Alpha 2-adrenoceptor stimulation affects total glucose utilization in isolated islets of Langerhans.

abstract：:Cytokines are thought to cause the depression of cytochrome P-450 (CYP)-associated drug metabolism in humans during inflammation and infection. We have examined the role of five cytokines, i.e., interleukin-1 beta, interleukin-4, interleukin-6, tumor necrosis factor-alpha, and interferon-gamma, on the expression of CY...

journal_title：Molecular pharmacology

authors： Abdel-Razzak Z,Loyer P,Fautrel A,Gautier JC,Corcos L,Turlin B,Beaune P,Guillouzo A

更新日期：1993-10-01 00:00:00

abstract：:The molecular determinants of high-affinity human ether-a-go-go-related gene (HERG) potassium channel blockade by methanesulfonanilides include two aromatic residues (Phe656 and Tyr652) on the inner helices (S6) and residues on the pore helices that face into the inner cavity, but determinants for lower-affinity HERG ...

journal_title：Molecular pharmacology

authors： Witchel HJ,Dempsey CE,Sessions RB,Perry M,Milnes JT,Hancox JC,Mitcheson JS

更新日期：2004-11-01 00:00:00

abstract：:Based on biochemical and ligand binding studies in various tissues and species, evidence for several alpha 2-adrenergic receptor subtypes has accumulated. The current alpha 2-adrenergic receptor classification (alpha 2A, alpha 2B, alpha 2C) is based exclusively on pharmacological criteria. The molecular cloning of thr...

journal_title：Molecular pharmacology

authors： Lorenz W,Lomasney JW,Collins S,Regan JW,Caron MG,Lefkowitz RJ

更新日期：1990-11-01 00:00:00

abstract：:alpha 1-Adrenergic receptor (alpha 1-AR) agonists elevate the intracellular calcium concentration ([Ca2+]i) in 60-80% of astroglia in vitro. Likewise, 60-70% of astroglia exhibit specific binding sites for the alpha 1-AR-selective antagonist (+-)-125I-[beta-(4-hydroxyphenyl)-ethylaminomethyl]tetralone. The density of ...

journal_title：Molecular pharmacology

authors： Shao Y,McCarthy KD

更新日期：1993-08-01 00:00:00

abstract：:The neuropeptides vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase-activating peptide (PACAP) and their class II G protein-coupled receptors VPAC(1), VPAC(2), and PAC(1) play important roles in human physiology. No small molecule modulator has ever been reported for the VIP/PACAP receptors, and ther...

journal_title：Molecular pharmacology

authors： Chu A,Caldwell JS,Chen YA

更新日期：2010-01-01 00:00:00

abstract：:Structural changes in the macromolecular targets of pharmacological agents can result in alterations in the efficacy of these agents. In previous studies, we identified a variant structural form of thymidylate synthase (TS) that is associated with relative resistance to 5-fluoro-2'-deoxyuridine, in a human colonic tum...

journal_title：Molecular pharmacology

authors： Barbour KW,Hoganson DK,Berger SH,Berger FG

更新日期：1992-08-01 00:00:00

abstract：:The endogenous bronchodilator, S-nitrosoglutathione (GSNO), increases expression, maturation, and function of both the wild-type and the DeltaF508 mutant of the cystic fibrosis transmembrane conductance regulatory protein (CFTR). Though transcriptional mechanisms of action have been identified, GSNO seems also to have...

journal_title：Molecular pharmacology

authors： Zaman K,Carraro S,Doherty J,Henderson EM,Lendermon E,Liu L,Verghese G,Zigler M,Ross M,Park E,Palmer LA,Doctor A,Stamler JS,Gaston B

更新日期：2006-10-01 00:00:00

abstract：:Taxanes act by inhibiting microtubule dynamics; in this study, we have investigated mitochondria as an additional target of taxanes. We incubated isolated mitochondria in the presence of taxanes with or without stimulation of the mitochondrial respiratory state. Results showed that they rapidly induced the loss of del...

journal_title：Molecular pharmacology

authors： Ferlini C,Raspaglio G,Mozzetti S,Distefano M,Filippetti F,Martinelli E,Ferrandina G,Gallo D,Ranelletti FO,Scambia G

更新日期：2003-07-01 00:00:00

abstract：:Acute desensitization of mu opioid receptors is thought to be an initial step in the development of tolerance to opioids. Given the resistance of the respiratory system to develop tolerance, desensitization of neurons in the Kölliker-Fuse (KF), a key area in the respiratory circuit, was examined. The activation of G p...

