Specific inactivation by 17 beta-substituted steroids of rabbit and rat liver cytochromes P-450 responsible for progesterone 21-hydroxylation.

abstract：:Activation of muscarinic cholinergic receptors of 1321N1 human astrocytoma cells attenuates cyclic AMP accumulation. This effect results from an activation of phosphodiesterase with no direct inhibition of adenylate cyclase activity. In spite of this lack of coupling of muscarinic receptors to adenylate cyclase, guani...

journal_title：Molecular pharmacology

authors： Evans T,Martin MW,Hughes AR,Harden TK

更新日期：1985-01-01 00:00:00

abstract：:Phosphorylation of G protein-coupled receptors (GPCRs) by GPCR kinases (GRKs) is a major mechanism of desensitization of these receptors. GPCR activation of GRKs involves an allosteric site on GRKs distinct from the catalytic site. Although recent studies have suggested an important role of the N- and C-termini and do...

journal_title：Molecular pharmacology

authors： Baameur F,Morgan DH,Yao H,Tran TM,Hammitt RA,Sabui S,McMurray JS,Lichtarge O,Clark RB

更新日期：2010-03-01 00:00:00

abstract：:Cytochrome P450 (P450) enzymes are responsible for metabolizing drugs. Expression of P450s can directly affect drug metabolism, resulting in various outcomes in therapeutic efficacy and adverse effects. Several nuclear receptors are transcription factors that can regulate expression of P450s at both basal and drug-ind...

journal_title：Molecular pharmacology

authors： Chen L,Bao Y,Piekos SC,Zhu K,Zhang L,Zhong XB

更新日期：2018-07-01 00:00:00

abstract：:Schizophrenia (SZ), schizoaffective (SZA), and bipolar (BP) disorder are neurodevelopmental psychopathological conditions related, in part, to genetic load and, in part, to environmentally induced epigenetic dysregulation of chromatin structure and function in neocortical GABAergic, glutamatergic, and monoaminergic ne...

journal_title：Molecular pharmacology

authors： Dong E,Locci V,Gatta E,Grayson DR,Guidotti A

更新日期：2019-01-01 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：:Voltage-gated sodium channels are inhibited by many local anesthetics, antiarrhythmics, and antiepileptic drugs. The local anesthetic lidocaine appears to be able to access its binding site in the sodium channel only from the membrane phase or from the internal face of the channel. In contrast, the antiepileptic drug ...

journal_title：Molecular pharmacology

authors： Jo S,Bean BP

更新日期：2014-02-01 00:00:00

abstract：:We have identified four new mu-opiod receptor (MOR)-1 exons, indicating that the gene now contains at least nine exons spanning more than 200 kilobases. Replacement of exon 4 by combinations of the new exons yields three new receptors. When expressed in Chinese hamster ovary cells, all three variants displayed high af...

journal_title：Molecular pharmacology

authors： Pan YX,Xu J,Bolan E,Abbadie C,Chang A,Zuckerman A,Rossi G,Pasternak GW

更新日期：1999-08-01 00:00:00

abstract：:Nitric oxide (NO) possesses potent anti-inflammatory properties; however, an over-production of NO will promote inflammation and induce cell and tissue dysfunction. Thus, the ability to precisely regulate NO production could prove beneficial in controlling damage. In this study, advantage was taken of the well charact...

journal_title：Molecular pharmacology

authors： Bian K,Harari Y,Zhong M,Lai M,Castro G,Weisbrodt N,Murad F

更新日期：2001-04-01 00:00:00

abstract：:Nicotine biotransformation affects the smoking habits of addicted individuals and therefore their health risk. Using an improved analytical method, we have discovered that the human UDP-glucuronosyltransferase (UGT) 2B10, a liver enzyme previously unknown to conjugate nicotine or exhibit considerable activity toward a...

journal_title：Molecular pharmacology

authors： Kaivosaari S,Toivonen P,Hesse LM,Koskinen M,Court MH,Finel M

更新日期：2007-09-01 00:00:00

abstract：:The anticancer agent 2-cyano-3,12-dioxooleana-1,9-dien-28-oic acid (CDDO) and its methyl ester (CDDO-Me) typically induce a broad spectrum of growth-inhibitory, proapoptotic, and antiangiogenic responses. Treatment of Panc1, Panc28, and L3.6pL pancreatic cancer cells with low micromolar concentrations of CDDO or CDDO-...

journal_title：Molecular pharmacology

authors： Jutooru I,Chadalapaka G,Abdelrahim M,Basha MR,Samudio I,Konopleva M,Andreeff M,Safe S

