title: Enhancement by histamine of vascular endothelial growth factor production in granulation tissue via H(2) receptors.
abstract: 1. Roles of histamine in the production of vascular endothelial growth factor (VEGF) in the carrageenin-induced granulation tissue in rats were analysed in vitro and in vivo. 2. Incubation of the minced granulation tissue in the presence of histamine (1 and 10 microM) increased the content of VEGF protein in the conditioned medium in a time- and concentration-dependent manner. The levels of VEGF mRNA in the minced granulation tissue were also increased by histamine in a concentration-dependent manner. 3. The increase in the content of VEGF protein in the conditioned medium by histamine (10 microM) was suppressed by the H(2) receptor antagonist cimetidine (IC(50) 0.37 microM), but not by the H(1) receptor antagonist pyrilamine maleate, the H(3) receptor antagonist thioperamide or the cyclo-oxygenase inhibitor indomethacin. 4. The histamine-induced increase in the content of VEGF protein in the conditioned medium was inhibited by the cyclic AMP antagonist Rp-cAMP (IC(50) 6.8 microM), and the protein kinase A inhibitor H-89 (IC(50) 12.5 microM), but not by the protein kinase C inhibitors Ro 31-8425 and calphostin C or the tyrosine kinase inhibitor genistein. 5. Simultaneous injection of cimetidine (400 microg) and indomethacin (100 microg) into the air pouch of rats additively reduced the carrageenin-induced increase in VEGF protein levels and angiogenesis in the granulation tissue as assessed by using carmine dye. 6. These findings indicate that histamine has an activity to induce VEGF production in the granulation tissue via the H(2) receptor-cyclic AMP-protein kinase A pathway and augments angiogenesis in the granulation tissue.
authors.affiliation: Laboratory of Pathophysiological Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan.
authors.forename: A K
authors.initials: AK
authors.lastname: Ghosh
authors.forename: N
authors.initials: N
authors.lastname: Hirasawa
authors.forename: K
authors.initials: K
authors.lastname: Ohuchi
mesh_terms: D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000494:pharmacology; D002351:Carrageenan / Q000008:administration & dosage; D002478:Cells, Cultured; D002927:Cimetidine / Q000494:pharmacology; D017868:Cyclic AMP-Dependent Protein Kinases / Q000037:antagonists & inhibitors / Q000378:metabolism; D004305:Dose-Response Relationship, Drug; D016228:Endothelial Growth Factors / Q000096:biosynthesis / Q000235:genetics; D004791:Enzyme Inhibitors / Q000494:pharmacology; D005347:Fibroblasts / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D005786:Gene Expression Regulation / Q000187:drug effects; D006097:Granulation Tissue / Q000187:drug effects* / Q000378:metabolism; D006632:Histamine / Q000494:pharmacology*; D006633:Histamine Antagonists / Q000494:pharmacology; D007150:Immunohistochemistry; D007211:Indoles / Q000494:pharmacology; D007213:Indomethacin / Q000494:pharmacology; D007249:Inflammation / Q000139:chemically induced / Q000378:metabolism; D007546:Isoquinolines / Q000494:pharmacology; D008222:Lymphokines / Q000096:biosynthesis / Q000187:drug effects* / Q000235:genetics; D017737:Macrophages, Peritoneal / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D008297:Male; D008301:Maleimides / Q000494:pharmacology; D009281:Naphthalenes / Q000494:pharmacology; D009389:Neovascularization, Pathologic / Q000139:chemically induced / Q000378:metabolism; D010880:Piperidines / Q000494:pharmacology; D011493:Protein Kinase C / Q000037:antagonists & inhibitors / Q000378:metabolism; D011738:Pyrilamine / Q000494:pharmacology; D012333:RNA, Messenger / Q000187:drug effects / Q000235:genetics / Q000378:metabolism; D051381:Rats; D017207:Rats, Sprague-Dawley; D011970:Receptors, Histamine H2 / Q000187:drug effects / Q000502:physiology*; D013047:Specific Pathogen-Free Organisms; D013449:Sulfonamides; D042461:Vascular Endothelial Growth Factor A; D042442:Vascular Endothelial Growth Factors
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D016228:Endothelial Growth Factors; D004791:Enzyme Inhibitors; D006633:Histamine Antagonists; D007211:Indoles; D007546:Isoquinolines; D008222:Lymphokines; D008301:Maleimides; D009281:Naphthalenes; D010880:Piperidines; D012333:RNA, Messenger; D011970:Receptors, Histamine H2; D013449:Sulfonamides; D042461:Vascular Endothelial Growth Factor A; D042442:Vascular Endothelial Growth Factors; C071924:Ro 31-8425; D002927:Cimetidine; D006632:Histamine; D002351:Carrageenan; D017868:Cyclic AMP-Dependent Protein Kinases; D011493:Protein Kinase C; D011738:Pyrilamine; C058819:calphostin C; C052075:thioperamide; C063509:N-(2-(4-bromocinnamylamino)ethyl)-5-isoquinolinesulfonamide; D007213:Indomethacin