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All rights reserved. http://resource.belframework.org/belframework/20131211/knowledge/large_corpus.bel http://purl.org/dc/elements/1.1/title BEL Framework Large Corpus Document http://resource.belframework.org/belframework/20131211/knowledge/large_corpus.bel http://purl.org/pav/authoredBy http://www.tkuhn.ch/bel2nanopub/RAfidWM3-vLKCROqOjHgBuOyigEoFRePdBleX1LhHY-JQ#_4 http://resource.belframework.org/belframework/20131211/knowledge/large_corpus.bel http://purl.org/pav/version 20131211 http://www.tkuhn.ch/bel2nanopub/RAfidWM3-vLKCROqOjHgBuOyigEoFRePdBleX1LhHY-JQ#_3 http://www.w3.org/ns/prov#value BACKGROUND: Histamine can induce coronary vasospasm, leading to variant angina and acute myocardial infarction. However, the role of histamine in thrombus formation is ill defined. Hence, this study investigates whether histamine induces tissue factor (TF) expression in vascular cells. METHODS AND RESULTS: Histamine (10(-8) to 10(-5) mol/L) induced TF expression in a concentration-dependent manner in human aortic endothelial and vascular smooth muscle cells, whereas TF pathway inhibitor expression remained unaffected. RT-PCR and Northern blotting revealed that histamine stimulated TF mRNA transcription, peaking at 1 hour. Protein expression increased 18-fold (P<0.02) with a maximum at 5 hours, which was paralleled by a 4-fold augmentation in surface activity (P<0.01). These effects were completely prevented by pretreatment with the H1 receptor antagonists mepyramine (P<0.0001), chlorpheniramine, and diphenhydramine but not the H2 receptor antagonist cimetidine (P=NS). Histamine induced a time-dependent, H1 receptor-mediated activation of p38 MAP kinase (p38), p44/42 MAP kinase (ERK), and c-jun terminal NH2 kinase (JNK). Blocking of p38, ERK, or JNK with SB203580 (P<0.0001), PD98059 (P<0.0001), or SP600125 (P<0.0001), respectively, impaired histamine-induced TF expression in a concentration-dependent manner. In contrast, histamine-stimulated TF expression was increased by phosphatidylinositol 3-kinase inhibition with LY294002 or wortmannin, whereas it was not affected by Rho-kinase inhibition with Y-27632 or hydroxyfasudil. CONCLUSIONS: Histamine induces expression of TF, but not TF pathway inhibitor, in vascular cells via activation of the H1, but not H2, receptor. This effect is mediated by the MAP kinases p38, ERK, and JNK. This observation may open novel perspectives in the treatment of variant angina and acute coronary syndromes. http://www.tkuhn.ch/bel2nanopub/RAfidWM3-vLKCROqOjHgBuOyigEoFRePdBleX1LhHY-JQ#_3 http://www.w3.org/ns/prov#wasQuotedFrom http://www.ncbi.nlm.nih.gov/pubmed/16009787 http://www.tkuhn.ch/bel2nanopub/RAfidWM3-vLKCROqOjHgBuOyigEoFRePdBleX1LhHY-JQ#_4 http://www.w3.org/2000/01/rdf-schema#label Selventa http://www.tkuhn.ch/bel2nanopub/RAfidWM3-vLKCROqOjHgBuOyigEoFRePdBleX1LhHY-JQ#assertion http://www.w3.org/ns/prov#hadPrimarySource http://www.ncbi.nlm.nih.gov/pubmed/16009787 http://www.tkuhn.ch/bel2nanopub/RAfidWM3-vLKCROqOjHgBuOyigEoFRePdBleX1LhHY-JQ#assertion http://www.w3.org/ns/prov#wasDerivedFrom http://resource.belframework.org/belframework/20131211/knowledge/large_corpus.bel http://www.tkuhn.ch/bel2nanopub/RAfidWM3-vLKCROqOjHgBuOyigEoFRePdBleX1LhHY-JQ#assertion http://www.w3.org/ns/prov#wasDerivedFrom http://www.tkuhn.ch/bel2nanopub/RAfidWM3-vLKCROqOjHgBuOyigEoFRePdBleX1LhHY-JQ#_3 http://www.tkuhn.ch/bel2nanopub/RAfidWM3-vLKCROqOjHgBuOyigEoFRePdBleX1LhHY-JQ#pubinfo http://www.tkuhn.ch/bel2nanopub/RAfidWM3-vLKCROqOjHgBuOyigEoFRePdBleX1LhHY-JQ http://purl.org/dc/terms/created 2014-07-03T14:32:47.446+02:00 http://www.tkuhn.ch/bel2nanopub/RAfidWM3-vLKCROqOjHgBuOyigEoFRePdBleX1LhHY-JQ http://purl.org/pav/createdBy http://orcid.org/0000-0001-6818-334X http://www.tkuhn.ch/bel2nanopub/RAfidWM3-vLKCROqOjHgBuOyigEoFRePdBleX1LhHY-JQ http://purl.org/pav/createdBy http://orcid.org/0000-0002-1267-0234