Abstract:
:The herpes simplex virus type 2 (HSV-2) protein ICP10PK has anti-apoptotic activity in virus-infected hippocampal cultures through activation of the Ras/Raf-1/MEK/ERK pathway. To exclude the possible contribution of other viral proteins to cell fate determination, we examined the survival of primary hippocampal cultures and neuronally differentiated PC12 cells transfected with ICP10PK from apoptosis caused by nerve growth factor (NGF) withdrawal. NGF deprivation caused apoptosis in cultures mock-transfected or transfected with the kinase-negative ICP10 mutant p139(TM), but not in ICP10PK-transfected cultures. In one clone (PC47), ICP10PK inhibited caspase-3 activation through up-regulation/stabilization of adenylate cyclase (AC), activation of PKA and MEK, and the convergence of the two pathways on extracellular signal-regulated kinase activation. The anti-apoptotic proteins Bag-1 and Bcl-2 were stabilized and the pro-apoptotic protein Bad was phosphorylated (inactivated). In another clone (PC70), ICP10PK inhibited apoptosis through MEK-dependent up-regulation of the anti-apoptotic protein XIAP (that inhibits the activity of processed caspase-3) and down-regulation of the apoptogenic protein Smac/DIABLO. This may be cell-type specific, but the baculovirus p35 protein did not potentiate the neuroprotective activity of ICP10PK in PC12 cells, suggesting that ICP10PK inhibits both caspase activation and activity. The data indicate that ICP10PK inhibits apoptosis independent of other viral proteins and is a promising neuronal gene therapy platform.
journal_name
J Neurochemjournal_title
Journal of neurochemistryauthors
Wales SQ,Li B,Laing JM,Aurelian Ldoi
10.1111/j.1471-4159.2007.04745.xsubject
Has Abstractpub_date
2007-10-01 00:00:00pages
365-79issue
1eissn
0022-3042issn
1471-4159pii
JNC4745journal_volume
103pub_type
杂志文章abstract::The effects of gamma-aminobutyric acid (GABA) on the spontaneous release of endogenous glutamic acid (Glu) or aspartic acid (Asp) and the effects of Glu on the release of endogenous GABA or [3H]GABA were studied in superfused rat cerebral cortex synaptosomes. GABA increased the outflow of Glu (EC50 17.2 microM) and As...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1993.tb03558.x
更新日期:1993-07-01 00:00:00
abstract::Neural stem/progenitor cells (NSPCs) are multipotent cells within the embryonic and adult brain that give rise to both neuronal and glial cell lineages. Maintenance of NSPC multipotency is promoted by low oxygen tension, although the metabolic underpinnings of this trait have not been described. In this study, we inve...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.12204
更新日期:2013-05-01 00:00:00
abstract::Dysregulated metabolism and consequent extracellular accumulation of amyloid-β (Aβ) peptides in the brain underlie the pathogenesis of Alzheimer's disease. Extracellular Aβ in the brain parenchyma is mainly secreted from the pre-synaptic terminals of neuronal cells in a synaptic activity-dependent manner. The p24 fami...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.13000
更新日期:2015-05-01 00:00:00
abstract::Previously used methods of comparing amperometric spike characteristics from two separate groups of cells have entailed pooling all the values for a spike characteristic from each group of cells and then statistically comparing the two samples. Although this approach has indicated that there are significant difference...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2000.741086.x
更新日期:2000-03-01 00:00:00
abstract::Glycogen synthase kinase-3beta (GSK-3beta) is a multifunctional enzyme involved in a variety of biological events including development, glucose metabolism and cell death. Its activity is inhibited by phosphorylation of the Ser9 residue and up-regulated by Tyr216 phosphorylation. Activated GSK-3beta increases phosphor...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2005.03363.x
更新日期:2005-10-01 00:00:00
abstract::Environmental stress can interact with genetic predisposition to increase the risk of developing psychopathology. In this work, we tested the hypothesis that social isolation stress interacts with impaired glutathione synthesis and have cumulative effects on the neurochemical profile of the frontal cortex. A mouse mod...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.14116
更新日期:2017-09-01 00:00:00
abstract::A procedure is described for the rapid preparation of nerve ending particles (synaptosomes) from 11 regions of one rat brain. The synaptosomal fractions have been characterized by electron microscopy and determination of four marker enzymes, i.e., glutamate decarboxylase (GAD), acetylcholinesterase, succinate dehydrog...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1985.tb04076.x
更新日期:1985-09-01 00:00:00
