Abstract：
:The formation and refinement of synaptic connections are key steps of neural development to establish elaborate brain networks. To investigate the functional role of protein tyrosine phosphatase (PTP) σ, we employed an olfactory sensory neuron (OSN)-specific gene manipulation system in combination with in vivo imaging of transparent zebrafish embryos. Knockdown of PTPσ enhanced the accumulation of synaptic vesicles in the axon terminals of OSNs. The exaggerated accumulation of synaptic vesicles was restored to the normal level by the OSN-specific expression of PTPσ, indicating that presynaptic PTPσ is responsible for the regulation of synaptic vesicle accumulation. Consistently, transient expression of a dominant-negative form of PTPσ in OSNs enhanced the accumulation of synaptic vesicles. The exaggerated accumulation of synaptic vesicles was reproduced in transgenic zebrafish lines carrying an OSN-specific expression vector of the dominant-negative PTPσ. By electron microscopic analysis of the transgenic line, we found the significant increase of the number of OSN-mitral cell synapses in the central zone of the olfactory bulb. The density of docked vesicles at the active zone was also increased significantly. Our results suggest that presynaptic PTPσ controls the number of OSN-mitral cell synapses by suppressing their excessive increase.
journal_name
J Neurochemjournal_title
Journal of neurochemistryauthors
Chen X,Yoshida T,Sagara H,Mikami Y,Mishina Mdoi
10.1111/j.1471-4159.2011.07411.xsubject
Has Abstractpub_date
2011-11-01 00:00:00pages
532-43issue
3eissn
0022-3042issn
1471-4159journal_volume
119pub_type
杂志文章abstract：:Transforming growth factor-beta1 (TGF-beta1) has central functions in development, tissue maintenance, and repair and has been implicated in major diseases. We discovered that TGF-beta1 contains several amphipathic helices and hydrophobic domains similar to apolipoprotein E (apoE), a protein involved in lipoprotein me...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2009.06222.x
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abstract：:Most recent studies aimed at defining the cellular and molecular mechanisms of Pavlovian fear conditioning have focused on protein kinase signaling pathways and the transcription factor cAMP-response element binding protein (CREB) that promote fear memory consolidation in the lateral nucleus of the amygdala (LA). Desp...
journal_title：Journal of neurochemistry
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doi：10.1111/j.1471-4159.2009.06491.x
更新日期：2010-02-01 00:00:00
abstract：:N-Copine is a novel protein with two C2 domains. Its expression is brain specific and up-regulated by neuronal activity such as kainate stimulation and tetanus stimulation evoking hippocampal CA1 long-term potentiation. We examined the localization and subcellular distribution of N-copine in mouse brain. In situ hybri...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1999.0720373.x
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abstract：:Steroidogenic acute regulatory protein (StAR) is a 30-kDa protein involved in the transport of cholesterol to the inner mitochondrial membrane and thus plays a key role in steroid biosynthesis. To clarify the implications of this protein in neurosteroid biosynthesis, we examined the possible expression of a StAR trans...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1998.71062231.x
更新日期：1998-12-01 00:00:00
abstract：:EAAC1/EAAT3 is a transporter of glutamate (Glu) present at the post-synaptic neuronal element, in opposition to the two other main transporters, GLAST/EAAT1 and GLT1/EAAT2, expressed at the excitatory amino acid (EAA) synapse by surrounding astrocytes. Although, in the adult, EAAC1/EAAT3 exhibits a rather low expressi...
