Abstract:
:We recently reported that a new monoclonal antibody, 4F2, which labels oligodendroglial lineage cells, recognizes a DEAD-box RNA helicase Ddx54 and that Ddx54 binds to myelin basic protein (MBP) in brain and cultured oligodendrocytes. To elucidate the biological function of Ddx54, we generated a recombinant adenovirus, Ad-shRNA:Ddx54, expressing a short hairpin RNA to silence endogenous Ddx54 protein. The virus was intraventricularly injected into the brains of mice on postnatal day (PD) 2. The brains at PD 9 were then analyzed by immunohistochemistry. In untreated normal brain sections, as well as control brains that had been injected with Ad-β-Gal, myelination of axons occurred in the corpus callosum with filamentous patterns of immunosignals of myelin-associated glycoprotein (MAG) and MBP. In Ad-shRNA:Ddx54-injected brain, substantial amounts of MAG and MBP immunosignals were present, but MBP immunosignals accumulated in the subplate layer and did not intrude into the emerging white matter. Immunoblot analysis revealed that Ddx54 knockdown caused a significant decrease in the level of 21.5 kDa MBP isoform and Ddx54, but the amount of Olig2; 2',3'-cyclic nucleotide 3' phosphodiesterase; MAG; three MBP isoforms (14, 17.5, and 18 kDa); and QKI-5, QKI-6, and QKI-7 proteins remained unchanged. Transfection of the Ddx54 expression vector into luciferase reporter-introduced neuroepithelial cells resulted in upregulated MBP promoter activity. Immunoprecipitation of Ddx54 protein in MBP-transfected HEK293 cells indicated that Ddx54 may directly interact with MBP mRNA. These results suggest that Ddx54 protein play an important role in central nervous system myelination, presumably in myelin sheath formation after the differentiation of oligodendrocytes.
journal_name
J Neurosci Resjournal_title
Journal of neuroscience researchauthors
Zhan R,Yamamoto M,Ueki T,Yoshioka N,Tanaka K,Morisaki H,Seiwa C,Yamamoto Y,Kawano H,Tsuruo Y,Watanabe K,Asou H,Aiso Sdoi
10.1002/jnr.23162subject
Has Abstractpub_date
2013-03-01 00:00:00pages
335-48issue
3eissn
0360-4012issn
1097-4547journal_volume
91pub_type
杂志文章abstract::In this study, we examined the neuroprotective effect of standardized Bacopa monniera extract (BME: BESEB CDRI-08) against the D-galactose (D-gal)-induced brain aging in rats. Experimental groups were subjected to contextual-associative learning task. We found that the administration of BME in the D-gal-treated group ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23080
更新日期:2012-10-01 00:00:00
abstract::We have developed a transgenic mouse expressing the Cre recombinase under control of a tetracycline-responsive promoter. Using a CamKIIalpha-driven tTA transgenic strain and a lacZ reporter mouse, we obtained the expected neuronal pattern of recombination in the olfactory lobe, cortex, striatum, hippocampus and Purkin...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.10213
更新日期:2002-04-15 00:00:00
abstract::Reference genes are often used to normalize expression of data from real-time quantitative reverse transcription-polymerase chain reaction (RT-qPCR), and only a validation of their stability during a given experimental paradigm leads to reliable interpretations. The present study was thus designed to validate potentia...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.22282
更新日期:2010-04-01 00:00:00
abstract::The structures associated with learning and memory have been widely studied for over 100 years. The idea of the famous neuropsychologist K.S. Lashley, that learning and memory are stored diffusely in the brain, dominated neuroscience in the early half of Twentieth Century. Since Scoville reported in 1957 a persistent ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章,评审
doi:10.1002/jnr.10545
更新日期:2003-03-01 00:00:00
abstract::The Dale's law postulates that a neuron releases the same neurotransmitter from all its branches. In the case of multiple neurotransmitters it would require all transmitters to be released from all branches. The retinal cholinergic amacrine cells contain and release gamma-aminobutyric (GABA) and, therefore, if GABA an...
