6533b82efe1ef96bd1293d1e
RESEARCH PRODUCT
Genetic proof for the transient nature of the Th17 phenotype
André P. HeinenAndrew L. CroxfordFlorian C. KurschusDaniele IeloAri WaismanSimone Wörtgesubject
Adoptive cell transferEncephalomyelitis Autoimmune ExperimentalGenes RAG-1TransgeneImmunologyReceptors Antigen T-CellMice TransgenicBiologyLymphocyte ActivationInterferon-gammaMiceInterleukin 21AntigenGenes ReporterT-Lymphocyte SubsetsIn vivomedicineAnimalsImmunology and AllergyCytotoxic T cellMesenteric lymph nodesMice KnockoutIntegrasesCell DifferentiationT helper cellTh1 CellsAdoptive TransferCell biologyMice Inbred C57BLmedicine.anatomical_structureGene Expression RegulationImmunologyTh17 Cellsdescription
IL-17-producing CD4(+) T cells (Th17) have been classified as a new T helper cell subset. Using an IL-17 fate mapping mouse strain, which genetically fixes the memory of IL-17 expression, we demonstrate that IL-17A/F-expressing T helper cells generated either in vitro or in vivo are not a stable T-cell subset. Upon adoptive transfer of IL-17F-reporter-positive Th17 cells to RAG-deficient or WT animals, encephalitogenic Th17 cells partially lose IL-17 expression and upregulate IFN-γ. Additionally, we show that Th1 cells can convert in vivo to IL-17A/IFN-γ-coexpressing cells in the mesenteric lymph nodes (mLN). Our data classify IL-17A and IL-17F as cytokines produced transiently in response to the local microenvironment, thus showing that IL-17 expression does not define an end-stage T helper cell subset.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-11-25 | European Journal of Immunology |