journal_title：Journal of neurochemistry
pub_type： 杂志文章,评审
doi：10.1111/j.1471-4159.2006.03978.x
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abstract：:We assessed the functional expression of the norepinephrine (NE) transporter (NET) in cultured rat cortical astrocytes. Specific [3H]NE uptake increased in a time-dependent manner, and this uptake involves temperature- and Na+-sensitive mechanisms. The Na+-dependent [3H]NE uptake was saturable, and the Km for the proc...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.2003.01514.x
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abstract：:Fast-performance liquid chromatography was used to purify assembly-competent tubulin from porcine brain microtubule protein prepared by two cycles of assembly-disassembly. Microtubule protein (1-100 mg at 1.5-2.5 mg/ml) in buffer consisting of 0.1 M 2-(N-morpholino)ethanesulfonic acid, 0.5 mM MgCl2, 1 mM EGTA, 0.3 M K...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1986.tb01754.x
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abstract：:Dibutyryl cyclic AMP (dBcAMP) is known to induce maturation and differentiation in astrocytes. As myo-inositol is an important osmoregulator in astrocytes, we examined the effects of maturation and biochemical differentiation on the kinetic properties of myo-inositol transport. Treatment of astrocytes with dBcAMP sign...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1999.0730105.x
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abstract：:Dystonia musculorum (dt) mice suffer from a severe sensory neuropathy caused by mutations in the gene encoding the cytoskeletal cross-linker protein dystonin/bullous pemphigoid antigen 1 (Bpag1). Loss of function of dystonin/Bpag1 within neurons leads to a loss in the maintenance of cytoskeletal organization and to th...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
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abstract：:Mouse monoclonal B-50 antibodies (Mabs) were screened to select a Mab that may interfere with suggested functions of B-50 (GAP-43), such as involvement in neurotransmitter release. Because the Mab NM2 reacted with peptide fragments of rat B-50 containing the unique protein kinase C (PKC) phosphorylation site at serine...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1994.62030881.x
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abstract：:The tyrosine kinase receptors for the neurotrophins (Trk) are a family of transmembrane receptors that regulate the differentiation and survival of different neuronal populations. Neurotrophin binding to Trk leads to the activation of several signalling pathways including a rapid, but moderate, increase in intracellul...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.2003.02178.x
更新日期：2004-01-01 00:00:00
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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：:The putative neuroprotective properties of various flavonoids have long been reported. Among this class of chemicals, quercetin, a major flavone/flavonol naturally occurring in plants, deserves focused attention because of the myriad of beneficial effects observed in various in vitro and in vivo models of central nerv...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/jnc.13643
更新日期：2016-07-01 00:00:00
abstract：:Amino acid and monoamine concentrations were examined in tissue extracts of caudate nucleus of genetic substrains of BALB/c mice susceptible or resistant to audiogenic seizures. Amino acids [aspartate, glutamate, glycine, taurine, serine, gamma-aminobutyric acid (GABA)], monoamines, and related metabolites were separa...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1993.tb03290.x
更新日期：1993-04-01 00:00:00
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journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2009.06204.x
更新日期：2009-08-01 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：:The protein kinase v-akt murine thymoma viral oncogene homolog (AKT) gene family comprises three human homologs that phosphorylate and inactivate glycogen synthase kinase 3beta (GSK3beta). Studies have reported the genetic association of AKT1 with schizophrenia. Additionally, decreased AKT1 protein expression and the ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2006.04033.x
更新日期：2006-10-01 00:00:00
abstract：:We have observed recently that in vitro lipoperoxidation is enhanced in Down's syndrome brain homogenates of prenatal age. As this may relate to the composition of polyunsaturated acyl groups (PUFA) in phospholipids, we have examined the PUFA of ethanolamine and serine phosphoglycerides (EPG and SPG), which are partic...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1985.tb12896.x
