Abstract:
:The possibility that the mechanism of lead neurotoxicity may be at the level of transcription was investigated in PC12 cells. In electrophoretic mobility gel shift assays Pb2+ was found to increase activator protein-1 complex (AP-1) DNA binding activity in PC12 cells; the increase was time- and concentration-dependent. Exposure to Pb2+ also resulted in an increase in AP-1-driven transcription in cerebellar granule cells transfected with a luciferase gene reporter construct. The increase in AP-1 DNA binding activity by Pb2+ required protein synthesis. The increase was mediated by protein kinase C because depletion of protein kinase C and an inhibitor of protein kinase C prevented the increase in AP-1 DNA binding activity by Pb2+. Fra-2 and JunD were found in supershift assays to be the major components of the AP-1 that was increased by Pb2+. In summary, our studies indicate that Pb2+ increases AP-1 DNA binding activity in PC12 cells by a pathway that requires protein kinase C and new protein synthesis.
journal_name
J Neurochemjournal_title
Journal of neurochemistryauthors
Chakraborti T,Kim KA,Goldstein GG,Bressler JPdoi
10.1046/j.1471-4159.1999.0730187.xkeywords:
subject
Has Abstractpub_date
1999-07-01 00:00:00pages
187-94issue
1eissn
0022-3042issn
1471-4159journal_volume
73pub_type
杂志文章abstract::To evaluate the role of various growth factors in naturally occurring cell death during development of the neural retina, we examined the effects of such factors on the nuclear morphology and the size of DNA in cultured chick embryonic neural retina cells. Basic fibroblast growth factor (bFGF) increased internucleosom...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1997.68052212.x
更新日期:1997-05-01 00:00:00
abstract::The changes of glutathione S-transferase activity were investigated using rat brain astroglioma C6 cells that were synchronized at different phases of the cell cycle. The enzyme showed two significant activity peaks at G2 and G1 phases. Furthermore, when C6 glioma cells were exposed to a culture medium supplemented wi...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1988.tb13244.x
更新日期:1988-01-01 00:00:00
abstract::Neurons from the granular layer of the cerebellum express functional beta 2-adrenoreceptors (beta 2-ARs). We show that stimulation of beta 2-ARs with isoprenaline increases cyclic AMP (cAMP) production and stimulates transcription of genes containing the cAMP-responsive element (CRE; TGACGTCA). This effect is mediated...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1995.64010041.x
更新日期:1995-01-01 00:00:00
abstract::The binding characteristics of [3H] alpha-dihydropicrotoxinin to the picrotoxinin binding site were investigated in membrane preparations of adult rat forebrain and living cultures of rat cerebral cortex. The binding of [3H]alpha-dihydropicrotoxinin to rat forebrain was decreased by lysing, treating with Triton X-100,...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1985.tb12888.x
更新日期:1985-03-01 00:00:00
abstract::Over 25 years ago it was first reported that intracellular chloride levels (Cl-in ) were higher in developing neurons than in maturity. This finding has had significant implications for understanding the excitability of developing networks and recognizing the underlying causes of hyperexcitability associated with dise...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.13936
更新日期:2017-03-01 00:00:00
abstract::Tan-67 is a selective non-peptidic δ-opioid receptor (DOR) agonist that confers neuroprotection against cerebral ischemia/reperfusion (I/R)-caused neuronal injury in pre-treated animals. In this study, we examined whether post-ischemic administration of Tan-67 in stroke mice is also neuroprotective and whether the tre...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.14265
更新日期:2018-02-01 00:00:00
abstract::To determine the role of reduced dopaminergic transmission for declines of forced versus spontaneous behavior, we used a model of Parkinson's disease with progressive degeneration of dopamine (DA) neurons, the MitoPark mouse. Mice were subjected to rotarod tests of motor coordination, and open field and cylinder tests...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.14702
更新日期:2019-07-01 00:00:00
abstract::The effect of cerebral hypoxia-ischemia (HI) on levels and tyrosine phosphorylation of the NMDA receptor was examined in 7- (P7) and 21 (P21)-day-old rats. Unilateral HI was administered by ligation of the right common carotid artery and exposure to an atmosphere of 8% O2/92% N2 for 2 (P7) or 1.5 (P21) h. This duratio...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2002.01026.x
