Disposition of homocysteine and S-3-deazaadenosylhomocysteine in cells exposed to 3-deazaadenosine.

abstract：:Wild-type p53 is frequently mutated in late-stage ovarian cancer and has been proposed as a determinant of cisplatin chemosensitivity. We have therefore established a human ovarian cancer cell line differing only in p53 status and characterized its response after treatment with different platinum complexes. The wild-t...

journal_title：Molecular pharmacology

authors： Pestell KE,Hobbs SM,Titley JC,Kelland LR,Walton MI

更新日期：2000-03-01 00:00:00

abstract：:Cadmium is a dangerous metal distributed widely in the environment. Members of our laboratory recently identified the ZIP8 transporter protein, encoded by the mouse Slc39a8 gene, to be responsible for genetic differences in response to cadmium damage of the testis. Stable retroviral infection of the ZIP8 cDNA in mouse...

journal_title：Molecular pharmacology

authors： He L,Girijashanker K,Dalton TP,Reed J,Li H,Soleimani M,Nebert DW

更新日期：2006-07-01 00:00:00

abstract：:P-glycoprotein, an ATP-driven efflux pump, regulates permeability of the blood-brain barrier (BBB). Sphingolipids, endogenous to brain tissue, influence inflammatory responses and cell survival in vitro. Our laboratory has previously shown that sphingolipid signaling by sphingosine 1-phosphate decreases basal P-glycop...

journal_title：Molecular pharmacology

authors： Mesev EV,Miller DS,Cannon RE

更新日期：2017-04-01 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：:Aldose reductase (AKR1B1) is a critical drug target because of its involvement in diabetic complications, inflammation, and tumorigenesis. However, to date, development of clinically useful inhibitors has been largely unsuccessful. Cyclopentenone prostaglandins (cyPGs) are reactive lipid mediators that bind covalently...

journal_title：Molecular pharmacology

authors： Díez-Dacal B,Sánchez-Gómez FJ,Sánchez-Murcia PA,Milackova I,Zimmerman T,Ballekova J,García-Martín E,Agúndez JA,Gharbi S,Gago F,Stefek M,Pérez-Sala D

更新日期：2016-01-01 00:00:00

abstract：:Two newly identified, overlapping (1 bp) glucocorticoid response elements (GREs) at -759 and -773 bp in the promoter of the rat phenylethanolamine N-methyltransferase (PNMT; EC 2.1.1.28) gene are primarily responsible for its glucocorticoid sensitivity, rather than the originally identified -533-bp GRE. A dose-depende...

journal_title：Molecular pharmacology

authors： Tai TC,Claycomb R,Her S,Bloom AK,Wong DL

更新日期：2002-06-01 00:00:00

abstract：:Arrestins mediate G protein-coupled receptor desensitization, internalization, and signaling. Dopamine D(2) and D(3) receptors have similar structures but distinct characteristics of interaction with arrestins. The goals of this study were to compare arrestin-binding determinants in D(2) and D(3) receptors other than ...

journal_title：Molecular pharmacology

authors： Lan H,Liu Y,Bell MI,Gurevich VV,Neve KA

更新日期：2009-01-01 00:00:00

abstract：:A method was developed to measure the formation of glutathione adducts of 1-chloro-2,4-dinitrobenzene (CDNB) and 2,4-dichloro-1-nitrobenzene (DCNB) in periportal and pericentral regions of the liver lobule in the isolated perfused rat liver by surface reflectance spectrophotometry. Conjugates of DCNB and CDNB are rele...

journal_title：Molecular pharmacology

authors： Harris C,Thurman RG

更新日期：1986-01-01 00:00:00

abstract：:G protein-coupled receptors are sensors that interact with a large variety of elements, including photons, ions, and large proteins. Not surprisingly, these receptors participate in the numerous normal physiologic processes that we refer to as health and in its perturbations that constitute disease. It has been estima...

journal_title：Molecular pharmacology

authors： Pupo AS,García-Sáinz JA

更新日期：2016-11-01 00:00:00

abstract：:Lead (Pb(2+)) is a well-known inhibitor of voltage-dependent Ca(2+) channels in their native environments in several types of cells. However, its effects on discrete Ca(2+) channel phenotypes in isolation have not been well studied. We compared how specific subtypes of human neuronal high-voltage-activated Ca(2+) chan...

journal_title：Molecular pharmacology

authors： Peng S,Hajela RK,Atchison WD

更新日期：2002-12-01 00:00:00

abstract：:It has been demonstrated previously that cannabinol (CBN) differentially modulates interleukin-2 (IL-2) protein secretion by T cells with a corresponding change in extracellular signal-regulated kinase activity. The objective of the present studies was to further investigate the molecular mechanism by which CBN enhanc...

