Abstract：
:The goal of this study was to examine the responsiveness of an immortalized catecholaminergic neuronal line, 2N27, to various growth factors and identify those which promote catecholaminergic expression. 2N27 is a newly established neural cell line derived from fetal rat mesencephalic tissue and, thus, contains tyrosine hydroxylase (TH), a reliable marker for catecholaminergic neurons. Using TH activity as a biochemical index, we examined the responsiveness to both recognized trophic factors (NGF, TGF-beta and basic- and acidic-FGF) as well as novel, glia-derived factors present in conditioned media from several glial sources. The glial cells included MACH, a normal cell line derived from aged mouse cerebral hemispheres NBCC, normal glia derived from newborn mouse cerebral hemispheres; and C-6 glioma cells, 2B clone, passage 72, predominately astrocytes. Cells were cultured in the presence of added factors from 0 to 3 days in vitro (DIV) and were harvested on day 4. We found that 2N27 neural cells responded differentially to growth factors. No change was observed in TH activity in response to NGF, TH activity even decreased in response to b-FGF ad TGF-beta addition to the culture medium. However, a dose dependent increase in TH activity was observed following treatment with a-FGF and the increase to a-FGF was associated to an increase in cell proliferation as compared to TH increase by cAMP associated to differentiation. However, the 2N27 cells responded with a marked increase in TH when cultured in the glial cell conditioned media. We conclude that immortal cells require a variety of microenvironmental signals to maintain their phenotype.
journal_name
Neurochem Resjournal_title
Neurochemical researchauthors
Grove J,Kentroti S,Prasad K,Vernadakis Adoi
10.1023/a:1022482520358subject
Has Abstractpub_date
1997-03-01 00:00:00pages
267-71issue
3eissn
0364-3190issn
1573-6903journal_volume
22pub_type
杂志文章abstract：:Rhesus macaque monkey brain microvessel endothelial cells (BMECs) were isolated and grown in culture in an effort to establish an appropriate primate in vitro model of the endothelial component of the blood-brain barrier. The presence of Factor VIII antigen, alkaline phosphatase, gamma-glutamyl transpeptidase, lactate...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00967320
更新日期：1994-04-01 00:00:00
abstract：:We tested the action of proline-rich peptide (PRP-1) and cobra venom Naja Naja Oxiana (NOX) on Deiters' nucleus neurons at 3rd, 15th and 35th days after unilateral labyrinthectomy (UL). Early and late tetanic, post-tetanic potentiation and depression of Deiters'neurons to bilateral high frequency stimulation of hypoth...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-010-0239-7
更新日期：2010-11-01 00:00:00
abstract：:The kinetics and specificity of taurine and beta-alanine uptake were studied in primary cultures of rat astrocytes under identical experimental conditions. The uptake consisted of nonsaturable penetration and saturable high-affinity transport that was strictly sodium dependent. The cells accumulated taurine more effec...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00967969
更新日期：1986-02-01 00:00:00
abstract：:During the past decade a new approach to pathogenetic studies of hepatic encephalopathy has been undertaken to identify the neurochemical alterations which characterize the syndrome. Using animal models of hepatic encephalopathy electrophysiological, behavioral, pharmacological and biochemical evidence were provided o...
