Mechanism of the stimulation of prostaglandin H synthase and prostacyclin synthase by the antithrombotic and antimetastatic agent, nafazatrom.

Abstract:

:Nafazatrom, an antithrombotic and antimetastatic agent containing a pyrazolone functionality, is a reducing substrate for the peroxidase activity of prostaglandin H (PGH) synthase. Nafazatrom inhibits the hydroperoxide-dependent oxidation of phenylbutazone, stimulates the reduction of 15-hydroperoxy-5,8,11,13-eicosatetraenoic acid, and is oxidized by microsomal or purified enzyme preparations from ram seminal vesicles. Consonant with the effects of other peroxidase-reducing substrates, nafazatrom stimulates the oxygenation of arachidonic acid to prostaglandin endoperoxides by the cyclooxygenase component of PGH synthase. In addition, nafazatrom causes an elevation in the levels of 6-keto-prostaglandin F1 alpha, the non-enzymatic hydrolysis product of prostacyclin (PGI2) biosynthesized from arachidonic acid by ram seminal vesicle microsomes. Elevation of PGI2 biosynthetic capacity by nafazatrom occurs under conditions in which prostaglandin endoperoxide biosynthesis is maximal, suggesting that nafazatrom has a stimulatory effect on the conversion of prostaglandin endoperoxides to PGI2. Nafazatrom has no effect on the ability of ram seminal vesicle microsomes to convert PGH2 to PGI2 but protects microsomal PGI2 synthase from inactivation by 15-hydroperoxy-5,8,11,13-eicosatetraenoic acid. Nafazatrom stimulates PGI2 biosynthesis in ram seminal vesicle microsomes by acting as a substrate for the peroxidase-catalyzed reduction of hydroperoxy fatty acids that are irreversible inactivators of PGI2 synthase. Several other compounds, including dipyridamole and triiodothyronine, exert similar effects. This may contribute to the reported ability of nafazatrom and related compounds to elevate the levels of bioassayable PGI2 in vivo and to the antithrombotic and antimetastatic activities of nafazatrom.

journal_name

Mol Pharmacol

journal_title

Molecular pharmacology

authors

Marnett LJ,Siedlik PH,Ochs RC,Pagels WR,Das M,Honn KV,Warnock RH,Tainer BE,Eling TE

subject

Has Abstract

pub_date

1984-09-01 00:00:00

pages

328-35

issue

2

eissn

0026-895X

issn

1521-0111

journal_volume

26

pub_type

杂志文章
  • Potent inhibition of aldehyde dehydrogenase-2 by diphenyleneiodonium: focus on nitroglycerin bioactivation.

    abstract::Aldehyde dehydrogenase-2 (ALDH2) catalyzes vascular bioactivation of the antianginal drug nitroglycerin (GTN) to yield nitric oxide (NO) or a related species that activates soluble guanylate cyclase (sGC), resulting in cGMP-mediated vasodilation. Accordingly, established ALDH2 inhibitors attenuate GTN-induced vasorela...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.113.086835

    authors: Neubauer R,Neubauer A,Wölkart G,Schwarzenegger C,Lang B,Schmidt K,Russwurm M,Koesling D,Gorren AC,Schrammel A,Mayer B

    更新日期:2013-09-01 00:00:00

  • Niemann-pick C1-like 1 mediates alpha-tocopherol transport.

    abstract::Dietary lipids and fat-soluble micronutrients are solubilized in mixed micelles and absorbed in the small intestine. Based on an assumption that cholesterol and other fat-soluble molecules share a number of transport mechanisms and the fact that Niemann-Pick C1-like 1 (NPC1L1) is critical for intestinal cholesterol ab...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.107.043034

    authors: Narushima K,Takada T,Yamanashi Y,Suzuki H

    更新日期:2008-07-01 00:00:00

  • Effect of halothane on synthesis and secretion of liver proteins.

    abstract::The effect of halothane on synthesis of retained and secreted proteins was investigated using isolated perfused rat livers. Anesthetic exposure rapidly inhibited synthesis of total liver proteins in a dose-dependent manner by a mechanism which appeared to involve reduced rates of both peptide chain initiation and elon...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:

    authors: Flaim KE,Jefferson LS,McGwire JB,Rannels DE

    更新日期:1983-09-01 00:00:00

  • Effects of beta-naphthoflavone on insulin receptor binding and protein kinase activity in rat liver and placenta.

