Ikzf1 association with Foxp3 for Foxp3-dependent gene repression in Treg cells: induction of autoimmunity and tumor immunity by disrupting the association
Abstract:The transcription factor Foxp3 specifically expressed in regulatory T (Treg) cells controls Treg function by repressing some genes and activating others. We have shown here that the transcription factor Ikzf1 associates with Foxp3 via its exon 5 (called IkE5) and that conditional deletion of IkE5 up-regulated the genes, including Ifng, normally repressed by Foxp3 upon TCR stimulation. IkE5-deletion in Treg cells indeed incurred IFN-γ overproduction, which destabilized Foxp3 expression and impaired suppressive … Show more
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