Inhibition of Nur77/Nurr1 leads to inefficient clonal deletion of self-reactive T cells.

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Inhibition of Nur77/Nurr1 leads to inefficient clonal deletion of self- reactive T cells

The Nur77/Nurr1 family of DNA binding proteins has been reported to be required for the signal transduction of CD3/T cell receptor (TCR)-mediated apoptosis in T cell hybridomas. To determine the role of this family of DNA-binding proteins in thymic clonal deletion, transgenic (Tg) mice bearing a dominant negative mutation were produced. The transgene consisted of a truncated Nur77 (deltaNur77) ...

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Tolerance without clonal expansion: self-antigen-expressing B cells program self-reactive T cells for future deletion.

B cells have been shown in various animal models to induce immunological tolerance leading to reduced immune responses and protection from autoimmunity. We show that interaction of B cells with naive T cells results in T cell triggering accompanied by the expression of negative costimulatory molecules such as PD-1, CTLA-4, B and T lymphocyte attenuator, and CD5. Following interaction with B cel...

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CD40 ligation in the presence of self-reactive CD8 T cells leads to severe immunopathology.

Previous work has shown that stimulation of APCs via CD40 strongly influences the outcome of a CD8 T cell response. In this study, we examined the effect of CD40 ligation on peripheral tolerance induction of self-reactive CD8 T cells in an adoptive transfer model. Naive CD8 T cells from TCR-transgenic (tg) mice specific for the gp33 epitope of lymphocytic choriomeningitis virus were tolerized w...

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Requirement of dendritic cells and B cells in the clonal deletion of Mls-reactive T cells in the thymus

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ژورنال

عنوان ژورنال: Journal of Experimental Medicine

سال: 1996

ISSN: 0022-1007,1540-9538

DOI: 10.1084/jem.183.4.1879