    abstract::Studies investigating the effects of beta-naphthoflavone (beta NF) on insulin receptor binding and its intrinsic protein kinase activity in rat liver and placenta were performed. Membranes were prepared from maternal liver and placenta on gestation day 11 and used for [125I]insulin radioreceptor assay. Scatchard analy...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:

    authors: Wang SL,Raizada MK,Shiverick KT

    更新日期:1988-03-01 00:00:00

  • Targeted disruption of the multidrug and toxin extrusion 1 (mate1) gene in mice reduces renal secretion of metformin.

    abstract::Multidrug and toxin extrusion 1 (MATE1/SLC47A1) is important for excretion of organic cations in the kidney and liver, where it is located on the luminal side. Although its functional and regulatory characteristics have been clarified, its pharmacokinetic roles in vivo have yet to be elucidated. In the present study, ...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.109.056242

    authors: Tsuda M,Terada T,Mizuno T,Katsura T,Shimakura J,Inui K

    更新日期:2009-06-01 00:00:00

  • Nitric oxide levels in human preneoplastic colonocytes determine their susceptibility toward antineoplastic agents.

    abstract::The efficacy of antineoplastic compounds can depend heavily on the genetic background of the cells exposed to the drugs. This becomes evident by the fact that HT-29 human colon cancer cells but not primary murine nontransformed colonocytes are efficiently submitted to apoptosis by the flavonoid flavone. By determining...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.64.6.1494

    authors: Wenzel U,Kuntz S,Daniel H

    更新日期:2003-12-01 00:00:00

  • Low concentrations of vinflunine induce apoptosis in human SK-N-SH neuroblastoma cells through a postmitotic G1 arrest and a mitochondrial pathway.

    abstract::Vinflunine, the newest fluorinated Vinca alkaloid, currently in phase III clinical trials, targets the microtubule network to induce mitotic block and apoptosis by mechanisms that remain unclear. In the current study, we investigated the apoptotic pathways induced by a wide range of vinflunine concentrations in SK-N-S...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.66.3.

    authors: Pourroy B,Carré M,Honoré S,Bourgarel-Rey V,Kruczynski A,Briand C,Braguer D

    更新日期:2004-09-01 00:00:00

  • Single-channel pharmacology of mibefradil in human native T-type and recombinant Ca(v)3.2 calcium channels.

    abstract::To study the molecular pharmacology of low-voltage-activated calcium channels in biophysical detail, human medullary thyroid carcinoma (hMTC) cells were investigated using the single-channel technique. These cells had been reported to express T-type whole-cell currents and a Ca(v)3.2 (or alpha 1H) channel subunit. We ...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.61.3.682

    authors: Michels G,Matthes J,Handrock R,Kuchinke U,Groner F,Cribbs LL,Pereverzev A,Schneider T,Perez-Reyes E,Herzig S

    更新日期:2002-03-01 00:00:00

  • Cellular resistance to the antitumor DNA topoisomerase II inhibitor S16020-2: importance of the N-[2(Dimethylamino)ethyl]carbamoyl side chain.

    abstract::The new olivacine derivative S16020-2 (NSC-659687) is a DNA topoisomerase II inhibitor endowed with a remarkable antitumor activity against various experimental tumors. In vitro physicochemical properties of this compound, in particular its interaction with DNA and DNA topoisomerase II, were very similar to those of e...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.58.4.709

    authors: Le Mée S,Chaminade F,Delaporte C,Markovits J,Saucier JM,Jacquemin-Sablon A

    更新日期:2000-10-01 00:00:00

  • Desensitization of NO/cGMP signaling in smooth muscle: blood vessels versus airways.

    abstract::The NO/cGMP signaling pathway plays a major role in the cardiovascular system, in which it is involved in the regulation of smooth muscle tone and inhibition of platelet aggregation. Under pathophysiological conditions such as endothelial dysfunction, coronary artery disease, and airway hyperreactivity, smooth muscle ...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.105.020909

    authors: Mullershausen F,Lange A,Mergia E,Friebe A,Koesling D

    更新日期:2006-06-01 00:00:00

  • Involvement of nuclear factor kappaB in c-Myc induction by tubulin polymerization inhibitors.

