Immunocytochemical characterization of reactive optic nerve astrocytes and meningeal cells.

abstract：:Microglia undergo dynamic structural and transcriptional changes during the immune response to traumatic brain injury (TBI). For example, TBI causes microglia to form rod-shaped trains in the cerebral cortex, but their contribution to inflammation and pathophysiology is unclear. The purpose of this study was to determ...

journal_title：Glia

authors： Witcher KG,Bray CE,Dziabis JE,McKim DB,Benner BN,Rowe RK,Kokiko-Cochran ON,Popovich PG,Lifshitz J,Eiferman DS,Godbout JP

更新日期：2018-12-01 00:00:00

abstract：:Astrocytes support neurons not only physically but also chemically by secreting neurotrophic factors and energy substrates. Moreover, astrocytes establish a glial network and communicate through gap junctions in the brain. Connexin 43 (Cx43) is one of major component proteins in astrocytic gap junctions. Heterozygote ...

journal_title：Glia

authors： Nakase T,Yoshida Y,Nagata K

更新日期：2006-10-01 00:00:00

abstract：:Toll-like receptors 7 (TLR7) and 9 (TLR9) are important mediators of innate immune responses. Both receptors are located in endosomal compartments, recognize nucleic acids, and signal via Myeloid differentiation factor 88 (MyD88). In the current study, we analyzed TLR7 and TLR9 induced activation of astrocytes and mic...

journal_title：Glia

authors： Butchi NB,Du M,Peterson KE

更新日期：2010-04-15 00:00:00

abstract：:RhoGTPases are molecular switches that integrate extracellular signals to perform diverse cellular responses. This ability relies on the network of proteins regulating RhoGTPases activity and localization, and on the interaction of RhoGTPases with many different cellular effectors. Myelination is an ideal place for Rh...

journal_title：Glia

authors： Feltri ML,Suter U,Relvas JB

更新日期：2008-11-01 00:00:00

abstract：:The X-linked mutation rumpshaker (rsh), which is probably an allele of jimpy (jp), causes hypomyelination in the CNS of mice. This study examines the developmental expression of the morphology, glial cells, and immunostaining of myelin proteins in the optic nerve and spinal cord. The optic nerve contains varying numbe...

journal_title：Glia

authors： Fanarraga ML,Griffiths IR,McCulloch MC,Barrie JA,Kennedy PG,Brophy PJ

更新日期：1992-01-01 00:00:00

abstract：:The normal adult vertebrate nervous system is a relative quiescent tissue in terms of cell proliferation. However, astrocytes in many regions of the central nervous system (CNS) retain the capacity to undergo cell division. To examine the mechanisms that regulate the proliferation of astrocytes in the CNS we have util...

journal_title：Glia

authors： Nakatsuji Y,Miller RH

更新日期：1998-04-01 00:00:00

abstract：:The possibility of a modular organization of non-neuronal elements was analyzed in the opercular region of the striate neocortex in adult New World monkeys. For this purpose, and in order to follow possible correlations in the general organization of neuronal and astroglial elements, immunocytochemical procedures for ...

journal_title：Glia

authors： Colombo JA,Schleicher A,Zilles K

更新日期：1999-01-01 00:00:00

abstract：:Pharmacological and biochemical data suggest that noradrenaline (NA)-containing fibers not only regulate the activity of cortical neurons but also influence the functional state of non-neuronal elements. In the present study, immunocytochemistry with an antiserum against NA, followed by silver-gold intensification of ...

journal_title：Glia

authors： Paspalas CD,Papadopoulos GC

更新日期：1996-06-01 00:00:00

abstract：:The sequence of events by which new oligodendrocytes are generated in the adult mammalian central nervous system has not been clearly defined. Here we review old evidence that remyelinating cells can arise from the division of mature oligodendrocytes. In addition, we report the results of a tissue culture study compar...

journal_title：Glia

authors： Wood PM,Bunge RP

更新日期：1991-01-01 00:00:00

abstract：:Perisynaptic Schwann cells (PSCs) envelop axonal terminals and are physiologically distinct from the nearby myelinating Schwann cells (MSCs), which surround the same innervating motor axons. PSCs have special functions at the neuromuscular synapse, where they detect and can modulate neurotransmitter release. Although ...

journal_title：Glia

authors： Georgiou J,Charlton MP

更新日期：1999-08-01 00:00:00

abstract：:The purpose of the present study was to elucidate the expression and regulation of the L-cystine transporter, system x(c) (-), in Müller cells. In this study, newly developed conditionally immortalized rat Müller cell lines (TR-MUL) from transgenic rats harboring the temperature-sensitive SV 40 large T-antigen gene we...

