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Publication : DR3 regulates negative selection during thymocyte development.

First Author  Wang EC Year  2001
Journal  Mol Cell Biol Volume  21
Issue  10 Pages  3451-61
PubMed ID  11313471 Mgi Jnum  J:84536
Mgi Id  MGI:2668263 Doi  10.1128/MCB.21.10.3451-3461.2001
Citation  Wang EC, et al. (2001) DR3 regulates negative selection during thymocyte development. Mol Cell Biol 21(10):3451-61
abstractText  DR3 (Ws1, Apo3, LARD, TRAMP, TNFSFR12) is a member of the death domain-containing tumor necrosis factor receptor (TNFR) superfamily, members of which mediate a variety of developmental events including the regulation of cell proliferation, differentiation, and apoptosis. We have investigated the in vivo role(s) of DR3 by generating mice congenitally deficient in the expression of the DR3 gene. We show that negative selection and anti-CD3-induced apoptosis are significantly impaired in DR3-null mice. In contrast, both superantigen-induced negative selection and positive selection are normal. The pre-T-cell receptor-mediated checkpoint, which is dependent on TNFR signaling, is also unaffected in DR3-deficient mice. These data reveal a nonredundant in vivo role for this TNF receptor family member in the removal of self-reactive T cells in the thymus.
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