journal_title：Molecular pharmacology

authors： Jan TR,Rao GK,Kaminski NE

更新日期：2002-02-01 00:00:00

abstract：:The anti-human immunodeficiency virus (-HIV) nucleoside analogs azidothymidine (AZT), dideoxycytidine (ddC), dideoxyinosine (ddl), dideoxydidehydrothymidine (D4T), and dideoxydidehydrocytidine (D4C) and the anticancer drug cytosine arabinoside (AraC) were compared for their effects on the mitochondrial DNA (mtDNA) con...

journal_title：Molecular pharmacology

authors： Chen CH,Vazquez-Padua M,Cheng YC

更新日期：1991-05-01 00:00:00

abstract：:We examined the effects on allosteric modulation and ligand binding of the mutation of amino acid residues of the human A(3) adenosine receptor (A(3)AR) that are hypothesized to be near one of three loci: the putative sodium binding site, the putative ligand binding site, and the DRY motif in transmembrane helical dom...

journal_title：Molecular pharmacology

authors： Gao ZG,Kim SK,Gross AS,Chen A,Blaustein JB,Jacobson KA

更新日期：2003-05-01 00:00:00

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

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

更新日期：2020-12-01 00:00:00

abstract：:The involvement of mitogen-activated protein (MAP) kinases in the mitogenic effect of thyrotropin (TSH) is not fully elucidated. In FRTL-5 cells, we found that the MAP kinase kinase (MEK) inhibitors UO126 and PD98059 substantially decreased TSH-induced DNA synthesis, indicating that MAP kinases are involved in the TSH...

journal_title：Molecular pharmacology

authors： Iacovelli L,Capobianco L,Salvatore L,Sallese M,D'Ancona GM,De Blasi A

更新日期：2001-11-01 00:00:00

abstract：:The compound 4-(5-(4-bromophenyl)-3-(6-methyl-2-oxo-4-phenyl-1,2-dihydroquinolin-3-yl)-4,5-dihydro-1H-pyrazol-1-yl)-4-oxobutanoic acid (DQP-1105) is a representative member of a new class of N-methyl-d-aspartate (NMDA) receptor antagonists. DQP-1105 inhibited GluN2C- and GluN2D-containing receptors with IC(50) values ...

journal_title：Molecular pharmacology

authors： Acker TM,Yuan H,Hansen KB,Vance KM,Ogden KK,Jensen HS,Burger PB,Mullasseril P,Snyder JP,Liotta DC,Traynelis SF

更新日期：2011-11-01 00:00:00

abstract：:We demonstrated previously that the nucleoside of fludarabine (F-ara-A), a clinically effective agent against chronic lymphocytic leukemia and low-grade lymphoma, produces synergistic cytotoxicity against cisplatin-resistant CP2.0 human colon tumor cells when administered in combination with cisplatin. The purpose of ...

journal_title：Molecular pharmacology

authors： Li L,Keating MJ,Plunkett W,Yang LY

更新日期：1997-11-01 00:00:00

abstract：:Previously, we reported the presence of dual promoters, referred to as distal (DP) and proximal, with a negative regulatory element between them in the mouse mu-opioid receptor (mor) gene. Here we have identified a positive regulatory element influencing mor DP transcription, which contains multiple consensus binding ...

journal_title：Molecular pharmacology

authors： Im HJ,Smirnov D,Yuhi T,Raghavan S,Olsson JE,Muscat GE,Koopman P,Loh HH

更新日期：2001-06-01 00:00:00

abstract：:Polyamides are a class of synthetic molecules that exhibit high-affinity, sequence-specific reversible binding in the DNA minor groove but are incapable of inducing DNA damage. In cell-free systems, polyamides have been shown to regulate gene expression by activation, repression, and antirepression. However, effective...

journal_title：Molecular pharmacology

authors： Philips BJ,Chang AY,Dervan PB,Beerman TA

更新日期：2005-03-01 00:00:00

abstract：:Dantrolene was recently identified as a novel inhibitor of the plasmodial surface anion channel (PSAC), an unusual ion channel on Plasmodium falciparum-infected human red blood cells. Because dantrolene is used clinically, has a high therapeutic index, and has desirable chemical synthetic properties, it may be a lead ...

journal_title：Molecular pharmacology

authors： Kang M,Lisk G,Hollingworth S,Baylor SM,Desai SA

更新日期：2005-07-01 00:00:00

abstract：:Aflatrem, a mycotoxin from Aspergillus flavus, potentiates the gamma-aminobutyric acid (GABA)-induced chloride current. This positive allosteric regulatory action of aflatrem was quantitatively studied on the GABAA receptor channel expressed in Xenopus oocytes after injection with chick brain mRNA under voltage-clamp ...