abstract::Substances that mimic the actions of causative gene products of familial Parkinson's disease (PD) are candidate as causative agents of idiopathic PD. 1-Benzyl-1,2,3,4-tetrahydroisoquinoline (1BnTIQ), an endogenous neurotoxin, is present at three times higher levels in CSF of PD patients than in CSF of control subjects...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2010.06576.x
更新日期:2010-09-01 00:00:00
abstract::It is necessary for the cell-cycle machinery of neurons to be suppressed to promote differentiation and maintenance of their terminally differentiated state. Reactivation of the cell cycle in response to neurotoxic insults leads to neuronal cell death and some cell-cycle-related proteins contribute to the process. p27...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.13918
更新日期:2017-02-01 00:00:00
abstract::Glial glutamate transporter-1 (GLT-1) is the predominant subtype of glutamate transporters which are responsible for the homeostasis of extracellular glutamate. Our previous studies have shown that up-regulation in GLT-1 protein expression matches brain ischemic tolerance induced by cerebral ischemic preconditioning (...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2011.07396.x
更新日期:2011-10-01 00:00:00
abstract::Lysophosphatidic acid receptor (LPA(1)) signaling initiates neuropathic pain through demyelination of the dorsal root (DR). Although LPA is found to cause down-regulation of myelin proteins underlying demyelination, the detailed mechanism remains to be determined. In the present study, we found that a single intrathec...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2010.06664.x
更新日期:2010-05-01 00:00:00
abstract::We investigated, using adult (2-month-old) and senescent (12- and 24-month-old) rats, the effects of aging on the relationship between the alpha 1-adrenergic coupling system and the membrane viscosity of the cerebral cortex. There was no age-related difference in the KD values of [3H]prazosin binding on the membranes....
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1990.tb08822.x
更新日期:1990-07-01 00:00:00
abstract::We have shown that following heat shock (42.5 degree C for 30 min), mouse-derived C1300 N2A neuroblastoma cells contain increased levels of mRNA coding for the inducible form of heat shock protein 70 and for ubiquitin. Incubation of C1300 cells with iron also induces an elevation in content of mRNAs coding for the sam...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1993.tb03198.x
更新日期:1993-02-01 00:00:00
abstract::Neurofilament (NF) proteins are distributed in a diminishing proximodistal gradient along rat sciatic nerve when compared with total noncollagen or other proteins in nerve. About a twofold decline of NF proteins can be detected by quantitating nerve proteins that have been separated by gel electrophoresis. A similar d...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1990.tb04157.x
更新日期:1990-08-01 00:00:00
abstract::The first calpain protease was discovered over 40 years ago now, yet despite the vast amount of literature that has subsequently emerged detailing their involvement in the pathophysiology of a variety of human diseases, it is only in the last decade that calpain-mediated actions along the secretory pathway have begun ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章,评审
doi:10.1111/j.1471-4159.2007.04815.x
更新日期:2007-11-01 00:00:00
abstract::Fragile X syndrome (FXS) is caused by the loss of functional fragile X mental retardation protein (FMRP). Loss of FMRP results in an elevated basal protein expression profile of FMRP targeted mRNAs, a loss of local metabotropic glutamate receptor (mGluR)-regulated protein synthesis, exaggerated long-term depression an...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.12453
更新日期:2013-12-01 00:00:00
abstract::Neuron-secreted factors induce astrocytic expression of the glutamate transporter, GLT-1 (excitatory amino acid transporter 2). In addition to their elaborate anatomic relationships with neurons, astrocytes also have processes that extend to and envelop the vasculature. Although previous studies have demonstrated that...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.14135
更新日期:2017-12-01 00:00:00
abstract::The mammalian telencephalon, which comprises the cerebral cortex, olfactory bulb, hippocampus, basal ganglia, and amygdala, is the most complex and intricate region of the CNS. It is the seat of all higher brain functions including the storage and retrieval of memories, the integration and processing of sensory and mo...
journal_title:Journal of neurochemistry
pub_type: 杂志文章,评审
doi:10.1111/j.1471-4159.2008.05522.x
更新日期:2008-09-01 00:00:00
abstract::K-252b is a kinase inhibitor structurally related to K-252a, which is known to abolish selectively the effects of nerve growth factor (NGF) on PC12 cells and PNS neurons. We tested whether K-252b, K-252a, and staurosporine, another related compound, are effective and selective inhibitors of NGF actions on CNS neurons....