journal_title：Glia

authors： Tomi M,Funaki T,Abukawa H,Katayama K,Kondo T,Ohtsuki S,Ueda M,Obinata M,Terasaki T,Hosoya K

更新日期：2003-09-01 00:00:00

abstract：:Glial cells from different brain regions and species are depolarized by the neurotransmitter glutamate. The depolarization or, if voltage-clamped at the resting membrane potential, the inward current induced by glutamate could be due either to activation of receptor-coupled ion channels or electrogenic uptake of the t...

journal_title：Glia

authors： Sontheimer H,Kettenmann H,Backus KH,Schachner M

更新日期：1988-01-01 00:00:00

abstract：:Historically, the human brain has been conceptually segregated from the periphery and further dichotomized into gray matter (GM) and white matter (WM) based on the whitish appearance of the exceptionally high lipid content of the myelin sheaths encasing neuronal axons. These simplistic dichotomies were unfortunately e...

journal_title：Glia

authors： Haroutunian V,Katsel P,Roussos P,Davis KL,Altshuler LL,Bartzokis G

更新日期：2014-11-01 00:00:00

abstract：:Segments from adult fish and rat retinae were explanted on myelin-marker expressing oligodendrocytes derived from the regenerating goldfish optic nerve. Fish axons grew in high density and even rat retinal axons regenerated to considerable length on the surface of the fish oligodendrocytes, suggesting that this type o...

journal_title：Glia

authors： Bastmeyer M,Bähr M,Stuermer CA

更新日期：1993-05-01 00:00:00

abstract：:The crosstalk between glial cells and neurons represents an exceptional feature for maintaining the normal function of the central nervous system (CNS). Increasing evidence has revealed the importance of glial progenitor cells in adult neurogenesis, reestablishment of cellular pools, neuroregeneration, and axonal (re)...

journal_title：Glia

authors： Martins-Macedo J,Lepore AC,Domingues HS,Salgado AJ,Gomes ED,Pinto L

更新日期：2021-03-01 00:00:00

abstract：:NG2 cells (polydendrocytes) are the fourth major non-neuronal cell type in the central nervous system parenchyma. They exhibit diverse properties, ranging from their well-established role as oligodendrocyte precursors to their ability to respond to neurotransmitters released by synaptic and non-synaptic mechanisms. Th...

journal_title：Glia

authors： Hill RA,Nishiyama A

更新日期：2014-08-01 00:00:00

abstract：:The electron donors glutathione and thioredoxin play many vital roles in the mechanisms of cells to cope with oxidative stress. Critical to such antioxidant functions are the ability to synthesize glutathione and keep it reduced via glutathione reductase and the ability to reduce oxidized-thioredoxin via thioredoxin r...

journal_title：Glia

authors： Eftekharpour E,Holmgren A,Juurlink BH

更新日期：2000-09-01 00:00:00

abstract：:We recently showed that trisialoganglioside (GT1b) induces cell death of dopaminergic neurons in rat mesencephalic cultures (Chung et al., Neuroreport 12:611-614, 2001). The present study examines the in vivo neurotoxic effects of GT1b on dopaminergic neurons in the substantia nigra (SN) of Sprague-Dawley rats. Seven ...

journal_title：Glia

authors： Ryu JK,Shin WH,Kim J,Joe EH,Lee YB,Cho KG,Oh YJ,Kim SU,Jin BK

更新日期：2002-04-01 00:00:00

abstract：:In order to improve understanding of remodeling events in the glaucomatous optic nerve head, the migration of optic nerve head astrocytes was studied in vitro. Since elevated intraocular pressure is an important stress factor identified in glaucomatous eyes, optic nerve head astrocytes were incubated under physical st...

journal_title：Glia

authors： Tezel G,Hernandez MR,Wax MB

更新日期：2001-05-01 00:00:00

abstract：:In the last decade, microRNAs have been increasingly recognized as key modulators of glial development. Recently, we identified miR-125a-3p as a new player in oligodendrocyte physiology, regulating in vitro differentiation of oligodendrocyte precursor cells (OPCs). Here, we show that miR-125a-3p is upregulated in acti...

journal_title：Glia

authors： Marangon D,Boda E,Parolisi R,Negri C,Giorgi C,Montarolo F,Perga S,Bertolotto A,Buffo A,Abbracchio MP,Lecca D

更新日期：2020-10-01 00:00:00

abstract：:Resident microglia of the rat CNS express a unique type of keratan sulfate immunoreactivity (KS-IR) that is lacking on peripheral monocytes/macrophages and associated with a so far unknown proteoglycan core protein. Microglial KS-IR is downregulated during T-cell-mediated autoimmune inflammation but largely preserved ...

