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RESEARCH PRODUCT

A Stat6/Pten Axis Links Regulatory T Cells with Adipose Tissue Function

Françoise Rohner-jeanrenaudRalf PalmisanoMartin JastrochCarolin DanielAnette-gabriele ZieglerMaike BeckerMartin G. SchermMohammad M.h. MollahBenno WeigmannIsabelle SerrVictoria K. FlynnPhilipp TripalTobias BoppManuel SerranoStephen C. WoodsLucas F. NascimentoDaniel LampFabian HospMatthias H. TschöpSarah DietzenKatharina GerlachMatthias BlüherChristian WolfrumMark H. KaplanMatthias MannVanessa PoppVerena B. OttPurna KrishnamurthyStefanie KälinSusanne Keipert

subject

0301 basic medicinePTENProteomePhysiologyAdipose tissueStimulationmTORC1Diet induced thermogenesisBorcs6 ; C17orf59 ; Foxp3 ; Pten ; Stat6 ; T Cells ; Tregs ; Adipose Tissue Function ; Cold Exposure ; Metabolic Function ; Metabolism ; Regulatory T cellsT-Lymphocytes Regulatorychemistry.chemical_compound0302 clinical medicineAdipose Tissue BrownAdipocyteUncoupling Protein 1Tissue homeostasisSTAT6ddc:616Mice Inbred BALB CFOXP3Forkhead Transcription Factorshemic and immune systemsRegulatory T cellsCell biologyCold TemperatureFoxp3FemaleMetabolic functionmedicine.symptomSignal TransductionBorcs6Adipose Tissue WhiteCold exposureT cellsTregschemical and pharmacologic phenomenaInflammationBiologyArticle03 medical and health sciencesReceptors Adrenergic betaAdipose tissue functionmedicineAnimalsC17orf59Molecular BiologyPTEN PhosphohydrolaseCell BiologyMetabolism030104 developmental biologychemistryImmunologySTAT6 Transcription Factor030217 neurology & neurosurgery

description

Obesity and type 2 diabetes are associated with metabolic defects and adipose tissue inflammation. Foxp3(+) regulatory T cells (Tregs) control tissue homeostasis by counteracting local inflammation. However, if and how T cells interlink environmental influences with adipocyte function remains unknown. Here, we report that enhancing sympathetic tone by cold exposure, beta3-adrenergic receptor (ADRB3) stimulation or a short-term high-calorie diet enhances Treg induction in vitro and in vivo. CD4(+) T cell proteomes revealed higher expression of Foxp3 regulatory networks in response to cold or ADRB3 stimulation in vivo reflecting Treg induction. Specifically, Ragulator-interacting protein C17orf59, which limits mTORC1 activity, was upregulated in CD4(+) T cells by either ADRB3 stimulation or cold exposure, suggesting contribution to Treg induction. By loss- and gain-of-function studies, including Treg depletion and transfers in vivo, we demonstrated that a T cell-specific Stat6/Pten axis links cold exposure or ADRB3 stimulation with Foxp3(+) Treg induction and adipose tissue function. Our findings offer a new mechanistic model in which tissue-specific Tregs maintain adipose tissue function.

https://doi.org/10.1016/j.cmet.2017.08.008