Adenosine-A2a receptor down-regulates cerebral smooth muscle L-type Ca2+ channel activity via protein tyrosine phosphatase, not cAMP-dependent protein kinase.

abstract：:The 5-hydroxytryptamine3 receptor 5-HT3R has been implicated in gut and cardiac motility and in behavioral disorders. Characteristics of 5-HT3Rs appear to be heterogeneous among species, but human 5-HT3R cDNA has not been identified. We isolated a cDNA encoding 5-HT3R from human hippocampus. The mouse 5-HT3R gene has ...

journal_title：Molecular pharmacology

authors： Miyake A,Mochizuki S,Takemoto Y,Akuzawa S

更新日期：1995-09-01 00:00:00

abstract：:To determine the structural basis for binding subtype selective agonists in the beta-adrenergic receptor (beta AR), we examined the interaction of the mutant beta 2AR and chimeric beta 1/beta 2AR with a selective beta 2AR agonist, TA-2005 (8-hydroxy-5-[(1R)-1-hydroxy-2-[N-[(1R)-2-(p-methoxyphenyl)-1-methyle thy l] am...

journal_title：Molecular pharmacology

authors： Kikkawa H,Isogaya M,Nagao T,Kurose H

更新日期：1998-01-01 00:00:00

abstract：:A collection of analogues of atrial natriuretic peptide (ANP) were screened for their ability to inhibit ANP-induced cGMP stimulation. The antagonists revealed through this screen are structurally related; almost all are substituted at either aspartate-13 or phenylalanine-26. This tendency is consistent throughout sev...

journal_title：Molecular pharmacology

authors： von Geldern TW,Budzik GP,Dillon TP,Holleman WH,Holst MA,Kiso Y,Novosad EI,Opgenorth TJ,Rockway TW,Thomas AM

更新日期：1990-12-01 00:00:00

abstract：:Macrophage production of growth factors for fibroblasts, in particular platelet-derived growth factor B [PDGF(B)] and transforming growth factor-beta (TGF-beta), is thought to be central to the pathogenesis of pulmonary fibrosis. In a search for anti-inflammatory agents that might prevent this process, we asked whethe...

journal_title：Molecular pharmacology

authors： Wangoo A,Haynes AR,Sutcliffe SP,Sorooshian M,Shaw RJ

更新日期：1992-10-01 00:00:00

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

authors： Abkhezr M,Dryer SE

更新日期：2014-08-01 00:00:00

abstract：:Binding by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) to the Ah receptor leads to transcriptional activation of several genes and a toxicity syndrome that includes tumor promotion, wasting, hormonal and immune system dysfunction, and death. Recent findings indicate that TCDD may also affect cardiac function. Here, we ...

journal_title：Molecular pharmacology

authors： Canga L,Paroli L,Blanck TJ,Silver RB,Rifkind AB

更新日期：1993-12-01 00:00:00

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

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

更新日期：1983-09-01 00:00:00

abstract：:The availability of high-affinity agonists for peroxisome proliferator-activated receptor-beta/delta (PPARbeta/delta) has led to significant advances in our understanding of the functional role of PPARbeta/delta. In this study, a new PPARbeta/delta antagonist, 4-chloro-N-(2-{[5-trifluoromethyl)-2-pyridyl]sulfonyl}ethy...

journal_title：Molecular pharmacology

authors： Palkar PS,Borland MG,Naruhn S,Ferry CH,Lee C,Sk UH,Sharma AK,Amin S,Murray IA,Anderson CR,Perdew GH,Gonzalez FJ,Müller R,Peters JM

更新日期：2010-09-01 00:00:00

abstract：:Cu/Zn-superoxide dismutase (SOD)-accelerated oxidation of the benzene metabolite 1,4-hydroquinone (HQ) results in the enhanced formation of semiquinone anion radicals, electrophilic 1,4-benzoquinone (BQ), and H202. We selected bone marrow stromal cells and phiX-174 double stranded plasmid DNA as model systems to inves...

journal_title：Molecular pharmacology

authors： Li Y,Kuppusamy P,Zweir JL,Trush MA

更新日期：1996-03-01 00:00:00

abstract：:The aim of this study was to create and characterize constitutively active mutant (CAM) histamine H(1) receptors (H(1)R) using random mutagenesis methods to further investigate the activation process of the rhodopsin-like family of G protein-coupled receptors (GPCRs). This approach identified position 6.40 in TM 6 as ...

journal_title：Molecular pharmacology

authors： Bakker RA,Jongejan A,Sansuk K,Hacksell U,Timmerman H,Brann MR,Weiner DM,Pardo L,Leurs R

更新日期：2008-01-01 00:00:00

abstract：:The sympathetic nervous system modulates cardiac contractility and rate by activating beta-adrenergic receptors (beta AR) expressed on cardiac myocytes and specialized cells in the sinoatrial node and the conduction system. Recent clinical studies have suggested that beta-adrenergic receptors also play a role in cardi...

