Search results for " mitochondrial dynamics"

showing 3 items of 3 documents

MYC Induces a Hybrid Energetics Program Early in Cell Reprogramming

2018

Summary Cell reprogramming is thought to be associated with a full metabolic switch from an oxidative- to a glycolytic-based metabolism. However, neither the dynamics nor the factors controlling this metabolic switch are fully understood. By using cellular, biochemical, protein array, metabolomic, and respirometry analyses, we found that c-MYC establishes a robust bivalent energetics program early in cell reprogramming. Cells prone to undergo reprogramming exhibit high mitochondrial membrane potential and display a hybrid metabolism. We conclude that MYC proteins orchestrate a rewiring of somatic cell metabolism early in cell reprogramming, whereby somatic cells acquire the phenotypic plast…

0301 basic medicineCell signalingSomatic cellCèl·lulesCellOxidative phosphorylationcell reprogramming cell signaling metabolism mitochondrial dynamicsBiologyHybrid CellsBiochemistryMitochondrial DynamicsArticleOxidative PhosphorylationMitocondrisProto-Oncogene Proteins c-myc03 medical and health sciencesMetabolomicsCDC2 Protein KinaseGeneticsmedicinecell signalingAnimalsHumansGlycolysisPhosphorylationlcsh:QH301-705.5Membrane potentialMembrane Potential Mitochondriallcsh:R5-920cell reprogrammingCell BiologyCellular ReprogrammingCell biologyMitochondriaMice Inbred C57BL030104 developmental biologymedicine.anatomical_structurelcsh:Biology (General)lcsh:Medicine (General)ReprogrammingmetabolismGlycolysisDevelopmental Biology
researchProduct

Drp1 Controls Effective T Cell Immune-Surveillance by Regulating T Cell Migration, Proliferation, and cMyc-Dependent Metabolic Reprogramming

2018

Summary Mitochondria are key players in the regulation of T cell biology by dynamically responding to cell needs, but how these dynamics integrate in T cells is still poorly understood. We show here that the mitochondrial pro-fission protein Drp1 fosters migration and expansion of developing thymocytes both in vitro and in vivo. In addition, we find that Drp1 sustains in vitro clonal expansion and cMyc-dependent metabolic reprogramming upon activation, also regulating effector T cell numbers in vivo. Migration and extravasation defects are also exhibited in Drp1-deficient mature T cells, unveiling its crucial role in controlling both T cell recirculation in secondary lymphoid organs and acc…

Genetics and Molecular Biology (all)0301 basic medicinecell migrationT-LymphocytesCellCell CountMitochondrionLymphocyte ActivationBiochemistryCell MovementHomeostasismetabolic reprogrammingcell migration; cell proliferation; cMyc; Drp1; exhaustion; metabolic reprogramming; mitochondrial dynamics; T cells; thymocytes; tumor immune-surveillance; Biochemistry Genetics and Molecular Biology (all)lcsh:QH301-705.5cMycImmunologic SurveillanceMice KnockoutThymocytesEffectorDrp1; T cells; cMyc; cell migration; cell proliferation; exhaustion; metabolic reprogramming; mitochondrial dynamics; thymocytes; tumor immune-surveillanceCell migrationCell DifferentiationCell biologymedicine.anatomical_structurePhenotypeDynaminsendocrine systemSettore BIO/06Cell SurvivalLymphoid TissueMAP Kinase Signaling SystemT cellT cellsReceptors Antigen T-CellDrp1BiologyGeneral Biochemistry Genetics and Molecular BiologyArticleProto-Oncogene Proteins c-myc03 medical and health sciencestumor immune-surveillancemitochondrial dynamicexhaustionHomeostasimedicineAnimalsCell ProliferationTumor microenvironmentBiochemistry Genetics and Molecular Biology (all)Cell growthAnimalT cellthymocytemitochondrial dynamicsDynamin030104 developmental biologylcsh:Biology (General)T-LymphocyteT cell migration
researchProduct

Mitochondrial dynamics in type 2 diabetes: Pathophysiological implications

2017

Mitochondria play a key role in maintaining cellular metabolic homeostasis. These organelles have a high plasticity and are involved in dynamic processes such as mitochondrial fusion and fission, mitophagy and mitochondrial biogenesis. Type 2 diabetes is characterised by mitochondrial dysfunction, high production of reactive oxygen species (ROS) and low levels of ATP. Mitochondrial fusion is modulated by different proteins, including mitofusin-1 (MFN1), mitofusin-2 (MFN2) and optic atrophy (OPA-1), while fission is controlled by mitochondrial fission 1 (FIS1), dynamin-related protein 1 (DRP1) and mitochondrial fission factor (MFF). PARKIN and (PTEN)-induced putative kinase 1 (PINK1) partici…

MiD51 mitochondrial dynamics proteins of 51 kDaΔΨm mitochondrial membrane potential0301 basic medicineMitochondrial fission factorClinical BiochemistryMitochondrial DegradationMFN2Review ArticleTXNIP thioredoxin interacting proteinMitochondrial DynamicsBiochemistryAdenosine TriphosphateGRP78 78 kDa glucose-regulated proteinMFF mitochondrial fission factorMFN2 mitofusin 2TRX2 thioredoxin 2Redox biologylcsh:QH301-705.5NF-κB nuclear factor kappa Blcsh:R5-920MitophagyType 2 diabetesDRP1 dynamin-related protein 1FIS1 fission protein 1BNIP3 BCL2/adenovirus E1B 19 kDa interacting protein 3MitochondriaOPA1 optic atrophy 1SIRT1/3 sirtuin 1/3Biochemistrymitochondrial fusionTGF-β1 transforming growth factor-β1Mitochondrial fissionOMM outer mitochondrial membranelcsh:Medicine (General)MiD49 mitochondrial dynamics proteins of 49Nox 4 NADPH oxidase-4IMM inner mitochondrial membraneFIS1ATF6 activating transcription factor 6PINK1mTOR mammalian target of rapamycinCHOP C/EBP homologous proteinBiologymdivi-1 mitochondrial division inhibitor-1Mitochondrial Proteins03 medical and health sciencesROS reactive oxygen speciessXBP1 spliced X-box binding protein 1UCP-1 uncoupling protein-1MFN1 mitofusin 1SOD superoxide dismutaseLC3 1 A/1B-light chain 3HumansPINK1 (PTEN)-induced putative kinase 1S3 15-OxospiramilactoneOrganic ChemistrymtDNA mitochondrial DNAAMPK AMP-activated protein kinase030104 developmental biologyDiabetes Mellitus Type 2Mitochondrial biogenesislcsh:Biology (General)Oxidative stressp38 MAPK p38 mitogen-activated protein kinasep62/SQSTM1 ubiquitin and sequestosome-1Reactive Oxygen SpeciesRedox Biology
researchProduct