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1991.tb08243.x
更新日期:1991-09-01 00:00:00
abstract::To examine whether the concentration gradient of glutamine (Gln) drives concentrative Na(+)-independent uptake of neutral amino acids (NAA) in mouse cerebral astrocytes, uptake was compared in "Gln-depleted" and "Gln-replete" cultures. Uptake (30 min in Na(+)-free buffer) of histidine, kynurenine, leucine, tyrosine, a...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1992.tb08895.x
更新日期:1992-07-01 00:00:00
abstract::There is increasing evidence that a number of cytokines and their receptors are involved in the processes that lead to the development and maintenance of neuropathic pain states. Here we demonstrate that levels of CX3CR1 (the receptor for the chemokine fractalkine) mRNA in lumbar dorsal root ganglia (DRG) increase 5.8...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2008.05419.x
更新日期:2008-07-01 00:00:00
abstract::Expression of the carboxyl-terminal fragment (CT) of the beta-amyloid precursor protein (APP) in transgenic animals has been linked with neurotoxicity. However, it remains to be clarified whether the neurotoxicity is caused by beta-amyloid proteins (A betas) derived from CT or by CT itself. To study the in vivo neurot...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1998.71020875.x
更新日期:1998-08-01 00:00:00
abstract::Transporters of the solute carrier 6 (SLC6) family mediate the reuptake of neurotransmitters such as dopamine, norepinephrine, serotonin, GABA, and glycine. SLC6 family members are 12 transmembrane helix-spanning proteins that operate using the transmembrane sodium gradient for transport. These transporters assume var...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.15145
更新日期:2020-08-07 00:00:00
abstract::The Na+ and K+ concentrations in isolated Torpedo marmorata synaptosomes were determined. Synaptosomes made according to the method of Israël et al. have high internal Na+ (290 mM) and low internal K+ (30 mM) concentrations. Modification of the homogenisation media permitted the isolation of synaptosomes which could m...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1981.tb00597.x
更新日期:1981-04-01 00:00:00
abstract::Increasing evidence suggests that proteasome inhibition plays a causal role in promoting the neurodegeneration and neuron death observed in multiple disorders, including Alzheimer's disease (AD) and Parkinson's disease (PD). The ability of severe and acute inhibition of proteasome function to induce neuron death and n...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2003.01885.x
更新日期:2003-07-01 00:00:00
abstract::In the present study, by means of genetic, biochemical, morphological, and electrophysiological approaches, the role of large-conductance voltage- and Ca(2+)-dependent K(+) channels (BK channels) in the release of excitatory and non-excitatory neurotransmitters at hippocampal and non-hippocampal sites has been investi...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2010.06938.x
更新日期:2010-10-01 00:00:00
abstract::The lipid composition of the brain, including myelin, was studied in detail in two cases with a variant form of metachromatic leukodystrophy (multiple sulphatase deficiency type). In the white matter, the sulphatide concentration was 3-4 times higher than the normal level in both cases. There was a significant accumul...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1976.tb00310.x
更新日期:1976-11-01 00:00:00
abstract::Pigment epithelium-derived factor (PEDF), purified from human fetal retinal pigment epithelium cell culture medium, was shown to potentiate the differentiation of human Y-79 retinoblastoma cells. To investigate potential neurotrophic effects of PEDF on neurons other than those of retinal derivation, we used cultures o...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1995.64062509.x
更新日期:1995-06-01 00:00:00
abstract::Glutamate receptors belonging to the subclass specifically activated by alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) were solubilized from rat forebrain membranes with Triton X-100 and partially purified through a series of three chromatographic steps. Specific [3H]AMPA binding increased 30-60-fold ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1992.tb11038.x
更新日期:1992-11-01 00:00:00
abstract::Optimal neuronal activity requires that supporting cells provide both efficient nutrient delivery and waste disposal. The incomplete processing of engulfed waste by their lysosomes can lead to accumulation of residual material and compromise their support of neurons. As most degradative lysosomal enzymes function best...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2012.07804.x
更新日期:2012-08-01 00:00:00