更新日期：2010-08-01 00:00:00

abstract：:When expressed via an inducible promoter in human embryonic kidney 293 cells, the rat Mas-related gene D (rMrgD) receptor responded to beta-alanine but not L-alanine by elevating intracellular [Ca(2+)], stimulating phosphorylation of the mitogenactivated protein kinases known as extracellular signal-regulated kinase (...

journal_title：Molecular pharmacology

authors： Milasta S,Pediani J,Appelbe S,Trim S,Wyatt M,Cox P,Fidock M,Milligan G

更新日期：2006-02-01 00:00:00

abstract：:Prokaryotes produce a variety of toxins that affect genomic function of both eukaryotes and prokaryotes. The 375-base pair bacterial gene Streptoalloteichus hindustanus (Sh) ble encodes a small protein, Streptoalloteichus hindustanus bleomycin resistance protein (BRP), that inhibits in vitro DNA cleavage by the prokar...

journal_title：Molecular pharmacology

authors： Calmels TP,Mistry JS,Watkins SC,Robbins PD,McGuire R,Lazo JS

更新日期：1993-12-01 00:00:00

abstract：:Polycyclic aromatic hydrocarbons (PAHs) are widely distributed environmental toxicants derived from sources that include cigarette smoke, petroleum distillation, gas- and diesel-engine exhaust, and charcoal-grilled food. The gastrointestinal tract is the principal route of PAH exposures, even when inhaled. The most th...

journal_title：Molecular pharmacology

authors： Shi Z,Dragin N,Gálvez-Peralta M,Jorge-Nebert LF,Miller ML,Wang B,Nebert DW

更新日期：2010-07-01 00:00:00

abstract：:Bioassay-guided fractionation was used to isolate the lignan polygamain as the microtubule-active constituent in the crude extract of the Mountain torchwood, Amyris madrensis. Similar to the effects of the crude plant extract, polygamain caused dose-dependent loss of cellular microtubules and the formation of aberrant...

journal_title：Molecular pharmacology

authors： Hartley RM,Peng J,Fest GA,Dakshanamurthy S,Frantz DE,Brown ML,Mooberry SL

更新日期：2012-03-01 00:00:00

abstract：:Binding of [3H](d)-N-allylnormetazocine ([3H](d)-NANM) to rat brain membranes is stereospecific, reversible, and saturable (Bmax = 260 fmol/mg of protein) and manifests moderately high affinity (Kd = 20 nM). The rank order of potency among opioidbenzomorphans and phencyclidine (PCP) analogs for competition for [3H](d)...

journal_title：Molecular pharmacology

authors： Itzhak Y,Hiller JM,Simon EJ

更新日期：1985-01-01 00:00:00

abstract：:The effects of ethanol on a number of electrophysiological parameters were examined in 10 different voltage-gated potassium channels expressed in Xenopus oocytes. None of the channels examined was highly sensitive to ethanol, but there was significant variability among the channels tested at concentrations of ethanol ...

journal_title：Molecular pharmacology

authors： Anantharam V,Bayley H,Wilson A,Treistman SN

更新日期：1992-09-01 00:00:00

abstract：:The N-methyl-D-aspartate (NMDA) receptor is believed to play a major role in learning and in excitotoxic neuronal damage associated with stroke and epilepsy. Pregnenolone sulfate, a neurosteroid, specifically enhances NMDA-gated currents in spinal cord neurons, while inhibiting receptors for the inhibitory amino acids...

journal_title：Molecular pharmacology

authors： Wu FS,Gibbs TT,Farb DH

更新日期：1991-09-01 00:00:00

abstract：:Systematic series of monoamines, diamines, and triamines were used to define the structural requirements for interaction at the polyamine recognition site of the N-methyl-D-aspartate receptor complex. Effects of amines on binding of [3H]MK-801 to washed synaptic plasma membranes were measured in the presence of L-glut...

journal_title：Molecular pharmacology

authors： Romano C,Williams K,DePriest S,Seshadri R,Marshall GR,Israel M,Molinoff PB

更新日期：1992-04-01 00:00:00

abstract：:Guanine nucleotide-binding proteins (G proteins) transduce signals from agonist- and light-sensitive receptors. In the visual excitation system, the photon receptor rhodopsin is coupled to the G protein Gt (transducin). Gt is composed of alpha, beta, and gamma subunits; the alpha subunit binds guanine nucleotide, wher...

journal_title：Molecular pharmacology

authors： Halpern JL,Moss J

更新日期：1990-06-01 00:00:00

abstract：:Several reports have been published recently demonstrating a beneficial effect of epidermal growth factor receptor (EGFR) inhibitors in improving pathologic and behavioral conditions in neurodegenerative diseases (NDDs) such as Alzheimer's disease and Amyotrophic Lateral Sclerosis (ALS) as well as the brain and spinal...