journal_title：Neurochemical research
pub_type： 杂志文章,评审
doi：10.1007/BF00972205
更新日期：1990-02-01 00:00:00
abstract：:The changes in both the levels of some free amino acids and their metabolism in the rat brain during the first 24 hr of postnatal life were studied. The content of glutamic acid decreased for the first 2 hr; it remained at the lowest level for the next 4 hr, when it began to increase. The content of alanine decreased ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00966169
更新日期：1980-10-01 00:00:00
abstract：:Rabbits sensitized with whole nervous tissue or myelin basic protein (MBP) plus adjuvant and developing experimental allergic encephalomyelitis (EAE) were studied for the presence of oligoclonal immunoglobulin (Ig) bands in spinal fluid and serum. Samples obtained prior to sensitization and at the time of sacrifice we...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00963909
更新日期：1981-01-01 00:00:00
abstract：:The effects of pre-treatment with ENA-713, an acetylcholinesterase (AChE) inhibitor, on changes in pre- and postsynaptic cholinergic indices in gerbil brain following transient ischemia were studied at 4 and 14 days after recirculation. In the ischemic group, hippocampal acetylcholine (ACh) level was significantly red...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00966804
更新日期：1994-02-01 00:00:00
abstract：:The release of endogenous amino acids from depolarized rat hippocampal mossy fiber synaptosomes was investigated to assess the possible role(s) of glutamate and aspartate in mediating the excitatory mossy fiber synaptic input. The relative proportions of prodynorphin-derived peptides concomitantly released with amino ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00969176
更新日期：1990-01-01 00:00:00
abstract：:The effects of chronic pentobarbital (PB) treatment on the binding characteristics of [3H]flunitrazepam (FLU) in rat brain were examined. Saline or sodium PB (500 micrograms/10 microliters/hr) was infused into the lateral cerebral ventricles of rats for 6 days using osmotic pumps. Immediately before withdrawal, there ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00966726
更新日期：1994-01-01 00:00:00
abstract：:The preventive effect of dietary taurine supplementation on glial alterations in retina of streptozotocin-induced diabetic rats was examined in this study. Blood glucose content, content of taurine, glutamate and
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-008-9763-0
更新日期：2009-02-01 00:00:00
abstract：:A case-control study was undertaken to investigate the status of platelet monoamine oxidase-B (MAO-B) activity in Indian cases of idiopathic Parkinson's disease. A significant increase in the activity of platelet MAO-B was observed in Parkinson's cases (n = 26) as compared to controls (n = 26). No significant change i...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-009-9929-4
更新日期：2009-08-01 00:00:00
abstract：:Oxidative stress can induce neuronal apoptosis via the production of superoxide and hydroxyl radicals. This process is as a major pathogenic mechanism in neurodegenerative disorders. In this study, we aimed to clarify whether theaflavins protect PC12 cells from oxidative stress damage induced by H2O2. A cell model of ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-016-2069-8
更新日期：2016-12-01 00:00:00
abstract：:NMDA, the specific agonist of glutamate gated ion channels permeable to calcium, is implicated as a causal factor in the pathogenesis of several neurobiological disorders such as stroke, seizures, ischemia, and chronic neurodegenerative diseases. On the other hand, evidence on the roles of oxidative mechanisms involve...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF02533102
更新日期：1996-12-01 00:00:00
abstract：:Ethylcholine mustard aziridinium ion (ECMA) was infused intracerebroventricularly (icv) to rats followed by measurement of two markers of presynaptic cholinergic neurons, choline acetyltransferase (ChAT) activity and high affinity choline transport (HAChT), in the hippocampus and cortex. Bilateral icv administration o...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00971589
更新日期：1988-08-01 00:00:00
abstract：:In order to investigate the role of two free radical detoxificant enzymes in patients with aging brain disorders, superoxide dismutase (SOD) and catalase (CAT) activities have been measured in blood from male and female human patients of different ages with several types of aging brain disorders. When compared with ac...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF02532336
更新日期：1996-08-01 00:00:00
abstract：:The present study reports inhibition of taurine uptake in the rat retina in vitro to 49% of control by 1 mM guanidinoethyl sulfonate. No efflux of preloaded [14C]taurine was observed by incubation in the presence of guanidinoethyl sulfonate. The in vivo depletion of retinal taurine by guanidinoethyl sulfonate treatmen...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964157
更新日期：1983-12-01 00:00:00
