Abstract：
:Nucleocytoplasmic transport is a crucial process for cell function. We assessed the general effect of chronic alcohol exposure on this transport in growing astrocytes for the first time. Import and export of proteins to the nucleus were examined by pulse-chase experiments using (3)H-methionine, and we showed that ethanol induces a delay in both processes. Furthermore, we took an approach to evaluate the mechanisms involved in this effect. Whereas alcohol did not affect the amount and the distribution of several representative proteins that participate in nuclear import, such as RanBP1, RanGAP1 and the importins alpha2 and beta3, it decreased the amount of Exp1/CRM1, which is a general export receptor involved in the nuclear export. In addition, the density and distribution of nuclear pore complexes, which contribute to nucleocytoplasmic transport, were also affected by ethanol. These effects can be related with changes found in the content of several proteins associated with the nuclear envelope and the nuclear pore complex structure such as lamins A/C, and nucleoporins p62 and RanBP2, respectively. These results suggest that ethanol could interfere with some of the important processes regulated by nucleocytoplasmic transport in astrocytes and support the idea that one of the main ethanol targets is intracellular transport.
journal_name
J Neurochemjournal_title
Journal of neurochemistryauthors
Marín MP,Tomas M,Esteban-Pretel G,Megías L,López-Iglesias C,Egea G,Renau-Piqueras Jdoi
10.1111/j.1471-4159.2008.05514.xsubject
Has Abstractpub_date
2008-08-01 00:00:00pages
1914-28issue
4eissn
0022-3042issn
1471-4159pii
JNC5514journal_volume
106pub_type
杂志文章abstract：:Biomarkers in CSF can offer improved diagnostic accuracy for Alzheimer's disease (AD). The present study investigated whether the glycoprotein and putative tumor suppressor Dickkopf homolog 3 (Dkk-3) is secreted into CSF and evaluated its applicability as a diagnostic marker for AD. Using our highly specific immunoenz...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2009.06158.x
更新日期：2009-07-01 00:00:00
abstract：:The release of gamma-aminobutyric acid (GABA) was studied in slices of the head of the rabbit caudate nucleus. The slices were preincubated with [3H]GABA and then superfused. Aminooxyacetic acid was present throughout. Both the tritium in the slices and that in the superfusate consisted practically entirely of [3H]GAB...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1986.tb00624.x
更新日期：1986-04-01 00:00:00
abstract：:Astrocytes remove glutamate from the synaptic cleft via specific transporters, and impaired glutamate reuptake may promote excitotoxic neuronal injury. In a model of viral encephalomyelitis caused by neuroadapted Sindbis virus (NSV), mice develop acute paralysis and spinal motor neuron degeneration inhibited by the AM...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2008.05230.x
更新日期：2008-05-01 00:00:00
abstract：:Three serine residues (Ser193, Ser194, Ser197) in the fifth transmembrane-spanning region of the D2 dopamine receptor have been mutated separately to alanine and the effects of the mutations determined in ligand-binding experiments with [3H] spiperone. For many antagonists the mutations had little effect, showing that...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1996.66010394.x
更新日期：1996-01-01 00:00:00
abstract：:Purified tribulin, an endogenous monoamine oxidase (MAO) inhibitor, has been identified by direct probe insertion mass spectrometry as the indole-2,3-dione, isatin. A gas chromatographic-mass spectrometric assay for isatin has been developed and used to measure its relatively high concentrations in unpurified human ur...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1988.tb01089.x
更新日期：1988-08-01 00:00:00
abstract：:Lysophospholipids are generated during the turnover and breakdown of membrane phospholipids. We have identified and partially characterized three enzymes involved in the metabolism of lysophospholipids in human brain, namely, lysophospholipase, lysophospholipid:acyl-CoA acyltransferase (acyltransferase), and lysophosp...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1994.63051839.x
更新日期：1994-11-01 00:00:00
abstract：:Previous studies have indicated that the brains of DBA/2J (D2) mice have a more heavily myelinated CNS than those of C57BL/6J (B6) at postnatal days 17-21. However, the amount of myelin in the brains of F1 (B6 X D2) hybrids is even higher than in their parental strains. To investigate further factors involved in regul...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1987.tb09995.x