更新日期:2002-08-01 00:00:00
abstract::The histamine H1 receptor binding capacity of the amygdalas of amygdaloid kindled rats was studied. In the kindled nonstimulated amygdala, significant decreases in K(D) and B(max) values compared with those of control amygdala were found 1 week after the last kindled seizure. One month after the last kindled seizure, ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1999.0722177.x
更新日期:1999-05-01 00:00:00
abstract::Tissue plasminogen activator (tPA) is necessary for hippocampal long-term potentiation. Synaptically released zinc also contributes to long-term potentiation, especially in the hippocampal CA3 region. Using cortical cultures, we examined whether zinc increased the concentration and/or activity of tPA. Two hours after ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2011.07322.x
更新日期:2011-09-01 00:00:00
abstract::Published evidence has linked glutamate with the pathogenesis of Alzheimer's disease (AD) and the up-regulation of a variety of chemokines, including monocyte chemotactic protein-1 (MCP-1)/chemokine ligand 2, with AD-associated pathological changes. In this study, we assessed the potential molecular basis for the role...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2009.06564.x
更新日期:2010-03-01 00:00:00
abstract::Somatodendritic voltage-dependent K(+) currents (Kv4.2) channels mediate transient A-type K(+) currents and play critical roles in controlling neuronal excitability. Accumulating evidence has indicated that Kv4.2 channels are key regulatory components of the signaling pathways that lead to synaptic plasticity. In cont...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2008.05356.x
更新日期:2008-07-01 00:00:00
abstract::Leucine and beta-(+/-)-2-aminobicyclo[2.2.1]heptane-2-carboxylic acid (BCH) stimulated, in a dose-dependent manner, reductive amination of 2-oxoglutarate in rat brain synaptosomes treated with Triton X-100. The concentration dependence curves were sigmoid, with 10-15-fold stimulations at 15 mM leucine (or BCH); oxidat...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1990.tb01967.x
更新日期:1990-04-01 00:00:00
abstract::The effect of nociceptin (an endogenous ligand of the ORL1 receptor) on mesolimbic dopamine release and simultaneous horizontal locomotion was studied in freely moving mice undergoing microdialysis of the nucleus accumbens. Intracerebroventricular (i.c.v.) administration of nociceptin (7 nmol) induced a long-lasting s...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2003.02322.x
更新日期:2004-04-01 00:00:00
abstract::The effect of Gi/o protein-coupled receptors on adenylyl cyclase type 2 (AC2) has been studied in Sf9 insect cells. Stimulation of cells expressing AC2 with the phorbol ester 12-O-tetradecanoyl phorbol-13-acetate (TPA) led to a twofold stimulation of cAMP synthesis that could be blocked with the protein kinase C inhib...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2002.01270.x
更新日期:2002-12-01 00:00:00
abstract::Two monoclonal antibodies that recognize Alzheimer's neurofibrillary tangles (ANTs), AD10 and AB18, have been characterized by immunoblotting against human and calf spinal cord neurofilament (NF) and calf brain microtubule preparations. Both antibodies bind to the 200-kilodalton (kd) (NF-H) and 160-kd (NF-M) but not t...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1987.tb04114.x
更新日期:1987-02-01 00:00:00
abstract::This study presents the initial characterization of transgenic mice with mutations in a primary zinc-binding residue (H80), either alone or with a G93A mutation. H80G;G93A superoxide dismutase 1 (SOD1) transgenic mice developed paralysis with motor neuron loss, and ubiquitin inclusion-type rather than mitochondrial va...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2011.07360.x
更新日期:2011-09-01 00:00:00
abstract::A previous report has described the presence of t-[35S]-butylbicyclophosphorothionate binding sites and GABA-gated Cl- flux in the human neuroblastoma IMR-32 cell line. We now report the further characterisation of this binding site and, even more important, the identification of the GABAA receptor alpha 3 sub-unit ex...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1993.tb02182.x
更新日期:1993-08-01 00:00:00
abstract::Several neurodegenerative disorders are associated with evidence of inflammation, one feature of which is increased activation of microglia, the most likely cellular source of inflammatory cytokines like interleukin-1beta. It is now recognized that interaction of microglia with other cells contributes to maintenance o...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2009.06253.x
更新日期:2009-09-01 00:00:00
