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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Joyce, Sebastian Wilson, Michael T. Olivares-villagómez, Danyvid Johansson, Cecilia Wang, Chyung-ru Wick, Mary Jo Van Kaer, Luc Singh, Avneesh K. Stanic, Aleksandar K. |
| Description | Author Affiliation: Wilson MT ( Department of Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.); |
| Abstract | CD1d-restricted natural killer T (NKT) cells are a subset of regulatory T cells that react with glycolipid antigens. Although preclinical studies have effectively targeted NKT cells for immunotherapy, little is known regarding the early in vivo response of these cells to antigenic stimulation. We have analyzed the early response of NKT cells to glycolipid antigens and bacterial infection by using specific reagents for tracking these cells. Our results demonstrate dramatic in vivo expansion and surface phenotype alterations after NKT cell activation with alpha-galactosylceramide. In addition, we show significant NK1.1 down-modulation on NKT cells in the setting of oral Salmonella infection. Our results indicate that in vivo activation of NKT cells leads to a dynamic response characterized by surface receptor down-modulation and expansion. These findings alter current understanding of NKT cell biology and should aid in the rational design of NKT cell-based immunotherapies. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 19 |
| Volume Number | 100 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2003-09-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Down-Regulation Glycolipids Immunology Killer Cells, Natural Receptors, Antigen, T-Cell Animals Cells, Cultured Mice Mice, Inbred C57BL Polymerase Chain Reaction Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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