| First Author | Banerjee D | Year | 2005 |
| Journal | Immunity | Volume | 23 |
| Issue | 4 | Pages | 445-58 |
| PubMed ID | 16226509 | Mgi Jnum | J:113281 |
| Mgi Id | MGI:3665349 | Doi | 10.1016/j.immuni.2005.09.012 |
| Citation | Banerjee D, et al. (2005) c-Rel-dependent priming of naive T cells by inflammatory cytokines. Immunity 23(4):445-58 |
| abstractText | The intrinsic refractoriness of naive T cells for cytokine production is counteracted by cells of the innate immune system. Upon sensing danger via Toll-like receptors, these cells upregulate T cell costimulatory molecules and secrete cytokines that enhance T cell activation. We show that cytokine-mediated priming of naive T cells requires the NF-kappaB family member c-Rel. In resting naive cells c-Rel is associated primarily with IkappaBbeta, an inhibitory molecule that is not effectively degraded by TCR signals. Exposure of T cells to proinflammatory cytokines, TNF-alpha and IL-1beta, shifts c-Rel to IkappaBalpha-associated complexes that are readily targeted by the TCR. As a consequence, IL-2 and IFN-gamma mRNA are produced more quickly, and at higher levels, in cytokine-primed T cells. This mechanism does not operate in effector T cells where cytokine gene expression is c-Rel-independent. We propose that c-Rel plays a crucial role as a target of innate signals in T cells. |