    abstract::We showed previously that microtubule disassembly by vinblastine induces the proto-oncogene c-myc in epithelial mammary HBL100 cells. In this study, we demonstrate that vinblastine treatment in these cells, in contrast to what was observed with the colon adenocarcinoma cell line HT29-D4, activated the transcription fa...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.59.5.1165

    authors: Bourgarel-Rey V,Vallee S,Rimet O,Champion S,Braguer D,Desobry A,Briand C,Barra Y

    更新日期:2001-05-01 00:00:00

  • N-Terminal Targeting of Regulator of G Protein Signaling Protein 2 for F-Box Only Protein 44-Mediated Proteasomal Degradation.

    abstract::Regulator of G protein signaling (RGS) proteins are negative modulators of G protein signaling that have emerged as promising drug targets to improve specificity and reduce side effects of G protein-coupled receptor-related therapies. Several small molecule RGS protein inhibitors have been identified; however, enhanci...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/molpharm.120.000061

    authors: McNabb HJ,Gonzalez S,Muli CS,Sjögren B

    更新日期:2020-12-01 00:00:00

  • The tricyclic antidepressant amitriptyline inhibits D-cyclin transactivation and induces myeloma cell apoptosis by inhibiting histone deacetylases: in vitro and in silico evidence.

    abstract::Amitriptyline is a classic tricyclic antidepressant (TCA) and has been used to treat the depression and anxiety of patients with cancer, but its relevance to cancer cell apoptosis is not known. In the present study, we demonstrated that amitriptyline inhibited cyclin D2 transactivation and displayed potential antimyel...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.110.068122

    authors: Mao X,Hou T,Cao B,Wang W,Li Z,Chen S,Fei M,Hurren R,Gronda M,Wu D,Trudel S,Schimmer AD

    更新日期:2011-04-01 00:00:00

  • Two alpha1-adrenergic receptor subtypes regulating the vasopressor response have differential roles in blood pressure regulation.

    abstract::To study the functional role of individual alpha1-adrenergic (AR) subtypes in blood pressure (BP) regulation, we used mice lacking the alpha1B-AR and/or alpha1D-AR with the same genetic background and further studied their hemodynamic and vasoconstrictive responses. Both the alpha1D-AR knockout and alpha1B-/alpha1D-AR...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.104.007500

    authors: Hosoda C,Koshimizu TA,Tanoue A,Nasa Y,Oikawa R,Tomabechi T,Fukuda S,Shinoura H,Oshikawa S,Takeo S,Kitamura T,Cotecchia S,Tsujimoto G

    更新日期:2005-03-01 00:00:00

  • Apolipoprotein B mRNA editing and the reduction in synthesis and secretion of the atherogenic risk factor, apolipoprotein B100 can be effectively targeted through TAT-mediated protein transduction.

    abstract::Hepatic very-low-density lipoprotein particles (VLDL) containing full-length apolipoprotein B100 are metabolized in the blood stream to low-density lipoprotein (LDL) particles, whose elevated levels increase the risk of atherosclerosis. Statins and bile-acid sequestrants are effective LDL-lowering therapies for many p...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.61.2.269

    authors: Yang Y,Ballatori N,Smith HC

    更新日期:2002-02-01 00:00:00

  • Structural and functional characterization of the human alpha3 nicotinic subunit gene promoter.

    abstract::We describe the structural and functional features of the human alpha3 nicotinic receptor subunit promoter. A 0.35-kb region immediately upstream of the start codon was identified that when transfected in human neuroblastoma cells was able to drive the expression of the luciferase reporter gene with a strength compara...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.51.2.250

    authors: Fornasari D,Battaglioli E,Flora A,Terzano S,Clementi F

    更新日期:1997-02-01 00:00:00

  • Interaction of DNA-intercalating antitumor agents with adrenoceptors.

