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RESEARCH PRODUCT
Drp1 Controls Effective T Cell Immune-Surveillance by Regulating T Cell Migration, Proliferation, and cMyc-Dependent Metabolic Reprogramming
Matteo BordiValeria CancilaAlessandra ColamatteoSilvia CampelloMauro CorradoSilvia PiconeseClaudio EprocacciniIlenia PacellaLuca SimulaClaudio TripodoVincenzo BarnabaMartina PigazziClaudia TregnagoGiuseppe MatareseGiuseppe Mataresesubject
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 migrationdescription
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 accumulation at tumor sites. Moreover, the observed Drp1-dependent imbalance toward a memory-like phenotype favors T cell exhaustion in the tumor microenvironment. All of these findings support a crucial role for Drp1 in several processes during T cell development and in anti-tumor immune-surveillance.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-12-01 |