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Both conventional T (Tconv) cells and regulatory T (Treg) cells are activated through ligation of the T cell receptor (TCR) complex, leading to the induction of the transcription factor NF-κB. In Tconv cells, NF-κB regulates expression of genes essential for T cell activation, proliferation, and function. However the role of NF-κB in Treg function remains unclear. We conditionally deleted canonical...
The NF-κB transcription factor regulates numerous immune responses but its contribution to interleukin-17 (IL-17) production by T cells is largely unknown. Here, we report that IL-17, but not interferon-γ (IFN-γ), production by γδ T cells required the NF-κB family members RelA and RelB as well as the lymphotoxin-β-receptor (LTβR). In contrast, LTβR-NF-κB signaling was not involved in the differentiation...
Inflammatory diseases at epithelial borders develop from aberrant interactions between resident cells of the tissue and invading immunocytes. Here, we unraveled basic functions of epithelial cells and immune cells and the sequence of their interactions in an inflammatory skin disease. Ubiquitous deficiency of the IκBα protein (Ikba Δ/Δ ) as well as concomitant deletion of Ikba specifically...
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