journal_title：Molecular pharmacology

authors： Yao Y,Peter AB,Baur R,Sigel E

更新日期：1989-03-01 00:00:00

abstract：:To understand the molecular mechanism by which the angiotensin II (AII) type 1 receptor (AT1 receptor) transduces its biological signal, we examined the role of various signaling molecules involved in AT1 receptor signaling in Chinese hamster ovary cells stably transfected with the AT1 receptor. AT1 receptor-transfect...

journal_title：Molecular pharmacology

authors： Arai H,Escobedo JA

更新日期：1996-09-01 00:00:00

abstract：:Chick brain mRNA was isolated and injected into Xenopus oocytes. This led to the expression of gamma-aminobutyrate (GABA) channels easily accessible for current measurements using the voltage clamp technique. The effect of the anthelmintic natural product avermectin B1a on the GABA current was studied quantitatively. ...

journal_title：Molecular pharmacology

authors： Sigel E,Baur R

更新日期：1987-12-01 00:00:00

abstract：:Novel methods of detecting and quantitating cooperative interactions between an agent and both a tritiated (muscarinic) antagonist and the endogenous agonist (acetylcholine), acting at a common (muscarinic) receptor, have been devised. In a semiquantitative protocol, binding data are transformed into affinity ratios (...

journal_title：Molecular pharmacology

authors： Lazareno S,Birdsall NJ

更新日期：1995-08-01 00:00:00

abstract：:The spatiotemporal dynamics of opioid signaling in the brain remain poorly defined. Photoactivatable opioid ligands provide a means to quantitatively measure these dynamics and their underlying mechanisms in brain tissue. Although activation kinetics can be assessed using caged agonists, deactivation kinetics are obsc...

journal_title：Molecular pharmacology

authors： Banghart MR,Williams JT,Shah RC,Lavis LD,Sabatini BL

更新日期：2013-11-01 00:00:00

abstract：:Previous studies have shown that neural stimulation of brown adipose tissue (BAT) reorganizes the expression and activity of signaling proteins in the beta-adrenergic adenylyl cyclase pathway. Cold stress increases neural stimulation of BAT and increases alpha1-adrenergic receptor number; however, the alpha1 receptor ...

journal_title：Molecular pharmacology

authors： Granneman JG,Zhai Y,Lahners KN

更新日期：1997-04-01 00:00:00

abstract：:Thiopurine methyltransferase (TPMT) catalyzes the S-methylation of thiopurine drugs such as 6-mercaptopurine. Levels of TPMT activity in human tissue are controlled by a common genetic polymorphism that is an important factor responsible for individual variation in thiopurine drug toxicity and therapeutic efficacy. Ou...

journal_title：Molecular pharmacology

authors： Honchel R,Aksoy IA,Szumlanski C,Wood TC,Otterness DM,Wieben ED,Weinshilboum RM

更新日期：1993-06-01 00:00:00

abstract：:In PC12 cells stably expressing alpha(1A)-adrenergic receptors (ARs), norepinephrine (NE) activates several mitogen-activated protein kinase pathways and causes differentiation (). Using retroviral luciferase reporters, we found that NE also activated both signal transducers and activators of transcription (Stat) and ...

journal_title：Molecular pharmacology

authors： Zhong H,Murphy TJ,Minneman KP

更新日期：2000-05-01 00:00:00

abstract：:Valproic acid (VPA) is a widely used antiepileptic agent that is undergoing clinical evaluation for anticancer therapy. We assessed the effects of VPA on angiogenesis in vitro and in vivo. In human umbilical vein endothelial cells, therapeutically relevant concentrations of VPA (0.25 to 1 mM) inhibited proliferation, ...

journal_title：Molecular pharmacology

authors： Michaelis M,Michaelis UR,Fleming I,Suhan T,Cinatl J,Blaheta RA,Hoffmann K,Kotchetkov R,Busse R,Nau H,Cinatl J Jr

更新日期：2004-03-01 00:00:00

abstract：:Noscapine, a microtubule-interfering agent, has been shown to arrest mitosis, to induce apoptosis, and to have potent antitumor activity. We report herein that two brominated derivatives of noscapine, 5-bromonoscapine (5-Br-nosc) and reduced 5-bromonoscapine (Rd 5-Br-nosc), have higher tubulin binding activity than no...

journal_title：Molecular pharmacology

authors： Zhou J,Gupta K,Aggarwal S,Aneja R,Chandra R,Panda D,Joshi HC

更新日期：2003-04-01 00:00:00