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Mitochondrial Pyruvate Carrier 1 (MPC1) promotes peripheral T cell quiescence through metabolic regulation of thymic development

ABSTRACT: Mitochondrial Pyruvate Carrier 1 (MPC1) promotes peripheral T cell quiescence through metabolic regulation of thymic development

PROVIDER: PRJNA576898 | ENA |

REPOSITORIES: ENA

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Mitochondrial Pyruvate Carrier 1 (MPC1) promotes peripheral T cell quiescence through metabolic regulation of thymic development

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Mitochondrial pyruvate metabolism regulates the activation of quiescent adult neural stem cells

Project description:Cellular metabolism is important for adult neural stem/progenitor cell (NSPC) behavior. However, its role in the transition from quiescence to proliferation is not fully understood. We here show that the mitochondrial pyruvate carrier (MPC) plays a crucial and unexpected part in this process. MPC transports pyruvate into mitochondria, linking cytosolic glycolysis to mitochondrial tricarboxylic acid cycle and oxidative phosphorylation. Despite its metabolic key function, the role of MPC in NSPCs has not been addressed. We show that quiescent NSPCs have an active mitochondrial metabolism and express high levels of MPC. Pharmacological MPC inhibition increases aspartate and triggers NSPC activation. Furthermore, genetic Mpc1 ablation in vitro and in vivo also activates NSPCs, which differentiate into mature neurons, leading to overall increased hippocampal neurogenesis in adult and aged mice. These findings highlight the importance of metabolism for NSPC regulation and identify an important pathway through which mitochondrial pyruvate import controls NSPC quiescence and activation.

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Mitochondrial Pyruvate Carrier 1 (MPC1) enforces T cell homeostasis by enabling pyruvate oxidation in the mitochondria

Project description:Mitochondrial Pyruvate Carrier 1 (MPC1) enforces T cell homeostasis by enabling pyruvate oxidation in the mitochondria

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