Abstract
Tissue-specific homing of effector and memory T cells to skin and small intestine requires the imprinting of specific combinations of adhesion molecules and chemokine receptors by dendritic cells in the draining lymph nodes. In this study, we demonstrate that CD8(+) T cells activated by Ag-pulsed bone marrow-derived dendritic cells were induced to express the small intestine homing receptors alpha(4)beta(7) integrin and chemokine receptor CCR9 in coculture with small intestinal epithelial cells. In contrast, in coculture with dermal fibroblasts the skin-homing receptor E-selectin ligand was induced. Interestingly, the imprinting of gut homing receptors on anti-CD3/anti-CD28 stimulated T cells was induced by soluble factors produced by small intestinal epithelial cells. Retinoic acid was identified as a crucial factor. These findings show that peripheral tissue cells directly produce homing receptor imprinting factors and suggest that dendritic cells can acquire their imprinting potential already in the peripheral tissue of origin.
Original language | English |
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Pages (from-to) | 3745-3749 |
Number of pages | 5 |
Journal | Journal of Immunology |
Volume | 181 |
Issue number | 6 |
DOIs | |
Publication status | Published - 15 Sept 2008 |
Keywords
- Animals
- Bone Marrow Cells/immunology
- Cell Line
- Cells, Cultured
- Coculture Techniques
- Dendritic Cells/immunology
- Genomic Imprinting/immunology
- Integrins/biosynthesis
- Intestinal Mucosa/cytology
- Lymphoid Tissue/cytology
- Mice
- Mice, Inbred C57BL
- Mice, Transgenic
- Organ Specificity/genetics
- Receptors, CCR/biosynthesis
- Receptors, Lymphocyte Homing/biosynthesis
- T-Lymphocyte Subsets/cytology