    abstract::The interaction between some examples of mononuclear and binuclear DNA-intercalating antitumor agents and alpha- and beta-adrenoceptors has been studied using radioligand-binding assays. Competition for 125I-BE 2254, [3H]rauwolscine, and (-)-[3H]dihydroalprenolol binding was used to assess affinity for alpha 1-, alpha...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:

    authors: Adams A,Jarrott B,Elmes BC,Denny WA,Wakelin LP

    更新日期:1985-04-01 00:00:00

  • Angiotensin II and canonical transient receptor potential-6 activation stimulate release of a signal transducer and activator of transcription 3-activating factor from mouse podocytes.

    abstract::Previous studies have shown that the transcription factor signal transducer and activator of transcription-3 (STAT3) in podocytes plays an important role in progression of HIV nephropathy and in collapsing forms of glomerulonephritis. Here, we have observed that application of 100 nM angiotensin II (Ang II) to culture...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章,收录出版

    doi:10.1124/mol.114.092536

    authors: Abkhezr M,Dryer SE

    更新日期:2014-08-01 00:00:00

  • Purification and characterization of the major hepatic cannabinoid hydroxylase in the mouse: a possible member of the cytochrome P-450IIC subfamily.

    abstract::Acute cannabidiol treatment of mice inactivated hepatic microsomal cytochrome P-450IIIA (P-450IIIA) and markedly inhibited in vitro cannabinoid metabolism. Antibodies raised against purified P-450IIIA inhibited the microsomal formation of quantitatively minor cannabinoid metabolites but had no effect on the major meta...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:

    authors: Bornheim LM,Correia MA

    更新日期:1991-08-01 00:00:00

  • Sequential oxidation and glutathione addition to 1,4-benzoquinone: correlation of toxicity with increased glutathione substitution.

    abstract::The chemical reaction of 1,4-benzoquinone with glutathione results in the formation of adducts that exhibit increasing degrees of glutathione substitution. Purification of these adducts and analysis by 1H and 13C nuclear magnetic resonance spectroscopy revealed the products of the reaction to be 2-(glutathion-S-yl)hyd...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:

    authors: Lau SS,Hill BA,Highet RJ,Monks TJ

    更新日期:1988-12-01 00:00:00

  • Glutamate uptake is inhibited by arachidonic acid and oxygen radicals via two distinct and additive mechanisms.

    abstract::Reuptake of glutamate in astrocytes, a critical mechanism involved in the maintenance of physiological excitatory amino acid neurotransmission, is inhibited by both arachidonic acid (AA) and reactive oxygen species (ROS), via incompletely defined molecular mechanisms. Because ROS are generated during AA metabolism and...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:

    authors: Volterra A,Trotti D,Racagni G

    更新日期:1994-11-01 00:00:00

  • Pivotal role for the cytoplasmic carboxyl-terminal tail of a nonmammalian gonadotropin-releasing hormone receptor in cell surface expression, ligand binding, and receptor phosphorylation and internalization.

    abstract::The gonadotropin-releasing hormone receptor (GnRH-R) of the African catfish couples to phospholipase C and belongs to the large family of G protein-coupled receptors. We recently demonstrated that removal of the carboxyl-terminal tail (S331-Q379) from the catfish GnRH-R results in a loss of agonist binding; the curren...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.56.6.1229

    authors: Blomenröhr M,Heding A,Sellar R,Leurs R,Bogerd J,Eidne KA,Willars GB

    更新日期:1999-12-01 00:00:00

  • Inhibition of branched-chain alpha-keto acid dehydrogenase kinase and Sln1 yeast histidine kinase by the antifungal antibiotic radicicol.

    abstract::The 90-kDa heat shock family (HSP90) of protein and two-component histidine kinases, although quite distinct at the primary amino acid sequence level, share a common structural ATP-binding domain known as the Bergerat fold. The Bergerat fold is important for the ATPase activity and associated chaperone function of HSP...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.62.2.289

    authors: Besant PG,Lasker MV,Bui CD,Turck CW

    更新日期:2002-08-01 00:00:00

  • Nuclear xenobiotic receptor pregnane X receptor locks corepressor silencing mediator for retinoid and thyroid hormone receptors (SMRT) onto the CYP24A1 promoter to attenuate vitamin D3 activation.

