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RESEARCH PRODUCT
Differential Regulatory Capacity of CD25+ T Regulatory Cells and Preactivated CD25+ T Regulatory Cells on Development, Functional Activation, and Proliferation of Th2 Cells
Tobias BoppMichael StassenChristoph RichterSteffen SchmittMatthias KleinHelmut JonuleitEdgar SchmittChristian W. Müllersubject
CD4-Positive T-LymphocytesImmunologySuccinimideschemical and pharmacologic phenomenaLymphocyte ActivationMiceInterleukin 21Th2 CellsT-Lymphocyte SubsetsAnimalsImmunology and AllergyCytotoxic T cellIL-2 receptorAntigen-presenting cellInterleukin 3Mice Inbred BALB CCD40biologyPeripheral toleranceForkhead Transcription FactorsReceptors Interleukin-2hemic and immune systemsFluoresceinsCell biologyDNA-Binding ProteinsMice Inbred C57BLbiology.proteinInterleukin 12Cytokinesdescription
Abstract CD25+ T regulatory (Treg) cells play a central role regarding the maintenance of peripheral tolerance via suppression of autoaggressive CD4+ T cells, CD8+ T cells, and Th1 cells. In this study we demonstrate that CD25+ Treg cells can also suppress the differentiation of murine conventional CD4+ T cells toward Th2 cells in a contact-dependent manner. However, the cytokine production and proliferation of established Th2 cells could not be inhibited by freshly isolated CD25+ Treg cells, whereas a strong inhibition of differentiated Th2 cells by in vitro preactivated CD25+ Treg cells could be observed. Inhibition of both conventional CD4+ T cells and Th2 cells is accompanied by a strong enhancement of the expression of FoxP3 in the suppressed T cells. Hence, our study indicates that CD25+ Treg cells have a therapeutic potential for Th2-mediated diseases and suggests a novel mechanism of suppression mediated by the transcriptional repressor FoxP3.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-07-01 | The Journal of Immunology |