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Fall 2024
The stochastic diversification of the T cell receptor (TCR) carries with it both the potential for recognizing virtually infinite foreign peptides, but also the potential for the erroneous recognition of self-peptides, which represents a threat of autoimmunity. During development in the thymus, T...
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Contributions of Bim and Nur77 to multiple mechanisms of T cell tolerance following high affinity antigen encounter
DownloadSpring 2015
Prevention of autoimmune disease requires the elimination or inactivation of T cells that are highly reactive to self-peptides. During T cell development in the thymus, self-reactive thymocytes undergo negative selection upon receiving a high affinity T cell receptor (TCR) signal following...
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Examining the origin of peripheral self-reactive T cells and the contribution of Gadd45beta to T cell selection events in the HYcd4 TCR transgenic mouse model
DownloadSpring 2014
Kelly, Stephanie Alicia Wilhelmina
Thymic negative selection is important for preventing self-reactive T cells from entering the circulation. However, some self-reactive T cell clones can escape negative selection and induce autoimmunity. The molecular pathways that regulate negative selection are currently unclear, but PD-1 and...
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The role of programmed death-1 (PD-1) expression in the negative selection of T lymphocytes
DownloadSpring 2011
The immune system must be able to mount a response against pathogens and transformed cells while remaining tolerant to healthy host tissue. A key process for ensuring this self-tolerance is the negative selection of self-reactive thymocytes. Expression of Programmed Death-1 (PD-1), a...