journal_title：Molecular pharmacology

authors： Levitt ES,Williams JT

更新日期：2018-01-01 00:00:00

abstract：:Sulfation, catalyzed by members of the sulfotransferase (SULT) superfamily, exerts considerable influence over the biological activity of numerous endogenous and xenobiotic chemicals. In humans, catecholamines such as dopamine are extensively sulfated, and a SULT isoform (SULT1A3 or the monoamine-sulfating form of phe...

journal_title：Molecular pharmacology

authors： Dajani R,Hood AM,Coughtrie MW

更新日期：1998-12-01 00:00:00

abstract：:Ovarian cancer is the leading cause of death from gynecological malignancy and has the worst prognosis of all gynecological cancers. Vascular endothelial growth factor (VEGF) plays an important role in ovarian cancer development. 9-beta-D-Arabinofuranosyl-2-fluoroadenine (Fara-A), a nucleotide analog, is frequently us...

journal_title：Molecular pharmacology

authors： Fang J,Cao Z,Chen YC,Reed E,Jiang BH

更新日期：2004-07-01 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：:It has long been believed that the cortical actin cytoskeleton plays an important role in regulating the secretion of hormones and neurotransmitters. In this study, we investigated the control of actin dynamics in primary neuroendocrine cells and determined the relationship of actin dynamics to various components of t...

journal_title：Molecular pharmacology

authors： Bittner MA,Holz RW

更新日期：2005-04-01 00:00:00

abstract：:Many human cancers show constitutive or amplified expression of the transcriptional regulator and oncoprotein Myc, making Myc a potential target for therapeutic intervention. Here we report the down-regulation of Myc activity by reducing the availability of Max, the essential dimerization partner of Myc. Max is expres...

journal_title：Molecular pharmacology

authors： Jiang H,Bower KE,Beuscher AE 4th,Zhou B,Bobkov AA,Olson AJ,Vogt PK

更新日期：2009-09-01 00:00:00

abstract：:Cytosolic sulfotransferase (SULT)-mediated sulfation plays an essential role in the detoxification of bile acids and is necessary to avoid pathological conditions, such as cholestasis, liver damage, and colon cancer. In this study, using transgenic mice bearing conditional expression of the activated constitutive andr...

journal_title：Molecular pharmacology

authors： Saini SP,Sonoda J,Xu L,Toma D,Uppal H,Mu Y,Ren S,Moore DD,Evans RM,Xie W

更新日期：2004-02-01 00:00:00

abstract：:Activation of alpha 1-adrenergic receptors (alpha 1-AR) increases Na+/H+ exchange (NHE) in proximal tubule. NHE mediates the majority of active Na+ absorption in the proximal tubule. Three alpha 1-AR subtypes have been detected in kidney by molecular and binding techniques. We detected message for all three alpha 1-AR...

journal_title：Molecular pharmacology

authors： Liu F,Nesbitt T,Drezner MK,Friedman PA,Gesek FA

更新日期：1997-12-01 00:00:00

abstract：:Regulators of G-protein signaling (RGS) proteins are important components of signal transduction pathways initiated through G-protein-coupled receptors (GPCRs). RGS proteins accelerate the intrinsic GTPase activity of G-protein alpha-subunits (Galpha) and thus shorten the time course and reduce the magnitude of G-prot...

journal_title：Molecular pharmacology

authors： Roman DL,Talbot JN,Roof RA,Sunahara RK,Traynor JR,Neubig RR

更新日期：2007-01-01 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：:1-[6-[[(17beta)-3-methoxyestra-1,3,5(10)-trien-17-yl]amino]hexyl]-1H-pyrrole-2,5-dione (U73122) is widely used to inhibit phospholipase C (PLC)-mediated signaling, but we and others have also reported a PLC-independent block of Kir3 channels in native cells. To elaborate on this major side effect, we examined the acti...

journal_title：Molecular pharmacology

authors： Klose A,Huth T,Alzheimer C

更新日期：2008-11-01 00:00:00

abstract：:A nonnaturally occurring L-configuration nucleoside analog, L-beta-5-bromovinyl-(2-hydroxymethyl)-1,3-(dioxolanyl)uracil (L-BVOddU) selectively inhibited varicella-zoster virus growth in human embryonic lung (HEL) 299 cell culture with an EC(50) of 0.055 microM, whereas no inhibition of CEM and HEL 299 cell growth or ...