abstract：:Turnover rate of individual molecular species of sphingomyelin of adult rat brain myelin and microsomal membranes was determined after an intracerebral injection of 100 microCi of [C3H3]choline. Myelin and microsomal membrane sphingomyelins were isolated from the rest of the lipids. The individual molecular species of...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00964414
更新日期：1981-10-01 00:00:00
abstract：:The microdialysis technique was used to study the effect of nitric oxide synthase (NOS) activity on taurine release. Taurine release was characterized in rat striatum that was excitotoxically lesioned compared to normal conditions. The basal taurine level of the dialysate decreased during quinolinate (QUIN) lesion in ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1022418231496
更新日期：1998-04-01 00:00:00
abstract：:Effects of single and repeated doses of acrylamide on fast and slow axonal transport of radio labeled proteins following the injection of L-[4,5-3H] leucine have been studied in the optic system of male Sprague-Dawley rats. A single dose of acrylamide (100 mg/kg) had no effect, but higher concentrations (200-300 mg/kg...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00973750
更新日期：1990-06-01 00:00:00
abstract：:Kainic acid-induced seizures produced early (2 hr) generalized edema and later (24 and 48 hr) necrotic edema in temporal cortex and hippocampus as measured by specific gravity changes. Mannitol given during the seizure partially protected against the early edema and prevented the necrotic edema indicating early edema ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF01000241
更新日期：1987-06-01 00:00:00
abstract：:The consumption of flavonoid-rich foods, in particular fruits and vegetables, has been epidemiologically associated with a reduced risk of heart disease, neurodegenerative disease, cancer and other chronic diseases. Flavonoid glycosides, the main class of flavonoids, have been shown to exert CNS-mediated activities, p...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-009-9969-9
更新日期：2009-10-01 00:00:00
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journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF00971637
更新日期：1988-12-01 00:00:00
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journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-011-0582-3
更新日期：2012-01-01 00:00:00
abstract：:The chemical warfare nerve agent (CWNA) soman irreversibly inhibits acetylcholinesterase (AChE) causing seizure, neuropathology and neurobehavioral deficits. Pyridostigmine bromide (PB), the currently approved pretreatment for soman, is a reversible AChE inhibitor that does not cross the blood-brain barrier (BBB) to p...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-011-0564-5
更新日期：2011-12-01 00:00:00
abstract：:Kv1.3 is a voltage gated potassium channel that has been implicated in pathophysiology of multiple sclerosis (MS). In the present study we investigated temporal and cellular expression pattern of this channel in the lumbar part of spinal cords of animals with experimental autoimmune encephalomyelitis (EAE), animal mod...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-018-2509-8
更新日期：2018-05-01 00:00:00
abstract：:SENP3 (SUMO-specific proteases 3), a member of the small ubiquitin-like modifier specific protease family, was identified as a molecule that deconjugates SUMOylation of modified protein substrates and functions as an isopeptidase by disrupting SUMO homeostasis to facilitate cancer development and progression. However,...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-012-0869-z
更新日期：2012-12-01 00:00:00
abstract：:The copper-transporting ATPases Atp7A and Atp7B play a major role in controlling intracellular copper levels. In addition, they are believed to deliver copper to the copper-requiring proteins destined for the secretory vesicles. One cuproprotein, dopamine beta-hydroxylase (DBH) functions in the biosynthesis of norepin...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1023219308890
更新日期：2003-06-01 00:00:00
abstract：:Exercise has been regarded as an effective rehabilitation strategy to facilitate motor and cognitive functional recovery after stroke, even though the complex effects associated with exercise-induced repair of cerebral ischemic injury are not fully elucidated. The enhancement of angiogenesis and neurogenesis, and the ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/s11064-019-02728-1
更新日期：2019-04-01 00:00:00
abstract：:A Zn(2+)-glycerophosphocholine cholinephosphodiesterase was purified with a specific activity of 4.6 mumole/min.mg protein from bovine brain membranes by procedures involving PI-PLC solubilization, concanavalin A affinity chromatography, CM-sephadex chromatography and Sephadex G-150 chromatography. Based on molecular ...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1007/BF02532395
更新日期：1996-10-01 00:00:00
abstract：:CNS trauma has been associated with an increase in free radical production, but the cellular sources of this increase or the mechanism involved in the production of free radicals are not known. We, therefore, investigated the effects of trauma on free radical production in cultured neurons, astrocytes and BV-2 microgl...
journal_title：Neurochemical research
pub_type： 杂志文章
doi：10.1023/a:1014875210852
更新日期：2002-02-01 00:00:00
