First Author | Schaefer BC | Year | 2001 |
Journal | Cell Immunol | Volume | 214 |
Issue | 2 | Pages | 110-22 |
PubMed ID | 12088410 | Mgi Jnum | J:93490 |
Mgi Id | MGI:3057150 | Doi | 10.1006/cimm.2001.1895 |
Citation | Schaefer BC, et al. (2001) Observation of antigen-dependent CD8+ T-cell/ dendritic cell interactions in vivo. Cell Immunol 214(2):110-22 |
abstractText | In order to track hematopoetic cells of all lineages unambiguously at all stages of development, we have developed C57BL/6 mice that express a transgene coding for green fluorescent protein (GFP) under control of the human ubiquitin C promoter. These mice, called UBI-GFP/BL6, express GFP in all tissues examined, with high levels of GFP expression observed in hematopoetic cells. UBI-GFP/BL6 mice are unique in that B cells, T cells, and dendritic cells have distinct levels of GFP fluorescence. In cell transfer experiments, leukocytes from UBI-GFP/BL6 mice are readily identified by FACS or fluorescence microscopy. We demonstrate that transplanted UBI-GFP/BL6 dendritic cells are easily identified in secondary lymphoid tissues. Direct interactions between individual dendritic cells and multiple naive CD8+ T cells are observed in lymph nodes within 12 h of cell transfer and require loading of the dendritic cells with the appropriate peptide antigen. Dendritic cells undergo specific morphologic changes following interactions with antigen-specific T cells. |