Cutting Edge: The Pathogenicity of IFN-g–Producing Th17 Cells Is Independent of T-bet
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Cutting edge: the pathogenicity of IFN-γ-producing Th17 cells is independent of T-bet.
During the development of experimental autoimmune encephalomyelitis (EAE), the proportion of pathogenic and myelin-specific cells within CNS-infiltrating cytokine-producing Th cells is unknown. Using an IL-17A/IFN-γ double reporter mouse and I-A(b)/myelin oligodendrocyte glycoprotein 38-49 tetramer, we show in this study that IL-17(+)IFN-γ(+) Th cells, which are expanded in the CNS during EAE, ...
متن کاملGenome-wide regulatory analysis reveals that T-bet controls Th17 lineage differentiation through direct suppression of IRF4.
The complex relationship between Th1 and Th17 cells is incompletely understood. The transcription factor T-bet is best known as the master regulator of Th1 lineage commitment. However, attention is now focused on the repression of alternate T cell subsets mediated by T-bet, particularly the Th17 lineage. It has recently been suggested that pathogenic Th17 cells express T-bet and are dependent o...
متن کاملT-bet is essential for Th1-mediated, but not Th17-mediated, CNS autoimmune disease
T cells that produce both IL-17 and IFN-γ, and co-express ROR-γt and T-bet, are often found at sites of autoimmune inflammation. However, it is unknown whether this co-expression of T-bet with ROR-γt is a prerequisite for immunopathology. We show here that T-bet is not required for the development of Th17-driven experimental autoimmune encephalomyelitis (EAE). The disease was not impaired in T-...
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Recent reports have shown that IL-17-producing CD4+ T cells (Th17 cells) belong to a distinct helper T cell lineage and are critically involved in the pathogenesis of autoimmune diseases and allergies. However, the chemokine receptor profile of Th17 cells remains to be clarified. In this study, we report that human Th17 cells are identified as CCR2+CCR5- memory CD4+ T cells. Analysis of PBMC fr...
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The T-box transcription factor T-bet is an important regulator of IFN-gamma production in all cell types and is considered to be essential for the generation of CD4 Th1 T cells. IFN-gamma in turn plays a critical role in immunity to many infectious agents. In this study, we demonstrate that T-bet is not required for host resistance to primary Listeria monocytogenes (LM) infection. In the innate...
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تاریخ انتشار 2013