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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Mention, Jean-jacques Turchinovich, Gleb Lewis, Julia M. Barbee, Susannah D. Woodward, Martin J. Boyden, Lynn M. Hayday, Adrian C. Tigelaar, Robert Lifton, Richard P. |
| Description | Author Affiliation: Barbee SD ( London Research Institute, Cancer Research UK, London WC2A 3LY, United Kingdom.); |
| Abstract | ß T-cell repertoire selection is mediated by peptide-MHC complexes presented by thymic epithelial or myeloid cells, and by lipid-CD1 complexes expressed by thymocytes. γδ T-cell repertoire selection, by contrast, is largely unresolved. Mice mutant for Skint-1, a unique Ig superfamily gene, do not develop canonical Vγ5Vδ1(+) dendritic epidermal T cells. This study shows that transgenic Skint-1, across a broad range of expression levels, precisely and selectively determines the Vγ5Vδ1(+) dendritic epidermal T-cell compartment. Skint-1 is expressed by medullary thymic epithelial cells, and unlike lipid-CD1 complexes, must be expressed by stromal cells to function efficiently. Its unusual transmembrane-cytoplasmic regions severely limit cell surface expression, yet increasing this or, conversely, retaining Skint1 intracellularly markedly compromises function. Each Skint1 domain appears nonredundant, including a unique decamer specifying IgV-domain processing. This investigation of Skint-1 biology points to complex events underpinning the positive selection of an intraepithelial γδ repertoire. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 8 |
| Volume Number | 108 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2011-03-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Epidermis Immunology Immunoglobulins T-Lymphocytes Animals Dendritic Cells Cytology Epithelial Cells Gene Expression Genetics Mice Mice, Transgenic Receptors, Antigen, T-Cell, Alpha-beta T-Lymphocyte Subsets Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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