journal_title：Molecular pharmacology

authors： Li L,Dutschman GE,Gullen EA,Tsujii E,Grill SP,Choi Y,Chu CK,Cheng YC

更新日期：2000-11-01 00:00:00

abstract：:Neuroactive steroids bind to a unique site on the gamma-aminobutyric acidA (GABAA) receptor complex and allosterically modulate the binding of convulsant ([35S]t-butylbicyclophosphorothionate, [35S]TBPS), GABA ([3H]muscimol), and benzodiazepine ([3H]flunitrazepam) site ligands. In rat cortical membranes, 3 alpha-hydro...

journal_title：Molecular pharmacology

authors： Hawkinson JE,Drewe JA,Kimbrough CL,Chen JS,Hogenkamp DJ,Lan NC,Gee KW,Shen KZ,Whittemore ER,Woodward RM

更新日期：1996-05-01 00:00:00

abstract：:[3H]P1075 binding to membrane preparations of rabbit skeletal muscle were observed in the presence of nucleotide triphosphates or diphosphates but not AMP, cAMP, adenosine, tripolyphosphate, or pyrophosphate. Nonhydrolyzable or poorly hydrolyzable ATP analogs inhibited MgATP-supported binding. The EC50 value for MgATP...

journal_title：Molecular pharmacology

authors： Dickinson KE,Bryson CC,Cohen RB,Rogers L,Green DW,Atwal KS

更新日期：1997-09-01 00:00:00

abstract：:Ethanol administration to rats by ethanol vapor inhalation (14 days) results in a 40-50% reduction in the level of gamma-aminobutyric acidA (GABAA) receptor alpha 1 subunit mRNAs [4.4 and 4.8 kilobases (kb)] in the cerebral cortex. The level of alpha 2 subunit mRNA (8.0 kb) was also reduced by 29%, whereas there was n...

journal_title：Molecular pharmacology

authors： Montpied P,Morrow AL,Karanian JW,Ginns EI,Martin BM,Paul SM

更新日期：1991-02-01 00:00:00

abstract：:Multidrug resistance-associated protein 2 (MRP2) transports glutathione conjugates, glucuronide conjugates, and sulfated conjugates of bile acids. In the present study, we examined the role of charged amino acids in the transmembrane domains of rat Mrp2, conserved among MRP families, using the isolated membrane vesicl...

journal_title：Molecular pharmacology

authors： Ito K,Suzuki H,Sugiyama Y

更新日期：2001-05-01 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 precise mechanism by which the cellular uptake of the endocannabinoid anandamide (AEA) occurs has been the source of much debate. In the current study, we show that neuronal differentiated CAD (dCAD) cells accumulate anandamide by a process that is inhibited in a dose-dependent manner by N-(4-hydroxyphenyl)arachid...

journal_title：Molecular pharmacology

authors： McFarland MJ,Bardell TK,Yates ML,Placzek EA,Barker EL

更新日期：2008-07-01 00:00:00

abstract：:The midbrain periaqueductal gray (PAG) is involved in organizing behavioral responses to threat, stress, and pain. These PAG functions are modulated by cholinergic agents. In the present study, we examined the cholinergic modulation of synaptic transmission in the PAG using whole-cell voltage-clamp recordings from rat...

journal_title：Molecular pharmacology

authors： Lau BK,Vaughan CW

更新日期：2008-11-01 00:00:00

abstract：:CC and CXC chemokines coinduced in fibroblasts and leukocytes by cytokines and microbial agents determine the number of phagocytes infiltrating into inflamed tissues. Interleukin-8/CXCL8 and stromal cell-derived factor-1/CXCL12 significantly and dose-dependently increased the migration of monocytes, expressing the cor...

journal_title：Molecular pharmacology

authors： Gouwy M,Struyf S,Noppen S,Schutyser E,Springael JY,Parmentier M,Proost P,Van Damme J

更新日期：2008-08-01 00:00:00

abstract：:Glioma cells with stem cell properties, termed glioma stem-like cells (GSCs), have been linked to tumor formation, maintenance, and progression and are responsible for the failure of chemotherapy and radiotherapy. Because conventional glioma treatments often fail to eliminate GSCs completely, residual surviving GSCs a...

journal_title：Molecular pharmacology

authors： Kim RK,Kim MJ,Yoon CH,Lim EJ,Yoo KC,Lee GH,Kim YH,Kim H,Jin YB,Lee YJ,Cho CG,Oh YS,Gye MC,Suh Y,Lee SJ

更新日期：2012-09-01 00:00:00

abstract：:Advances in proteomic methodologies based on quantitative mass spectrometry are now transforming pharmacology and experimental biology more broadly. The present review will discuss several examples, based on work in the author's laboratory that focuses on delineating relationships between GPCR signaling and traffickin...

journal_title：Molecular pharmacology

authors： von Zastrow M

更新日期：2020-12-22 00:00:00