate Metabolic Flexibility That Is Influenced by Adhesion Status
- Author
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Junaid Afzal, MBBS, MS, Angel Chan, MD PhD, Mehmet Fatih Karakas, MD, Kirubel Woldemichael, BS, Styliani Vakrou, MD, Yufan Guan, MD, Jeffrey Rathmell, PhD, Richard Wahl, MD, Martin Pomper, MD, PhD, D. Brian Foster, PhD, Miguel A. Aon, PhD, Benjamin Tsui, PhD, Brian O’Rourke, PhD, and M. Roselle Abraham, MD
- Subjects
cardiosphere-derived cells (CDCs) ,glycolysis ,metabolism ,oxidative phosphorylation (OxPhos) ,sodium-iodide symporter (NIS) ,SPECT imaging ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Adult stem cells demonstrate metabolic flexibility that is regulated by cell adhesion status. The authors demonstrate that adherent cells primarily utilize glycolysis, whereas suspended cells rely on oxidative phosphorylation for their ATP needs. Akt phosphorylation transduces adhesion-mediated regulation of energy metabolism, by regulating translocation of glucose transporters (GLUT1) to the cell membrane and thus, cellular glucose uptake and glycolysis. Cell dissociation, a pre-requisite for cell transplantation, leads to energetic stress, which is mediated by Akt dephosphorylation, downregulation of glucose uptake, and glycolysis. They designed hydrogels that promote rapid cell adhesion of encapsulated cells, Akt phosphorylation, restore glycolysis, and cellular ATP levels.
- Published
- 2017
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