更新日期：1987-10-01 00:00:00
abstract：:Mechanical transection of the nigrostriatal dopamine pathway at the medial forebrain bundle (MFB) results in the delayed degeneration of dopaminergic neurons in the substantia nigra pars compacta (SNpc). We have previously demonstrated that c-Jun activation is an obligate component of neuronal death in this model. Her...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2005.03568.x
更新日期：2006-01-01 00:00:00
abstract：:Microglial activation by blood-borne factors following blood-brain barrier damage may play a significant role in subsequent neuropathogenesis of several neurodegenerative diseases. Exposure of primary cultured rat brain microglia to pure, fatty acid- and lipid-deficient rat serum albumin or fraction V, (fatty acid and...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2009.05953.x
更新日期：2009-05-01 00:00:00
abstract：:To assess the importance of the cysteine residues Cys347 and Cys351 in the carboxylic tail in the human D1 dopamine receptor, seven mutant receptors were constructed by PCR. The pharmacological and functional properties of the wild-type and mutant receptors were assessed following transient expression in COS-7 cells. ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1995.65031325.x
更新日期：1995-09-01 00:00:00
abstract：:For more than three decades, the venom of the black widow spider and its principal active components, latrotoxins, have been used to induce release of neurotransmitters and hormones and to study the mechanisms of exocytosis. Given the complex nature of alpha--latrotoxin (alpha-LTX) actions, this research has been cont...
journal_title：Journal of neurochemistry
pub_type： 杂志文章,评审
doi：10.1111/j.1471-4159.2009.06329.x
更新日期：2009-10-01 00:00:00
abstract：:Antibodies raised against the synthetic peptide NH2-QKSDDDYEDYASNKTC-COOH (gamma 2 1-15 Cys), which corresponds to the N-terminal amino acid sequence with a C-terminal cysteine of the human gamma 2 subunit of the gamma-aminobutyric acidA (GABAA) receptor, were used to study the quantitative immunoprecipitation of agon...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1992.tb09278.x
更新日期：1992-01-01 00:00:00
abstract：:Glycine residues can introduce flexibility in proteins, give rise to turns and breaks in secondary structure and are key components of some nucleotide binding motifs. In the P2X receptor extracellular ATP binding domain, 11 glycine residues are completely conserved and an additional five are conserved in at least five...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2005.03494.x
更新日期：2005-12-01 00:00:00
abstract：:Despite the increasing knowledge of Alzheimer's disease (AD) management with novel pharmacologic agents, most of them are only transiently fixing symptomatic pathology. Currently there is rapid growth in the field of neuroprotective pharmacology and increasing focus on the involvement of mitochondria in this devastati...
journal_title：Journal of neurochemistry
pub_type： 杂志文章,评审
doi：10.1111/j.1471-4159.2010.06814.x
更新日期：2010-08-01 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：:Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease characterized by loss of motor function and eventual death as a result of degeneration of motor neurons in the spinal cord and brain. The discovery of mutations in SOD1, the gene encoding the antioxidant enzyme Cu/Zn-superoxide dismutase (C...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.2002.00812.x
更新日期：2002-04-01 00:00:00
abstract：:3,4-Dihydroxyphenylethylamine (dopamine) D2 receptor agonists, including BHT 920 and bromocriptine, and the potassium channel opener minoxidil share the property of hyperpolarizing the plasma membrane by activating voltage-dependent potassium channels. These drugs were tested for their ability to inhibit the cyclic AM...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1992.tb11016.x
更新日期：1992-11-01 00:00:00
abstract：:The aim of the present study was to gain a deeper insight into the cell signaling pathways involved in the neuroprotection/neurorescue activity of the major green tea polyphenol (-)-epigallocatechin-3-gallate (EGCG). EGCG (1 micro m) caused an immediate (30 min) down-regulation (approximately 40%) of Bad protein level...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2006.04265.x
更新日期：2007-02-01 00:00:00
