Morphine desensitization, internalization, and down-regulation of the mu opioid receptor is facilitated by serotonin 5-hydroxytryptamine2A receptor coactivation.

abstract：:Cross-talk between G protein-coupled receptors and protein tyrosine kinases is well established, but the phenotypic consequences of these signaling interactions are not completely understood. To investigate the role of Src family kinases in mitogenic signaling by G protein-coupled receptors, we used genetic and pharma...

journal_title：Molecular pharmacology

authors： Mishra R,Wang Y,Simonson MS

更新日期：2005-06-01 00:00:00

abstract：:The blocking effects of guanethidine on electrically induced, neurally mediated, contractions of the guinea pig vas deferens in vitro could be markedly antagonized by the bee venom polypeptide apamin (20-60 nM), by 0.1 mM methylene blue, and (less regularly) by 0.1-0.15 mM quinine, three substances known to inhibit ca...

journal_title：Molecular pharmacology

authors： Stutzin A,Paravic F,Ormenño G,Orrego F

更新日期：1983-03-01 00:00:00

abstract：:Organic anion transporting polypeptides (Oatp) mediate the transport of a wide variety of amphipathic organic substrates. Rat Oatp1b2 and human OATP1B3 are members of a liver-specific subfamily of Oatps/OATPs. We investigated whether prolactin (PRL) and growth hormone (GH) regulated Oatp1b2 and OATP1B3 gene expression...

journal_title：Molecular pharmacology

authors： Wood M,Ananthanarayanan M,Jones B,Wooton-Kee R,Hoffman T,Suchy FJ,Vore M

更新日期：2005-07-01 00:00:00

abstract：:The fluorogenic sulfhydryl probe 7-diethylamino-3-(4'-maleimidylphenyl)-4-methylcoumarin (CPM) (1-50 nM) is used to characterize the functional role and location of highly reactive thiol groups on the ryanodine-sensitive Ca2+ release channel complex [i.e., ryanodine receptors (RyRs)] of skeletal and cardiac junctional...

journal_title：Molecular pharmacology

authors： Liu G,Abramson JJ,Zable AC,Pessah IN

更新日期：1994-02-01 00:00:00

abstract：:Mitochondria contain specific Ca2+ antagonist binding sites that are associated with an inner mitochondrial membrane anion channel. These mitochondrial Ca2+ antagonist receptors can be solubilized with digitonin and partially purified [as assessed by postreversible (+/-)-[3H]nitrendipine binding] using ion exchange ch...

journal_title：Molecular pharmacology

authors： Zernig G

更新日期：1992-12-01 00:00:00

abstract：:Neuroactive steroids have been postulated to cause anesthesia by binding to unique steroid recognition sites on gamma-aminobutyric acid (GABA) receptors and modulating GABA receptor function. Steroids interact with these sites diastereoselectively, but it is unknown whether steroid sites show enantioselectivity. To ad...

journal_title：Molecular pharmacology

authors： Wittmer LL,Hu Y,Kalkbrenner M,Evers AS,Zorumski CF,Covey DF

更新日期：1996-12-01 00:00:00

abstract：:Sazetidine-A has been recently proposed to be a "silent desensitizer" of alpha4beta2 nicotinic acetylcholine receptors (nAChRs), implying that it desensitizes alpha4beta2 nAChRs without first activating them. This unusual pharmacological property of sazetidine-A makes it, potentially, an excellent research tool to dis...

journal_title：Molecular pharmacology

authors： Zwart R,Carbone AL,Moroni M,Bermudez I,Mogg AJ,Folly EA,Broad LM,Williams AC,Zhang D,Ding C,Heinz BA,Sher E

更新日期：2008-06-01 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：:We synthesized a novel platinum drug, cis-[PtCl(NH3)2(N7-ACV)]+, in which ACV is the antiviral drug acyclovir [a deoxyriboguanosine analogue, 9-(2-hydroxyethoxymethyl)guanine]. This new compound exhibits antiviral efficacy in vitro and exhibits an antitumor activity profile different from that of cisplatin [Metal-Base...

journal_title：Molecular pharmacology

authors： Balcarová Z,Kaspárková J,Zákovská A,Nováková O,Sivo MF,Natile G,Brabec V

更新日期：1998-05-01 00:00:00

abstract：:Our previous studies suggested that the dNTP/dNDP transporter systems that exist in mitochondria for transporting dNTP/dNDP from the cytoplasm to the mitochondria for mitochondrial DNA (mtDNA) synthesis play a critical role in delayed cytotoxicity of anti-human immunodeficiency virus (HIV) dideoxynucleoside analogs in...

