title: Inhibitory effect of di-catechol rooperol on VCAM-1 and iNOS expression in cytokine-stimulated endothelium.
abstract: Induced expression of vascular cell adhesion molecule-1 (VCAM-1) and of nitric oxide synthase (iNOS) is believed to play a role in the pathogenesis of atherosclerosis, asthma, as well as other inflammatory disorders. In the current study we examined the effect of the di-catechol rooperol [(E)-1,5-bis (3',4'-dihydroxyphenyl) pent-4-en-1-yne] on the process of microvascular endothelial cell (MME) activation by TNF-alpha and IFN-gamma. We show that rooperol decreases VCAM-1 and iNOS mRNA levels in cytokine-activated MME with subsequent inhibition of VCAM-1 membrane expression as measured by adhesion of P815 cells to MME monolayers, and NO production, as reflected in the nitrite concentration in culture medium. The properties of rooperol now described suggest that rooperol may be an anti-inflammatory agent useful in the treatment of several inflammatory disorders.
authors.affiliation: Institute of Molecular Biology, Jagiellonian University, Kraków, Poland. Joannab@mol.uj.edu.pl
authors.forename: J
authors.initials: J
authors.lastname: Bereta
authors.forename: M
authors.initials: M
authors.lastname: Bereta
authors.forename: A C
authors.initials: AC
authors.lastname: Allison
authors.forename: P B
authors.initials: PB
authors.lastname: Kruger
authors.forename: A
authors.initials: A
authors.lastname: Koj
mesh_terms: D000818:Animals; D015152:Blotting, Northern; D002396:Catechols / Q000494:pharmacology*; D002470:Cell Survival; D002478:Cells, Cultured; D016207:Cytokines / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004730:Endothelium, Vascular / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism; D015870:Gene Expression / Q000187:drug effects; D007371:Interferon-gamma / Q000494:pharmacology; D007770:L-Lactate Dehydrogenase / Q000378:metabolism; D016859:Lipoxygenase Inhibitors / Q000494:pharmacology*; D051379:Mice; D009569:Nitric Oxide / Q000096:biosynthesis; D019001:Nitric Oxide Synthase / Q000096:biosynthesis* / Q000235:genetics; D009573:Nitrites / Q000378:metabolism; D012333:RNA, Messenger / Q000032:analysis; D011994:Recombinant Proteins / Q000494:pharmacology; D014409:Tumor Necrosis Factor-alpha / Q000494:pharmacology; D019010:Vascular Cell Adhesion Molecule-1 / Q000096:biosynthesis* / Q000235:genetics
chemical_list: D002396:Catechols; D016207:Cytokines; D016859:Lipoxygenase Inhibitors; D009573:Nitrites; D012333:RNA, Messenger; D011994:Recombinant Proteins; D014409:Tumor Necrosis Factor-alpha; D019010:Vascular Cell Adhesion Molecule-1; D009569:Nitric Oxide; D007371:Interferon-gamma; C079659:rooperol; D007770:L-Lactate Dehydrogenase; D019001:Nitric Oxide Synthase