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abstract：:The influence on microtubule assembly in vitro of monoclonal antibodies against microtubule-associated proteins (MAPs) was studied. Light scattering was used for measuring net polymer formation and electron microscopy for determining the influence of antibodies on microtubule morphology. Control experiments showed tha...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1987.tb00952.x
更新日期：1987-09-01 00:00:00
abstract：:Ketamine is an anesthetic that exhibits analgesic, psychotomimetic, and rapid antidepressant effects that are of particular neuropharmacological interest. Recent studies revealed astrocytic Ca(2+) signaling and regulated exocytosis as ketamine-targeted processes. Thus high-resolution cell-attached membrane capacitance...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/jnc.13715
更新日期：2016-09-01 00:00:00
abstract：:Dopaminergic neurons in cultures of dissociated cells from fetal rat mesencephalon were exposed to the principal metabolite of the neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), 1-methyl-4-phenyl-pyridinium ion (MPP+), and several of its structural analogues. At concentrations between 0.01 and 0.1 mic...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1988.tb02500.x
更新日期：1988-06-01 00:00:00
abstract：:Neuronal nicotinic acetylcholine receptors labelled with tritiated agonists are reduced in the cerebral cortex in Alzheimer's disease (AD), but to date it has not been demonstrated which nicotinic receptor subunits contribute to this deficit. In the present study, autopsy tissue from the temporal cortex of 14 AD cases...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1999.0731635.x
更新日期：1999-10-01 00:00:00
abstract：:The existence of pre-synaptic auto- and hetero receptors which modulate neurotransmitter release is well documented. Emerging evidence show that in some cases these pre-synaptic receptors may also cross-talk with each other. The aim of the present work was to investigate whether acetylcholine receptors (nAChRs) and do...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2009.05933.x
更新日期：2009-03-01 00:00:00
abstract：:A continuous enzyme-linked fluorometric assay was used for determining the characteristics for glutamate exocytosis from guinea-pig cerebrocortical synaptosomes. Ca2+-dependent release can be induced not only by K+, but also by the Na+ channel activator veratridine and the Ca2+ ionophore ionomycin. K+-induced release ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1987.tb03394.x
更新日期：1987-07-01 00:00:00
abstract：:In Alzheimer's disease, the neuritic or senile amyloid plaques in hippocampus and association cortex, the diffuse plaques in brain areas such as the cerebellum and sensorimotor cortex, and the amyloid deposits in the walls of pial and parenchymal blood vessels are mainly composed of amyloid beta-peptides. In the prese...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1996.67020880.x
更新日期：1996-08-01 00:00:00
abstract：:Recent evidence indicates that tyrosine phosphorylation may play important roles in retinal photoreceptor rod outer segments (ROS). We investigated the tyrosine phosphorylation of endogenous proteins in isolated bovine ROS. Several proteins with apparent molecular masses of 31, 39, 60, 83, 90, 97, 120, 140, and 180 kD...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.2000.0752006.x
更新日期：2000-11-01 00:00:00
abstract：:In contrast to typical neuroleptic drugs, which have high affinities for dopamine D2 receptors, clozapine binds to multiple neurotransmitter receptors. The mechanisms responsible for its superior clinical efficacy over typical neuroleptics remain unknown. Using an automated genomics approach, total gene expression ana...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.2001.00027.x
更新日期：2001-02-01 00:00:00
abstract：:The effects of a potent adenosine deaminase inhibitor, deoxycoformycin, on purine and amino acid neuro-transmitter release from the ischemic rat cerebral cortex were studied with the cortical cup technique. Cerebral ischemia (20 min) was elicited by four-vessel occlusion. Purine and amino acid releases were compared f...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1991.tb08198.x
更新日期：1991-02-01 00:00:00
abstract：:Peroxynitrite, the product of the radical-radical reaction between nitric oxide and superoxide anion, is a potent oxidant involved in tissue damage in neurodegenerative disorders. We investigated the modifications induced by peroxynitrite in tyrosine residues of proteins from synaptosomes. Peroxynitrite treatment (> o...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1999.0730727.x
更新日期：1999-08-01 00:00:00
abstract：:Liver fatty acid-binding protein (FABP1, L-FABP) has high affinity for and enhances uptake of arachidonic acid (ARA, C20:4, n-6) which, when esterified to phospholipids, is the requisite precursor for synthesis of endocannabinoids (EC) such as arachidonoylethanolamide (AEA) and 2-arachidonoylglycerol (2-AG). The brain...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/jnc.13664
更新日期：2016-08-01 00:00:00