journal_title：Molecular pharmacology

authors： Devic E,Xiang Y,Gould D,Kobilka B

更新日期：2001-09-01 00:00:00

abstract：:Cyclic nucleotide analogs were used to study relaxation of pig coronary arteries and guinea pig tracheal smooth muscle in an attempt to determine the roles of cAMP- and cGMP-dependent protein kinases (cA-K and cG-K). In pig coronary artery strips, cGMP analogs were generally more effective than cAMP analogs in promoti...

journal_title：Molecular pharmacology

authors： Francis SH,Noblett BD,Todd BW,Wells JN,Corbin JD

更新日期：1988-10-01 00:00:00

abstract：:We previously reported that angiotensin II (Ang II) increases cGMP content through a new Ang II receptor subtype that is distinct from both the AT1 and AT2 subtypes in differentiated Neuro-2A cells. In this study, the mechanism of the Ang II-stimulated cGMP increase was investigated in comparison with bradykinin- and ...

journal_title：Molecular pharmacology

authors： Chaki S,Inagami T

更新日期：1993-04-01 00:00:00

abstract：:Up-regulation of fractalkine is involved in vascular and tissue damage in inflammatory conditions. Resveratrol has been shown to have anti-inflammatory, antioxidant, and antitumor activities. Its regulatory effects on expression of fractalkine in vascular endothelial cells and fractalkine receptor CX3CR1 in monocytes ...

journal_title：Molecular pharmacology

authors： Moon SO,Kim W,Sung MJ,Lee S,Kang KP,Kim DH,Lee SY,So JN,Park SK

更新日期：2006-07-01 00:00:00

abstract：:Two peptides, which have no significant homology with known protein structures, were obtained by microsequencing of a mu-opioid binding protein purified to homogeneity from bovine striatal membranes. Polyclonal antibodies generated against portions of these peptides immunoprecipitated up to 65% of radiolabeled purifie...

journal_title：Molecular pharmacology

authors： Gioannini TL,Yao YH,Hiller JM,Taylor LP,Simon EJ

更新日期：1993-10-01 00:00:00

abstract：:Prostaglandin E(2) (PGE(2)), originally discovered as a pro-inflammatory mediator, also inhibits several chemoattractant-elicited neutrophil functions, including adhesion, secretion of cytotoxic enzymes, production of superoxide anions, and chemotaxis. In this study, we have examined the effects of PGE(2) and prostagl...

journal_title：Molecular pharmacology

authors： Burelout C,Thibault N,Levasseur S,Simard S,Naccache PH,Bourgoin SG

更新日期：2004-08-01 00:00:00

abstract：:Effects of pimaric acid (PiMA) and eight closely related compounds on large-conductance K(+) (BK) channels were examined using human embryonic kidney (HEK) 293 cells, in which either the alpha subunit of BK channel (HEKBKalpha) or both alpha and beta1 (HEKBKalphabeta1) subunits were heterologously expressed. Effects o...

journal_title：Molecular pharmacology

authors： Imaizumi Y,Sakamoto K,Yamada A,Hotta A,Ohya S,Muraki K,Uchiyama M,Ohwada T

更新日期：2002-10-01 00:00:00

abstract：:The human caudate and putamen contain two high affinity binding sites for [3H]spiroperidol. Both of these affinity states exhibit dopaminergic selectivity. Ascorbic acid, at 0.1 mM, induces a slow loss of the low affinity component of [3H]spiroperidol binding in these tissues. The addition of guanyl nucleotides to the...

journal_title：Molecular pharmacology

authors： Andorn AC,Bacon BR,Nguyen-Hunh AT,Parlato SJ,Stitts JA

更新日期：1988-02-01 00:00:00

abstract：:Secreted R-spondin proteins (RSPOs1-4) function as adult stem cell growth factors by potentiating Wnt signaling. Simultaneous binding of distinct regions of the RSPO Fu1-Fu2 domain module to the extracellular domains (ECDs) of the LGR4 G protein-coupled receptor and the ZNRF3 transmembrane E3 ubiquitin ligase regulate...

journal_title：Molecular pharmacology

authors： Warner ML,Bell T,Pioszak AA

更新日期：2015-01-01 00:00:00

abstract：:Nod2 is an intracellular pattern recognition receptor that detects a conserved moiety of bacterial peptidoglycan and subsequently activates proinflammatory signaling pathways. Mutations in Nod2 have been implicated to be linked to inflammatory granulomatous disorders, such as Crohn's disease and Blau syndrome. Many ph...