abstract：:Choline acetyltransferase (ChAT) catalyzes the reaction between choline and acetylcoenzyme A (AcCoA) to form acetylcholine (ACh) in nerve terminals. ACh metabolism has implications in numerous aspects of physiology and varied disease states, such as Alzheimer's disease. Therefore a specific, sensitive, and reliable me...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2012.07793.x
更新日期：2012-08-01 00:00:00
abstract：:In rat mesencephalic cell cultures, L-glutamate at concentrations ranging from 100 microM to 1 mM stimulated release of [3H]dopamine that was attenuated by the non-N-methyl-D-aspartate (non-NMDA) receptor antagonist 6,7-dinitroquinoxalinedione, but not by the selective NMDA receptor antagonists (+)-5-methyl-10,11-dihy...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1990.tb08848.x
更新日期：1990-07-01 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：:Ketimine reductase (E.C. 1.5.1.25) was purified to apparent homogeneity from lamb forebrain by means of a rapid multi-step chromatography protocol. The purified enzyme was identified by MS/MS (mass spectrometry) as μ-crystallin. The identity was confirmed by heterologously expressing human μ-crystallin in Escherichia ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2011.07220.x
更新日期：2011-08-01 00:00:00
abstract：:CNS synapses are produced rapidly upon pre- and post-synaptic recruitment. However, their composition is known to change during development and we reasoned that this may be reflected in the gross biochemical properties of synapses. We found synaptic structure in adult cortical synaptosomes to be resistant to digestion...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2006.03898.x
更新日期：2006-07-01 00:00:00
abstract：:Three different transcripts of the homeodomain gene termed pituitary homeobox (Ptx) 2 (Pitx2/Brx/Rieg/Solurshin/Arp) were cloned from different species encoding proteins belonging to the paired-like family of homeodomain proteins. Ptx2a (324 amino acids), Ptx2b (271 amino acids), and Ptx2c (318 amino acids) share the ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.2000.0751818.x
更新日期：2000-11-01 00:00:00
abstract：:Developmental changes of preprocholecystokinin mRNA (CCK mRNA) and cholecystokinin-like immunoreactivity (CCK-LI) were examined in rat brain regions (frontal cortex, colliculi, hippocampus, striatum, and cerebellum) using RNA dot blot assays with cholecystokinin (CCK) cDNA and radioimmunoassay, respectively. The CCK-L...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1989.tb11772.x
更新日期：1989-09-01 00:00:00
abstract：:We have investigated the effects of fetal hypophysectomy (HX) with or without thyroxine (T4)replacement on the plasma concentrations of free methionine-enkephalin (free Met-Enk), noradrenaline, and adrenaline in late gestation sheep fetus. Plasma adrenaline concentrations were significantly higher in intact fetal shee...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1994.63041386.x
更新日期：1994-10-01 00:00:00
abstract：:Autophosphorylation of Ca2+/calmodulin-dependent protein kinase II (CaMKII) at Thr286 generates Ca2+-independent activity. As an initial step toward understanding CaMKII inactivation, protein phosphatase classes (PP1, PP2A, PP2B, or PP2C) responsible for dephosphorylation of Thr286 in rat forebrain subcellular fractio...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1997.68052119.x
更新日期：1997-05-01 00:00:00
abstract：:High-affinity binding sites for [3H]PK 11195 and [3H]Ro 5-4864 with the properties of the peripheral-type benzodiazepine receptor were detected in primary cultures of both mouse neocortical and cerebellar astrocytes. The binding sites were enriched in mitochondrial fractions on differential centrifugation. An 18-kDa p...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1994.62020673.x
更新日期：1994-02-01 00:00:00
abstract：:Presynaptic modulation of synaptic transmission is the primary function of central nicotinic acetylcholine receptors (nAChRs) in developing and adult brain. nAChR activation regulates release of various neurotransmitters, including norepinephrine (NA). Given evidence that NA may serve a critical functional role in cer...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.2003.01575.x
更新日期：2003-03-01 00:00:00
abstract：:Increased arachidonic acid release occurred during activation of catecholamine secretion from cultured bovine adrenal medullary chromaffin cells. The nicotinic agonist 1,1-dimethyl-4- phenylpiperazinium (DMPP) caused an increased release of preincubated [3H]arachidonic acid over a time course which corresponded to the...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1984.tb06690.x
更新日期：1984-07-01 00:00:00