journal_title：Glia

authors： Jander S,Schroeter M,Fischer J,Stoll G

更新日期：2000-06-01 00:00:00

abstract：:Previous studies suggest that glial cells contribute to synaptogenesis in specific neurons from the postnatal CNS. Here, we studied whether this is true for Purkinje cells (PCs), which represent a unique neuronal cell type due to their large size, massive synaptic input, and high vulnerability. Using new glia-free cul...

journal_title：Glia

authors： Buard I,Steinmetz CC,Claudepierre T,Pfrieger FW

更新日期：2010-04-01 00:00:00

abstract：:Williams-Beuren syndrome (WBS) is a microdeletion disorder with cognitive phenotype. NSUN5 gene, which encodes a cytosine-5 RNA methyltransferase, is located in WBS deletion locus. To investigate the influence of NSUN5 deletion on cognitive behaviors, we produced single-gene Nsun5 knockout (Nsun5-KO) mice. Here, we re...

journal_title：Glia

authors： Zhang T,Chen P,Li W,Sha S,Wang Y,Yuan Z,Shen B,Chen L

更新日期：2019-04-01 00:00:00

abstract：:In the adult mammalian brain, neurogenesis originates from astrocyte-like stem cells. We generated a transgenic mouse line in which the tetracycline dependent transactivator (tTA) is expressed under the control of the murine GFAP promoter. In this mouse line, inducible gene expression targets virtually all GFAP-expres...

journal_title：Glia

authors： Weber T,Baier V,Pauly R,Sahay A,Baur M,Herrmann E,Ciccolini F,Hen R,Kronenberg G,Bartsch D

更新日期：2011-04-01 00:00:00

abstract：:In non-excitable cells, stimulation of phosphoinositide (PI) turnover and inhibition of the endoplasmic reticulum (ER) Ca2+-ATPase are methods commonly used to deplete calcium stores, resulting in a capacitative Ca2+ influx (i.e., Ca2+ release-activated Ca2+ influx). Since this Ca2+ influx in glial cells has not been ...

journal_title：Glia

authors： Wu ML,Kao EF,Liu IH,Wang BS,Lin-Shiau SY

更新日期：1997-11-01 00:00:00

abstract：:Transient global ischemia induces CA1 hippocampal neuronal death without astrocyte death, perhaps mediated in part by the toxic translocation of zinc from presynaptic terminals to postsynaptic neurons. We tested the hypothesis that cellular depolarization, which occurs in the ischemic brain due to increased extracellu...

journal_title：Glia

authors： Sheline CT,Takata T,Ying H,Canzoniero LM,Yang A,Yu SP,Choi DW

更新日期：2004-04-01 00:00:00

abstract：:Enriched preparations of oligodendrocytes, isolated either from adult bovine brain or from 30-day-old rat brain, eventually yield cultures in MEM-15% calf serum that contain, in addition to oligodendrocytes, proliferating astrocytes and variable numbers of fibroblast-like cells. If these cultures are switched to a ser...

journal_title：Glia

authors： Norton WT,Farooq M,Chiu FC,Bottenstein JE

更新日期：1988-01-01 00:00:00

abstract：:Apoptosis of dentate granular cells in the hippocampal formation during bacterial meningitis may be mediated by glutamate toxicity. For this reason, we studied the relationship between glutamine synthetase activity and regional neuronal apoptosis in rabbits with experimental pneumococcal meningitis. The duration of me...

journal_title：Glia

authors： Tumani H,Smirnov A,Barchfeld S,Olgemöller U,Maier K,Lange P,Brück W,Nau R

更新日期：2000-03-01 00:00:00

abstract：:Astrocytes are thought to play a variety of key roles in the adult brain, such as their participation in synaptic transmission, in wound healing upon brain injury, and adult neurogenesis. However, to elucidate these functions in vivo has been difficult because of the lack of astrocyte-specific gene targeting. Here we ...

journal_title：Glia

authors： Mori T,Tanaka K,Buffo A,Wurst W,Kühn R,Götz M

更新日期：2006-07-01 00:00:00

abstract：:Astrocytes are arranged in highly organized gap junction-coupled networks, communicating via the propagation of Ca2+ waves. Astrocytes are gap junction-coupled not only to neighboring astrocytes, but also to oligodendrocytes, forming so-called panglial syncytia. It is not known, however, whether glial cells in panglia...

journal_title：Glia

authors： Beiersdorfer A,Scheller A,Kirchhoff F,Lohr C

更新日期：2019-07-01 00:00:00