    abstract::We have studied the molecular mechanism by which the nuclear xenobiotic receptors pregnane X receptor (PXR) and constitutive active/androstane receptor (CAR) regulate transcription of the vitamin D(3) 24-hydroxylase (CYP24A1) gene. In the absence of vitamin D(3), PXR activates the CYP24A1 gene by directly binding to a...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.108.051904

    authors: Konno Y,Kodama S,Moore R,Kamiya N,Negishi M

    更新日期:2009-02-01 00:00:00

  • Inhibition of the multidrug resistance protein 1 (MRP1) by peptidomimetic glutathione-conjugate analogs.

    abstract::Inhibition of multidrug resistance protein 1 (MRP1) mediated cytostatic drug efflux might be useful in the treatment of drug resistant tumors. Because the glutathione (GSH) conjugate of ethacrynic acid (EA), GS-EA, is a good substrate of MRP1, GS-EA derivatives are expected to be good inhibitors of MRP1. To study stru...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.62.5.1160

    authors: Burg D,Wielinga P,Zelcer N,Saeki T,Mulder GJ,Borst P

    更新日期:2002-11-01 00:00:00

  • Understanding the Bases of Function and Modulation of α7 Nicotinic Receptors: Implications for Drug Discovery.

    abstract::The nicotinic acetylcholine receptor (nAChR) belongs to a superfamily of pentameric ligand-gated ion channels involved in many physiologic and pathologic processes. Among nAChRs, receptors comprising the α7 subunit are unique because of their high Ca(2+) permeability and fast desensitization. nAChR agonists elicit a t...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章,评审

    doi:10.1124/mol.116.104240

    authors: Corradi J,Bouzat C

    更新日期:2016-09-01 00:00:00

  • Transcriptional Regulation of Human Cytosolic Sulfotransferase 1C3 by Peroxisome Proliferator-Activated Receptor γ in LS180 Human Colorectal Adenocarcinoma Cells.

    abstract::Cytosolic sulfotransferase 1C3 (SULT1C3) is the least characterized of the three human SULT1C subfamily members. Originally identified as an orphan SULT by computational analysis of the human genome, we recently reported that SULT1C3 is expressed in human intestine and LS180 colorectal adenocarcinoma cells and is upre...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.116.106005

    authors: Dubaisi S,Fang H,Kocarek TA,Runge-Morris M

    更新日期:2016-11-01 00:00:00

  • Desensitization of receptor-coupled activation of phosphoinositide-specific phospholipase C in platelets: evidence for distinct mechanisms for platelet-activating factor and thrombin.

    abstract::Platelet-activating factor (PAF) receptor-coupled activation of phosphoinositide-specific phospholipase C (PLC) was studied in platelets that were made refractory, by short-term pretreatments, to either PAF or thrombin. Generation of [3H]inositol triphosphate ( [3H]IP3) was monitored specifically for this purpose. [3H...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:

    authors: Morrison WJ,Shukla SD

    更新日期:1988-01-01 00:00:00

  • Identification and characterization of a potent activator of p53-independent cellular senescence via a small-molecule screen for modifiers of the integrated stress response.

    abstract::The Integrated Stress Response (ISR) is a signaling program that enables cellular adaptation to stressful conditions like hypoxia and nutrient deprivation in the tumor microenvironment. An important effector of the ISR is activating transcription factor 4 (ATF4), a transcription factor that regulates genes involved in...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:10.1124/mol.112.081810

    authors: Sayers CM,Papandreou I,Guttmann DM,Maas NL,Diehl JA,Witze ES,Koong AC,Koumenis C

    更新日期:2013-03-01 00:00:00

  • Albumin binding of anti-inflammatory drugs. Utility of a site-oriented versus a stoichiometric analysis.

    abstract::Binding equilibria of 12 nonsteroidal, anti-inflammatory substances, salicylic acid, diflunisal, phenylbutazone, azapropazone, fenbufen, biphenylacetic acid, naproxen, flurbiprofen, ibuprofin, diclofenac, indomethacin, and benoxaprofen, to defatted human serum albumin has been investigated at 37 degrees, pH 7.4, in a ...

    journal_title:Molecular pharmacology

    pub_type: 杂志文章

    doi:

    authors: Honoré B,Brodersen R

    更新日期:1984-01-01 00:00:00