journal_title：Molecular pharmacology

authors： Tavassoly O,Sato T,Tavassoly I

更新日期：2020-07-01 00:00:00

abstract：:The subunit composition and pharmacological regulation of rat neuronal nicotinic cholinergic receptors were assessed. Specific immunoprecipitation was determined in solubilized rat brain homogenates using [3H]cytisine, a high affinity agonist at nicotinic receptors, in conjunction with polyclonal antisera generated ag...

journal_title：Molecular pharmacology

authors： Flores CM,Rogers SW,Pabreza LA,Wolfe BB,Kellar KJ

更新日期：1992-01-01 00:00:00

abstract：:Small-molecule restoration of wild-type structure and function to mutant p53 (so-called mutant reactivation) is a highly sought-after goal in cancer drug development. We previously discovered that small-molecule zinc chelators called zinc metallochaperones (ZMCs) reactivate mutant p53 by restoring zinc binding to zinc...

journal_title：Molecular pharmacology

authors： Yu X,Blanden A,Tsang AT,Zaman S,Liu Y,Gilleran J,Bencivenga AF,Kimball SD,Loh SN,Carpizo DR

更新日期：2017-06-01 00:00:00

abstract：:The highly conserved aspartate residue in the second transmembrane domain of G protein-coupled receptors is present in position 113 in the type 1 neurotensin receptor (NTR1) but is replaced by an Ala residue in position 79 in the type 2 neurotensin receptor (NTR2). NTR1 couples to Galphaq to stimulate phospholipase C ...

journal_title：Molecular pharmacology

authors： Martin S,Botto JM,Vincent JP,Mazella J

更新日期：1999-02-01 00:00:00

abstract：:Styrylquinoline derivatives (SQ) efficiently inhibit the 3'-processing activity of integrase (IN) with IC50 values of between 0.5 and 5 microM. We studied the mechanism of action of these compounds in vitro. First, we used steady-state fluorescence anisotropy to assay the effects of the SQ derivatives on the formation...

journal_title：Molecular pharmacology

authors： Deprez E,Barbe S,Kolaski M,Leh H,Zouhiri F,Auclair C,Brochon JC,Le Bret M,Mouscadet JF

更新日期：2004-01-01 00:00:00

abstract：:Metyrapone administration to 21- and 90-day-old male rats causes a transcriptional induction of the hepatic glucocorticoid-inducible CYP3A1 gene within an hour as determined by nuclear run-on experiments. Analyses performed 24 hr after metyrapone administration in both ages of rat demonstrate that the transcriptional ...

journal_title：Molecular pharmacology

authors： Wright MC,Wang XJ,Pimenta M,Ribeiro V,Paine AJ,Lechner MC

更新日期：1996-10-01 00:00:00

abstract：:The initial event upon binding of insulin-like growth factor 1 to the insulin-like growth factor type-I receptor (IGF-1R) is auto-phosphorylation of tyrosine residues within the activation loop of the kinase domain followed by phosphorylation of other receptor tyrosine residues and the subsequent activation of the int...

journal_title：Molecular pharmacology

authors： Vasilcanu R,Vasilcanu D,Sehat B,Yin S,Girnita A,Axelson M,Girnita L

更新日期：2008-03-01 00:00:00

abstract：:The heart is richly endowed with K(ATP) channels, which function as biological sensors, regulating membrane potentials and electrical excitability in response to metabolic alterations. We recently reported that the cytochrome P450 metabolites of arachidonic acid, epoxyeicosatrienoic acids (EETs), potently activate car...

journal_title：Molecular pharmacology

authors： Lu T,VanRollins M,Lee HC

更新日期：2002-11-01 00:00:00

abstract：:The dopamine (DA) transporter (DAT) mediates the removal of released DA. DAT is the major molecular target responsible for the rewarding properties and abuse potential of the psychostimulant amphetamine (AMPH). AMPH has been shown to reduce the number of DATs at the cell surface, and this AMPH-induced cell surface DAT...

journal_title：Molecular pharmacology

authors： Kahlig KM,Lute BJ,Wei Y,Loland CJ,Gether U,Javitch JA,Galli A

更新日期：2006-08-01 00:00:00

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

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

abstract：:The successful synthesis of dolastatin 11, a depsipeptide originally isolated from the mollusk Dolabella auricularia, permitted us to study its effects on cells. The compound arrested cells at cytokinesis by causing a rapid and massive rearrangement of the cellular actin filament network. In a dose-and time-dependent ...

journal_title：Molecular pharmacology

authors： Bai R,Verdier-Pinard P,Gangwar S,Stessman CC,McClure KJ,Sausville EA,Pettit GR,Bates RB,Hamel E

更新日期：2001-03-01 00:00:00