journal_title:Journal of neuroscience research
pub_type: 杂志文章,评审
doi:10.1002/(sici)1097-4547(19991115)58:4<475::aid-jnr
更新日期:1999-11-15 00:00:00
abstract::Using a solution-hybridization assay and specific oligonucleotidic probes, we have studied IGF-I and insulin receptor mRNAs in the rat central nervous system during development. The expression of mRNAs was maximal at embryonic day 15 and 20 for IGF-I receptors, and at embryonic day 20 and the day of birth for insulin ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490280212
更新日期:1991-02-01 00:00:00
abstract::Photopic L-type responses were recorded from the soma and the axon terminal of horizontal cells of the catfish (Ictalurus punctatus) retina in eye-cup preparations. The responses were produced by a spot of light with 100-micron diameter (intensity, 10 microW/cm2), which was flashed or steadily illuminated and swept al...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490110405
更新日期:1984-01-01 00:00:00
abstract::The neuronal intermediate filaments include not only the neurofilament triplet proteins but also peripherin and alpha-internexin. To determine whether neurite outgrowth is enhanced by alpha-internexin, the cDNA of rat alpha-internexin tagged with enhanced green fluorescent protein (EGFP) was transfected into a rat adr...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.20506
更新日期:2005-06-01 00:00:00
abstract::Accumulating evidence points to roles for oxidative stress, amyloid beta (Aβ), and mitochondrial dysfunction in the pathogenesis of Alzheimer's disease (AD). In neurons, the base excision repair pathway is the predominant DNA repair (BER) pathway for repairing oxidized base lesions. Apurinic/apyrimidinic endonuclease ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23565
更新日期:2015-06-01 00:00:00
abstract::In our in vitro model, rasagiline a selective irreversible monoamine oxidase-B (MAO-B) inhibitor, protected nerve growth factor (NGF)-differentiated PC12 cells from cell death under oxygen and glucose deprivation (OGD). The severity of the OGD insult, as expressed by cell death, was time-dependent. Exposure of the cel...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:
更新日期:1999-11-01 00:00:00
abstract::The effects of the nematocyst venom of the sea anemone Bunodosoma cangicum on depolarization-activated currents were studies in opener crayfish muscle fibers and in cultured bovine chromaffin cells. The venom selectively and reversibly blocked the Ca(2+)-dependent K+ current (IK(Ca)) present in crayfish muscle in a do...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490420412
更新日期:1995-11-01 00:00:00
abstract::Apolipoprotein E (ApoE) is the major brain lipoprotein and plays an important role in lipid transport. ApoE-deficient mice whose apoE gene has been knocked out have distinct cognitive and neurochemical deficits, and their recovery from brain injury is impaired. In the present study we examined the possibility that the...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:
更新日期:1999-11-15 00:00:00
abstract::Oligodendrocytes (OLs) and the myelin produced by them are enriched in two glycosphingolipids, galactosylceramide (GalC) and its sulfated form, cerebroside sulfate (CBS). We showed earlier that these two glycolipids in opposed liposomal membranes or in methanol solution can adhere to each other. Here we have examined ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.1217
更新日期:2001-10-15 00:00:00
abstract::Acoustic overstimulation causes apoptotic cell death in the cochlea. This death process is mediated, in part, by the mitochondrial signaling pathway involving Bcl-2 family proteins. Myeloid cell leukemia sequence 1 (Mcl-l) is an antiapoptotic member of the Bcl-2 family. Its involvement in noise-induced hair cell death...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.22333
更新日期:2010-06-01 00:00:00
abstract::The effect of the potent soluble guanylyl cyclase (sGC) inhibitor 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ) on neurite outgrowth and retraction was investigated in PC12 cells and SH-SY5Y human neuroblastoma cells. ODQ inhibited neurite outgrowth and triggered neurite retraction in the cells stimulated with ner...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21838
更新日期:2009-01-01 00:00:00
abstract::Within the parenchyma of the CNS, the endothelium of all vessels is surrounded by a layer of cells, pericytes in capillaries and periendothelial or intima smooth muscle cells in other vessels. The origin of these cell types, their relationship, and their role are unclear. However, it has been recently shown that genet...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:
更新日期:1999-11-01 00:00:00
abstract::The phosphorylative neuromodulation of the regulatory subunit of protein kinase type II (R-II) in cytosolic fractions from denervated and sham-operated, contralateral soleus muscles of the rat was evaluated. The denervation-induced increase in the 32P-phosphorylation of R-II is not related to an increased dephosphoryl...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490140208
更新日期:1985-01-01 00:00:00
abstract::Nerve growth factor (NGF) is the best-characterized neurotrophic substance and has recently been shown to influence cholinergic neurons in the basal forebrain. Hippocampus and neocortex, the primary targets for these central neurons, have further been found to contain high levels of NGF. Using enzyme immunoassay and a...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490180404