journal_title：Molecular pharmacology

authors： Huang S,Zhao L,Kim K,Lee DS,Hwang DH

更新日期：2008-07-01 00:00:00

abstract：:The interactions between beta-adrenergic receptor (beta AR) antagonists and the beta(2)AR were studied with the use of photoaffinity labels. A proteolytic map of the receptor was made and confirmed through amino-terminal amino acid sequencing by locating sites of derivatization. [125I]Iodoazidothiophenylalprenolol (IA...

journal_title：Molecular pharmacology

authors： Hockerman GH,Girvin ME,Malbon CC,Ruoho AE

更新日期：1996-06-01 00:00:00

abstract：:Previous studies indicated that activation of alpha 1-adrenergic receptors in BC3H-1 muscle cells (S. K. Ambler and P. Taylor, J. Biol. Chem. 261:5866-5871, 1986) and muscarinic receptors in 1321N1 astrocytoma cells (S. B. Masters, T. K. Harden, and J. H. Brown, Mol. Pharmacol. 27:325-332, 1985) resulted in the rapid ...

journal_title：Molecular pharmacology

authors： Ambler SK,Thompson B,Solski PA,Brown JH,Taylor P

更新日期：1987-09-01 00:00:00

abstract：:Glutathione-liganded binuclear dinitrosyl iron complex (glut-BDNIC) has been proposed to be a donor of nitric oxide (NO). This study was undertaken to investigate the mechanisms of vasoactivity, systemic hemodynamic effects, and pharmacokinetics of glut-BDNIC. To test the hypothesis that glut-BDNICs vasodilate by rele...

journal_title：Molecular pharmacology

authors： Liu T,Zhang M,Terry MH,Schroeder H,Wilson SM,Power GG,Li Q,Tipple TE,Borchardt D,Blood AB

更新日期：2018-05-01 00:00:00

abstract：:In the rat isolated optic nerve, nitric oxide (NO) activates soluble guanylyl cyclase (sGC), resulting in a selective accumulation of cGMP in the axons. The axons are also selectively vulnerable to NO toxicity. The experiments initially aimed to determine any causative link between these two effects. It was shown, usi...

journal_title：Molecular pharmacology

authors： Garthwaite G,Goodwin DA,Neale S,Riddall D,Garthwaite J

更新日期：2002-01-01 00:00:00

abstract：:For several GPCRs, discrimination between agonism and antagonism is possible on the basis of thermodynamics parameters, such as binding enthalpy and entropy. In this study, we analyze whether agonists and antagonists can also be discriminated thermodynamically at the histamine H(1) receptor (H(1)R). Because previous s...

journal_title：Molecular pharmacology

authors： Wittmann HJ,Seifert R,Strasser A

更新日期：2009-07-01 00:00:00

abstract：:Both human ether-à-go-go-related gene (hERG1) and the closely related human ether-à-go-go (hEAG1) channel are aberrantly expressed in a large proportion of human cancers. In the present study, we demonstrate that transfection of hERG1 into mouse fibroblasts is sufficient to induce many features characteristic of malig...

journal_title：Molecular pharmacology

authors： Pier DM,Shehatou GS,Giblett S,Pullar CE,Trezise DJ,Pritchard CA,Challiss RA,Mitcheson JS

更新日期：2014-08-01 00:00:00

abstract：:The mitogen-activated protein kinase (MAPK) pathway plays a pivotal role in intracellular signaling, and this cascade may impinge on cAMP response elements (CREs) of target genes. Both the MAPK pathway and chromogranin A expression may be activated by cytosolic calcium influx, and calcium-dependent signals map onto th...

journal_title：Molecular pharmacology

authors： Tang K,Wu H,Mahata SK,O'Connor DT

更新日期：1998-07-01 00:00:00

abstract：:mRNA levels for the protooncogene c-fos, measured by Northern blot analysis, were greatly increased in brains of mice undergoing ethanol withdrawal seizures. This increase was transient (levels were increased at the time of the seizure and returned to normal by 24 hr or less after seizure) and was larger in hippocampu...

journal_title：Molecular pharmacology

authors： Dave JR,Tabakoff B,Hoffman PL

更新日期：1990-03-01 00:00:00

abstract：:Neuroactive steroids are efficacious potentiators of GABA-A receptors. Recent work has identified a site in the alpha1 subunit of the GABA-A receptor, that is essential for potentiation by steroids. However, each receptor contains two copies of the alpha1 subunit. We generated concatemers of subunits so that the alpha...

journal_title：Molecular pharmacology

authors： Bracamontes JR,Steinbach JH

更新日期：2009-04-01 00:00:00

abstract：:We reported previously the formation of a glutathionyl conjugate of the active metabolite (AM) of clopidogrel and the covalent modification of a cysteinyl residue of human cytochrome P450 2B6 in a reconstituted system (Mol Pharmacol 80:839-847, 2011). In this work, we extended our studies of the metabolism of clopidog...

journal_title：Molecular pharmacology

authors： Zhang H,Lau WC,Hollenberg PF

更新日期：2012-08-01 00:00:00