journal_title：Molecular pharmacology

authors： Lam W,Chen C,Ruan S,Leung CH,Cheng YC

更新日期：2005-02-01 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：:Squamous cell carcinoma of the head and neck (SCCHN) is one of the most common malignancies worldwide, with low 5-year survival rates. Current strategies that block epidermal growth factor receptor (EGFR) have limited effects when administered as single agents. Targeting EGFR via intratumoral administration of phospho...

journal_title：Molecular pharmacology

authors： Thomas SM,Ogagan MJ,Freilino ML,Strychor S,Walsh DR,Gooding WE,Grandis JR,Zamboni WC

更新日期：2008-03-01 00:00:00

abstract：:Mouse embryonic spinal cord neurons in culture exhibit spontaneous calcium oscillations from day in vitro (DIV) 6 through DIV 10. Such spontaneous activity in developing spinal cord contributes to maturation of synapses and development of pattern-generating circuits. Here we demonstrate that these calcium oscillations...

journal_title：Molecular pharmacology

authors： Kelamangalath L,Dravid SM,George J,Aldrich JV,Murray TF

更新日期：2011-06-01 00:00:00

abstract：:alpha4beta2 nicotinic acetylcholine receptors (nAChRs) are recognized as the principal nicotine binding site in brain. Recombinant alpha4beta2 nAChR demonstrate biphasic concentration-response relationships with low- and high-EC50 components. This study shows that untranslated regions (UTR) can influence expression of...

journal_title：Molecular pharmacology

authors： Briggs CA,Gubbins EJ,Marks MJ,Putman CB,Thimmapaya R,Meyer MD,Surowy CS

更新日期：2006-07-01 00:00:00

abstract：:Eukaryotic cells assemble stress granules (SGs) when translation initiation is inhibited. Different cell signaling pathways regulate SG production. Particularly relevant to this process is 5'-AMP-activated protein kinase (AMPK), which functions as a stress sensor and is transiently activated by adverse physiologic con...

journal_title：Molecular pharmacology

authors： Mahboubi H,Koromilas AE,Stochaj U

更新日期：2016-10-01 00:00:00

abstract：:S-Adenosylmethionine (SAMe) and its metabolite 5'-methylthioadenosine (MTA) inhibit mitogen-induced proliferative response in liver and colon cancer cells. SAMe and MTA are also proapoptotic in liver cancer cells by selectively inducing Bcl-x(S) expression. The aims of this work were to assess whether these agents are...

journal_title：Molecular pharmacology

authors： Li TW,Zhang Q,Oh P,Xia M,Chen H,Bemanian S,Lastra N,Circ M,Moyer MP,Mato JM,Aw TY,Lu SC

更新日期：2009-07-01 00:00:00

abstract：:Three different cDNA clones, namely DM1-1, Dah1, and Dah2, encoding hepatic cytochrome P-450, were isolated from a cDNA library in lambda gt11 constructed from liver RNA of polychlorinated biphenyl-treated beagle dogs. DM1-1 was 1857 base pairs (bp) long and encoded a polypeptide of 457 residues. Dah1 was 2394 bp long...

journal_title：Molecular pharmacology

authors： Uchida T,Komori M,Kitada M,Kamataki T

更新日期：1990-11-01 00:00:00

abstract：:A quantum chemical study of adenosine, formycin, and their 2-NH2 and 2-F derivatives is performed. The tautomerism of neutral and protonated species as well as the protonation of adenosine, formycin, and their derivatives are theoretically studied using semiempirical MNDO and AM1, as well as ab initio STO-3G methods. ...

journal_title：Molecular pharmacology

authors： Orozco M,Canela EI,Franco R

更新日期：1989-02-01 00:00:00

abstract：:alpha-Amidation is essential for the function of many peptides in intercellular communication. This C-terminal modification is mediated in a two-step process by the hydroxylase and lyase activities of the bifunctional enzyme, peptidylglycine alpha-amidating monooxygenase (PAM). The first step, catalyzed by peptidylgly...

journal_title：Molecular pharmacology

authors： Driscoll WJ,Mueller SA,Eipper BA,Mueller GP

更新日期：1999-06-01 00:00:00

abstract：:GH3 cells show spontaneous activity characterized by bursts of action potentials and oscillations in [Ca 2+]i. This activity is modulated by the activation of exogenously expressed opioid receptors. In GH3 cells expressing only micro receptors (GH3MOR cells), the micro receptor-specific ligand [D-Ala2,N-Me-Phe4,Gly5-o...

