First Author | Stanic AK | Year | 2004 |
Journal | J Immunol | Volume | 172 |
Issue | 8 | Pages | 4667-71 |
PubMed ID | 15067039 | Mgi Jnum | J:89129 |
Mgi Id | MGI:3038545 | Doi | 10.4049/jimmunol.172.8.4667 |
Citation | Stanic AK, et al. (2004) Cutting edge: the ontogeny and function of Va14Ja18 natural T lymphocytes require signal processing by protein kinase C theta and NF-kappa B. J Immunol 172(8):4667-71 |
abstractText | The rapid and robust immunoregulatory cytokine response of Va14Ja18 natural T (iNKT) cells to glycolipid Ags determines their diverse functions. Unlike conventional T cells, iNKT lymphocyte ontogeny absolutely requires NF-kappa B signaling. However, the precise role of NF-kappa B in iNKT cell function and the identity of upstream signals that activate NF-kappa B in this T cell subset remain unknown. Using mice in which iNKT cell ontogeny has been rescued despite inhibition of NF-kappa B signaling, we demonstrate that iNKT cell function requires NF-kappa B in a lymphocyte-intrinsic manner. Furthermore, the ontogeny of functional iNKT cells requires signaling through protein kinase C theta, which is dispensable for conventional T lymphocyte development. The unique requirement of protein kinase C theta implies that signals emanating from the TCR activate NF-kappa B during iNKT cell development and function. Thus, we conclude that NF-kappa B signaling plays a crucial role at distinct levels of iNKT cell biology. |