更新日期:1987-01-01 00:00:00
abstract::Increased serum level of homocysteine, a sulfur-containing amino acid, is considered a risk factor in vascular disorders and in dementias. The effect of homocysteine and metabolically related compounds on brain production of kynurenic acid (KYNA), an endogenous antagonist of glutamate ionotropic receptors, was studied...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.20359
更新日期:2005-02-01 00:00:00
abstract::The engrailed gene has been identified in Drosophila as an important developmental gene involved in the control of segmentation. Here we describe the embryonic expression of a chicken gene, ChickEn (Darnell et al.: J Cell Biol 103(5):311a, 1986), which contains homology to the Drosophila engrailed gene. Northern blots...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490210234
更新日期:1988-10-01 00:00:00
abstract::BACE1 initiates processing of the amyloid precursor protein (APP) in the production of amyloid beta (Abeta) peptide. After beta-cleavage by BACE1, the C-terminal stub of the APP fragment is further processed by the gamma-secretase complex to produce Abeta. Because APP, Abeta, the gamma-secretase complex, and BACE1 are...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21858
更新日期:2009-02-01 00:00:00
abstract::In the present work, we analyzed whether endogenous and/or transplanted bone marrow mononuclear cells (BMMC) migrate spontaneously to the crushed sciatic nerve and whether they transdifferentiate into Schwann cells (SC) in order to help repair the damaged tissue. We also studied both the immunohistochemical evolution ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.22645
更新日期:2011-08-01 00:00:00
abstract::The prenatal and early postnatal stages represent a critical time window for human brain development. Interestingly, this window partly overlaps with the maturation of the intestinal flora (microbiota) that play a critical role in the bidirectional communication between the central and the enteric nervous systems (mic...
journal_title:Journal of neuroscience research
pub_type: 杂志文章,评审
doi:10.1002/jnr.24616
更新日期:2020-07-01 00:00:00
abstract::The cellular constituents of the blood-brain barrier (BBB) must make finely tuned, regulatory responses to maintain microvascular homeostasis. The mechanisms by which this task is accomplished are largely unknown. However, it is thought they involve a series of cross-talk mechanisms among endothelial cells (EC), peric...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19990301)55:5<578::AID-JNR
更新日期:1999-03-01 00:00:00
abstract::The amino acid glutamate plays a key role in brain function. One of the major roles of glutamate is to mediate fast excitatory neurotransmission via activation of ionotropic glutamate receptors (iGluRs). More recently, however, it has become clear that glutamate also serves a regulatory function through activation of ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章,评审
doi:10.1002/(SICI)1097-4547(19961015)46:2<131::AID-JNR
更新日期:1996-10-15 00:00:00
abstract::A series of AMPA [(R,S)-alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid] analogues were evaluated for activity at homomeric, heteromeric, and chimeric rat GluR1(o) and GluR3(o) receptors expressed in Xenopus oocytes, using the two-electrode voltage clamp technique. The formation of heteromeric receptor compl...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(sici)1097-4547(19970715)49:2<176::aid-jnr
更新日期:1997-07-15 00:00:00
abstract::Metabotropic glutamate receptors (mGluRs) and calcium receptors (CaR) are closely related G protein-coupled receptors (GPCRs). The similar structural and functional properties of mGluRs and CaRs include conserved amino acid residues involved in glutamate binding in mGluRs and Ca2+ binding in the CaR. Furthermore, rece...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.10853
更新日期:2004-02-15 00:00:00
abstract::Raf kinases are downstream effectors of Ras and upstream activators of the MEK-ERK cascade. Ras and MEK-ERK signaling play roles in learning and memory (L&M) and neural plasticity, but the roles of Raf kinases in L&M and plasticity are unclear. Among Raf isoforms, B-raf is preferentially expressed in the brain. To det...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.20703
更新日期:2006-01-01 00:00:00
abstract::Four major discoveries on the function of the pedunculopontine nucleus (PPN) have significantly advanced our understanding of the role of arousal in neurodegenerative disorders. The first was the finding that stimulation of the PPN-induced controlled locomotion on a treadmill in decerebrate animals, the second was the...
journal_title:Journal of neuroscience research
pub_type: 杂志文章,评审
doi:10.1002/jnr.24417
更新日期:2019-12-01 00:00:00
abstract::Although upregulation of ryanodine receptor (RyR)-1 and -2 is mediated through the activation of dopamine D1 receptors (D1DRs) in the development of psychostimulant-induced place preference, little is known about how such increased expressions of RyRs are negatively regulated. This study investigated negative regulato...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23058
更新日期:2012-08-01 00:00:00