abstract::In the early postnatal period, energy metabolism in the suckling rodent brain relies to a large extent on metabolic pathways alternate to glucose such as the utilization of ketone bodies (KBs). However, how KBs affect neuronal excitability is not known. Using recordings of single NMDA and GABA-activated channels in ne...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2009.06230.x
更新日期:2009-08-01 00:00:00
abstract::Brain edema in hepatic encephalopathy has been associated with circulating ammonia that is metabolized to glutamine. We measured alterations in blood chemistry and brain regional specific gravity and ion and amino acid contents in models of simple hyperammonemia and liver failure induced by daily administrations of am...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1994.62010197.x
更新日期:1994-01-01 00:00:00
abstract::The olfactory bulb is one of the most vulnerable brain regions in age-related proteinopathies. Proteinopathic stress is mitigated by the heat shock protein (Hsp) family of chaperones. Here, we describe age-related decreases in Hsc70 in the olfactory bulb of the female rat and higher levels of Hsp70 and Hsp25 in middle...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.13041
更新日期:2015-06-01 00:00:00
abstract::In vivo microdialysis was used to determine whether the 3,4-methylenedioxymethamphetamine (MDMA)-induced release of serotonin (5-HT) in vivo involves a carrier-mediated process and to investigate further the state-dependent interaction between 5-HT and dopamine. MDMA produced a dose-dependent increase in the extracell...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1996.66010243.x
更新日期:1996-01-01 00:00:00
abstract::Several Good buffers (MOPS, ACES, BES, HEPES, ADA, and PIPES) competitively inhibited both high-affinity and low-affinity [3H]gamma-aminobutyric acid receptor binding to rat brain synaptic membranes. The most potent inhibitor was MOPS, which had Ki values of 180 nM and 79 nM for the high- and low-affinity binding site...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1981.tb01708.x
更新日期:1981-03-01 00:00:00
abstract::Presynaptic nicotinic acetylcholine receptors on striatal nerve terminals modulate the release of dopamine. We have compared the effects of a number of nicotinic agonists and antagonists on a perfused synaptosome preparation preloaded with [3H]dopamine. (-)-Nicotine, acetylcholine, and the nicotinic agonists cytisine ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1990.tb02341.x
更新日期:1990-03-01 00:00:00
abstract::Binding of DL-alpha-[3H]amino-3-hydroxy-5-methyl-isoxazole-4-propionic acid ([3H]AMPA) to lysed rat brain membranes in the presence of potassium thiocyanate resulted in curvilinear Scatchard plots that could be resolved by regression analysis into a large low-affinity component and a small high-affinity component. Sol...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1992.tb10086.x
更新日期:1992-12-01 00:00:00
abstract::Although palmitoylation of the beta(2)-adrenergic receptor (beta(2)AR), as well as its phosphorylation by the cyclic AMP-dependant protein kinase (PKA) and the beta-adrenergic receptor kinase (beta ARK), are known to play important roles in agonist-promoted desensitization, their relative contribution and mutual regul...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2001.00005.x
更新日期:2001-01-01 00:00:00
abstract::Transcriptional responses to growth factor and G protein-coupled receptors were compared in PC12 cells using retroviral luciferase reporters. In cells stably expressing alpha(1A)-adrenergic receptors, norepinephrine activated all five reporters [AP1 (activator protein-1), SRE (serum response element), CRE (cyclic AMP ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2000.0742392.x
更新日期:2000-06-01 00:00:00
abstract::The zebrafish, long recognized as a model organism for the analysis of basic developmental processes, is now also emerging as an alternative animal model for human diseases. This review will first provide an overview of the particular characteristics of zebrafish in general and their dopaminergic nervous system in par...
journal_title:Journal of neurochemistry
pub_type: 杂志文章,评审
doi:10.1111/j.1471-4159.2008.05463.x
更新日期:2008-09-01 00:00:00
abstract::Leptin, the obese gene product, was reported to stimulate prolactin (PRL) secretion, but the neuroendocrine mechanism underlying this hormonal response is largely unknown. Thus, in this study we examined the involvement of several important PRL regulators in the leptin-induced PRL secretion in male rats. Compared with...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2003.01683.x
更新日期:2003-04-01 00:00:00