PMID- 16876162 OWN - NLM STAT- MEDLINE DCOM- 20060927 LR - 20091119 IS - 0014-5793 (Print) IS - 0014-5793 (Linking) VI - 580 IP - 19 DP - 2006 Aug 21 TI - TRUSS, a tumor necrosis factor receptor-1-interacting protein, activates c-Jun NH(2)-terminal kinase and transcription factor AP-1. PG - 4591-6 AB - Tumor necrosis factor-alpha (TNF-alpha) induces the transcriptional activation of numerous genes involved in the inflammatory response. The recently identified protein TRUSS was investigated for its role in TNF-alpha-induced activation of c-Jun-NH(2) terminal kinase (JNK) and transcription factor, AP-1. Ectopic expression of TRUSS activated JNK and AP-1 in the absence and presence of TNF-alpha stimulation. The C-terminal region of TRUSS interacted with TNF receptor-associated factor-2 (TRAF2) and co-expression of dominant-inhibitory TRAF2 with TRUSS inhibited AP-1 activation, suggesting that TRUSS signaling occurs upstream of TRAF2. Further, a dominant-inhibitory mutant of TRUSS inhibited TNF-alpha-induced AP-1 activation. These findings suggest that TRUSS activates JNK in a TRAF2-dependent fashion and is involved in TNF-alpha-induced AP-1 activation via JNK kinases. FAU - Soond, Surinder M AU - Soond SM AD - Program in Cell Biology, Department of Pediatrics, National Jewish Medical and Research Center, Denver, CO 80206, USA. FAU - Terry, Jennifer L AU - Terry JL FAU - Riches, David W H AU - Riches DW LA - eng GR - HL55549/HL/NHLBI NIH HHS/United States GR - HL68628/HL/NHLBI NIH HHS/United States GR - T32 HL07085-31/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20060713 PL - England TA - FEBS Lett JT - FEBS letters JID - 0155157 RN - 0 (TRUSS protein, mouse) RN - 0 (Trans-Activators) RN - 0 (Transcription Factor AP-1) RN - 0 (Tumor Necrosis Factor-alpha) RN - EC 2.7.11.24 (JNK Mitogen-Activated Protein Kinases) SB - IM MH - Animals MH - Cell Line MH - Electrophoretic Mobility Shift Assay MH - Enzyme Activation MH - Humans MH - JNK Mitogen-Activated Protein Kinases/*metabolism MH - Mice MH - Trans-Activators/metabolism/*physiology MH - Transcription Factor AP-1/*metabolism MH - Tumor Necrosis Factor-alpha/pharmacology EDAT- 2006/08/01 09:00 MHDA- 2006/09/28 09:00 CRDT- 2006/08/01 09:00 PHST- 2006/04/20 00:00 [received] PHST- 2006/06/01 00:00 [revised] PHST- 2006/06/30 00:00 [accepted] PHST- 2006/08/01 09:00 [pubmed] PHST- 2006/09/28 09:00 [medline] PHST- 2006/08/01 09:00 [entrez] AID - S0014-5793(06)00844-1 [pii] AID - 10.1016/j.febslet.2006.06.098 [doi] PST - ppublish SO - FEBS Lett. 2006 Aug 21;580(19):4591-6. doi: 10.1016/j.febslet.2006.06.098. Epub 2006 Jul 13.