journal_title：Molecular pharmacology

authors： Charles AC,Mostovskaya N,Asas K,Evans CJ,Dankovich ML,Hales TG

更新日期：2003-01-01 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：:Controlled inhibition of brain acetyl- and butyrylcholinesterases (AChE and BChE, respectively) and of monoamine oxidase-B (MAO-B) may slow neurodegeneration in Alzheimer's and Parkinson's diseases. It was postulated that certain carbamate esters would inhibit AChE and BChE with the concomitant release in the brain of...

journal_title：Molecular pharmacology

authors： Groner E,Ashani Y,Schorer-Apelbaum D,Sterling J,Herzig Y,Weinstock M

更新日期：2007-06-01 00:00:00

abstract：:The nuclear pregnane X receptor (PXR) and constitutive androstane receptor (CAR) play central roles in protecting the body against environmental chemicals (xenobiotics). PXR and CAR are activated by a wide range of xenobiotics and regulate cytochrome P450 and other genes whose products are involved in the detoxificati...

journal_title：Molecular pharmacology

authors： Maglich JM,Stoltz CM,Goodwin B,Hawkins-Brown D,Moore JT,Kliewer SA

更新日期：2002-09-01 00:00:00

abstract：:Rat cerebellar granule cells express 5-hydroxytryptamine (5-HT)2 receptors that mediate phosphoinositide turnover by a pertussis toxin-sensitive mechanism. Prestimulation of these neurons with 10 microM 5-HT or (+/-)-2,5-dimethoxy-4-iodophenyl-2-aminopropane [(+/-)-DOI], a putative 5-HT2 receptor agonist, resulted in ...

journal_title：Molecular pharmacology

authors： Akiyoshi J,Hough C,Chuang DM

更新日期：1993-03-01 00:00:00

abstract：:Studies of the biochemical mechanisms evoked by conventional treatments for neoplastic diseases point to apoptosis as a key process for elimination of unwanted cells. Although the pathways through which chemotherapeutics promote cell death remain largely unknown, caspase proteases play a central role in the induction ...

journal_title：Molecular pharmacology

authors： Benjamin CW,Hiebsch RR,Jones DA

更新日期：1998-03-01 00:00:00

abstract：:The peroxisome proliferator-activated receptors (PPARs) represent pharmacological target molecules to improve insulin resistance in type 2 diabetes mellitus. Here we assessed a functional connection between pharmacological activation of PPAR and vascular endothelial growth factor (VEGF) expression in keratinocytes and...

journal_title：Molecular pharmacology

authors： Schiefelbein D,Seitz O,Goren I,Dissmann JP,Schmidt H,Bachmann M,Sader R,Geisslinger G,Pfeilschifter J,Frank S

更新日期：2008-10-01 00:00:00

abstract：:In the present study we have investigated the capacity of various compounds sterically related to indolo[3,2-b]carbazole to inhibit specific 2,3,7,8-tetrachloro[1,6-3H]dibenzo-p-dioxin binding in rat liver cytosol, as analyzed by electrofocusing in polyacrylamide gels. When the two nitrogen atoms of indolo[3,2-b]carba...

journal_title：Molecular pharmacology

authors： Gillner M,Bergman J,Cambillau C,Alexandersson M,Fernström B,Gustafsson JA

更新日期：1993-08-01 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 levels of hepatic mRNAs for several enzymes involved in drug metabolism were measured following administration to rats of either phenobarbitone or 2-allyl-2-isopropylacetamide. There was a substantial elevation in the mRNA levels for cytochromes P450 IIB1, IIB2, and IIIA1, epoxide hydrolase, glutathione-S-transfer...

journal_title：Molecular pharmacology

authors： Srivastava G,Hansen AJ,Bawden MJ,May BK

更新日期：1990-10-01 00:00:00

abstract：:Benzamide riboside (BR) and tiazofurin (TR) are converted to analogs of NAD that inhibit IMP dehydrogenase (IMPDH), resulting in cellular depletion of GTP and dGTP and inhibition of proliferation. The current work was undertaken to identify the human nucleoside transporters involved in cellular uptake of BR and TR and...

journal_title：Molecular pharmacology

authors： Damaraju VL,Visser F,Zhang J,Mowles D,Ng AM,Young JD,Jayaram HN,Cass CE

更新日期：2005-01-01 00:00:00