First Author | Wang Y | Year | 2006 |
Journal | Nat Immunol | Volume | 7 |
Issue | 2 | Pages | 139-47 |
PubMed ID | 16378096 | Mgi Jnum | J:112607 |
Mgi Id | MGI:3662828 | Doi | 10.1038/ni1294 |
Citation | Wang Y, et al. (2006) Association of beta-arrestin and TRAF6 negatively regulates Toll-like receptor-interleukin 1 receptor signaling. Nat Immunol 7(2):139-47 |
abstractText | Tumor necrosis factor receptor-associated factor 6 (TRAF6) is critical for mediating Toll-like receptor (TLR)-interleukin 1 receptor (IL-1R) signaling and subsequent activation of NF-kappaB and AP-1, transcriptional activators of innate immunity. Here we show that beta-arrestins, a family of multifunctional proteins, directly interacted with TRAF6 after TLR-IL-1R activation. Formation of the beta-arrestin-TRAF6 complex prevented autoubiquitination of TRAF6 and activation of NF-kappaB and AP-1. Endotoxin-treated beta-arrestin 2-deficient mice had higher expression of proinflammatory cytokines and were more susceptible to endotoxic shock. Thus, beta-arrestins are essential negative regulators of innate immune activation via TLR-IL-1R signaling. |