PMID- 14720501 OWN - NLM STAT- MEDLINE DCOM- 20040227 LR - 20211203 IS - 0014-4827 (Print) IS - 0014-4827 (Linking) VI - 292 IP - 1 DP - 2004 Jan 1 TI - Ebselen inhibits tumor necrosis factor-alpha-induced c-Jun N-terminal kinase activation and adhesion molecule expression in endothelial cells. PG - 1-10 AB - Tumor necrosis factor-alpha (TNF-alpha) stimulates expression of endothelial cell (EC) genes that may promote atherosclerosis in part by an activation of mitogen-activated protein (MAP) kinases. Ebselen (2-phenyl-1,2-benzisoselenazol-3[2H]-one), a selenoorganic compound, is effective for acute ischemic stroke; however, its effect on EC has not yet been elucidated. We examined the effect of ebselen on TNF-alpha-induced MAP kinase activation and adhesion molecule expression in cultured human umbilical vein endothelial cells (HUVEC). Extracellular signal-regulated kinase (ERK1/2), c-Jun N-terminal kinase (JNK) and p38 were rapidly and significantly activated by TNF-alpha in HUVEC. TNF-alpha-induced JNK activation was inhibited by ebselen, whereas ERK1/2 and p38 were not affected. Apoptosis signal-regulated kinase 1 (ASK1) was suggested to be involved in TNF-alpha-induced JNK activation because transfection of kinase-inactive ASK1 inhibited TNF-alpha-induced JNK activation. Ebselen inhibited TNF-alpha-induced TNF receptor-associated factor 2 (TRAF2)-ASK1 complex formation and phosphorylation of stress-activated protein kinase ERK kinase 1 (SEK1), which is an upstream signaling molecule of JNK. Finally, TNF-alpha-induced activator protein-1 (AP-1) and nuclear factor-kappaB (NF-kappaB) activation and resultant intracellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) expressions were inhibited by ebselen. Specific inhibitors for JNK and NF-kappaB also inhibited TNF-alpha-induced ICAM-1 and VCAM-1 expressions in HUVEC. These findings suggest that ebselen prevents TNF-alpha-induced EC activation through the inhibition of TRAF2-ASK1-SEK1 signaling pathway, which leads to JNK activation. Inhibition of JNK by ebselen may imply its usefulness for the prevention of atherosclerosis relevant to EC activation. FAU - Yoshizumi, Masanori AU - Yoshizumi M AD - Department of Pharmacology, The University of Tokushima School of Medicine, Tokushima 770-8503, Japan. yoshizu@basic.med.tokushima-u.ac.jp FAU - Fujita, Yoshiko AU - Fujita Y FAU - Izawa, Yuki AU - Izawa Y FAU - Suzaki, Yuki AU - Suzaki Y FAU - Kyaw, Moe AU - Kyaw M FAU - Ali, Nermin AU - Ali N FAU - Tsuchiya, Koichiro AU - Tsuchiya K FAU - Kagami, Shoji AU - Kagami S FAU - Yano, Seiji AU - Yano S FAU - Sone, Saburo AU - Sone S FAU - Tamaki, Toshiaki AU - Tamaki T LA - eng PT - Journal Article PL - United States TA - Exp Cell Res JT - Experimental cell research JID - 0373226 RN - 0 (Azoles) RN - 0 (Cell Adhesion Molecules) RN - 0 (Isoindoles) RN - 0 (NF-kappa B) RN - 0 (Organoselenium Compounds) RN - 0 (Transcription Factor AP-1) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (Vascular Cell Adhesion Molecule-1) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) RN - 40X2P7DPGH (ebselen) RN - EC 2.7.11.24 (JNK Mitogen-Activated Protein Kinases) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinases) RN - EC 2.7.12.2 (MAP Kinase Kinase 4) RN - EC 2.7.12.2 (MAP2K4 protein, human) RN - EC 2.7.12.2 (Mitogen-Activated Protein Kinase Kinases) SB - IM MH - Azoles/*pharmacology MH - Cell Adhesion Molecules/*metabolism MH - Cells, Cultured MH - Endothelium, Vascular/*drug effects/metabolism MH - Enzyme Activation MH - Humans MH - Intercellular Adhesion Molecule-1/metabolism MH - Isoindoles MH - JNK Mitogen-Activated Protein Kinases MH - *MAP Kinase Kinase 4 MH - Mitogen-Activated Protein Kinase Kinases/metabolism MH - Mitogen-Activated Protein Kinases/*biosynthesis MH - NF-kappa B/metabolism MH - Organoselenium Compounds/*pharmacology MH - Phosphorylation MH - Time Factors MH - Transcription Factor AP-1/metabolism MH - Tumor Necrosis Factor-alpha/*antagonists & inhibitors/metabolism MH - Umbilical Veins/cytology MH - Vascular Cell Adhesion Molecule-1/metabolism EDAT- 2004/01/15 05:00 MHDA- 2004/02/28 05:00 CRDT- 2004/01/15 05:00 PHST- 2004/01/15 05:00 [pubmed] PHST- 2004/02/28 05:00 [medline] PHST- 2004/01/15 05:00 [entrez] AID - S0014482703004439 [pii] AID - 10.1016/j.yexcr.2003.08.003 [doi] PST - ppublish SO - Exp Cell Res. 2004 Jan 1;292(1):1-10. doi: 10.1016/j.yexcr.2003.08.003.