Nave, Klaus-Armin

[["dc.bibliographiccitation.journal","Annals of Clinical and Translational Neurology"],["dc.contributor.author","Epplen, Dirk B."],["dc.contributor.author","Prukop, Thomas"],["dc.contributor.author","Nientiedt, Tobias"],["dc.contributor.author","Albrecht, Philipp"],["dc.contributor.author","Arlt, Friederike A."],["dc.contributor.author","Stassart, Ruth M."],["dc.contributor.author","Kassmann, Celia M."],["dc.contributor.author","Methner, Axel"],["dc.contributor.author","Nave, Klaus-Armin"],["dc.contributor.author","Werner, Hauke B."],["dc.contributor.author","Sereda, Michael W."],["dc.date.accessioned","2019-07-09T11:41:24Z"],["dc.date.available","2019-07-09T11:41:24Z"],["dc.date.issued","2015"],["dc.description.abstract","Objective: Pelizaeus–Merzbacher disease (PMD) is a progressive and lethal leukodystrophy caused by mutations affecting the proteolipid protein (PLP1) gene. The most common cause of PMD is a duplication of PLP1 and at present there is no curative therapy available. Methods: By using transgenic mice carrying additional copies of Plp1, we investigated whether curcumin diet ameliorates PMD symptoms. The diet of Plp1 transgenic mice was supplemented with curcumin for 10 consecutive weeks followed by phenotypical, histological and immunohistochemical analyses of the central nervous system. Plp1 transgenic and wild-type mice fed with normal chow served as controls. Results: Curcumin improved the motor phenotype performance of Plp1 transgenic mice by 50% toward wild-type level and preserved myelinated axons by 35% when compared to Plp1 transgenic controls. Furthermore, curcumin reduced astrocytosis, microgliosis and lymphocyte infiltration in Plp1 transgenic mice. Curcumin diet did not affect the pathologically increased Plp1 mRNA abundance. However, high glutathione levels indicating an oxidative misbalance in the white matter of Plp1 transgenic mice were restored by curcumin treatment. Interpretation: Curcumin may potentially serve as an antioxidant therapy of PMD caused by PLP1 gene duplication. ª"],["dc.identifier.doi","10.1002/acn3.219"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/12013"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/58419"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation","info:eu-repo/grantAgreement/EC/FP7/201535/EU//NGIDD"],["dc.relation.euproject","Ngidd"],["dc.rights","CC BY-NC-ND 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc-nd/4.0"],["dc.title","Curcumin therapy in a Plp1 transgenic mouse model of Pelizaeus-Merzbacher disease"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","e3000943"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","PLoS Biology"],["dc.bibliographiccitation.volume","18"],["dc.contributor.author","Trevisiol, Andrea"],["dc.contributor.author","Kusch, Kathrin"],["dc.contributor.author","Steyer, Anna M."],["dc.contributor.author","Gregor, Ingo"],["dc.contributor.author","Nardis, Christos"],["dc.contributor.author","Winkler, Ulrike"],["dc.contributor.author","Köhler, Susanne"],["dc.contributor.author","Restrepo, Alejandro"],["dc.contributor.author","Möbius, Wiebke"],["dc.contributor.author","Werner, Hauke B."],["dc.contributor.author","Nave, Klaus-Armin"],["dc.contributor.author","Hirrlinger, Johannes"],["dc.date.accessioned","2021-04-14T08:31:16Z"],["dc.date.available","2021-04-14T08:31:16Z"],["dc.date.issued","2020"],["dc.description.abstract","In several neurodegenerative disorders, axonal pathology may originate from impaired oligodendrocyte-to-axon support of energy substrates. We previously established transgenic mice that allow measuring axonal ATP levels in electrically active optic nerves. Here, we utilize this technique to explore axonal ATP dynamics in the Plpnull/y mouse model of spastic paraplegia. Optic nerves from Plpnull/y mice exhibited lower and more variable basal axonal ATP levels and reduced compound action potential (CAP) amplitudes, providing a missing link between axonal pathology and a role of oligodendrocytes in brain energy metabolism. Surprisingly, when Plpnull/y optic nerves are challenged with transient glucose deprivation, both ATP levels and CAP decline slower, but recover faster upon reperfusion of glucose. Structurally, myelin sheaths display an increased frequency of cytosolic channels comprising glucose and monocarboxylate transporters, possibly facilitating accessibility of energy substrates to the axon. These data imply that complex metabolic alterations of the axon–myelin unit contribute to the phenotype of Plpnull/y mice."],["dc.identifier.doi","10.1371/journal.pbio.3000943"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/83539"],["dc.identifier.url","https://for2848.gwdguser.de/literature/publications/20"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation","FOR 2848: Architektur und Heterogenität der inneren mitochondrialen Membran auf der Nanoskala"],["dc.relation","FOR 2848 | P08: Strukturelle und funktionale Veränderungen der inneren mitochondrialen Membran axonaler Mitochondrien in vivo in einem dymyelinisierenden Mausmodell"],["dc.relation.eissn","1545-7885"],["dc.relation.workinggroup","RG Möbius"],["dc.rights","CC BY 4.0"],["dc.title","Structural myelin defects are associated with low axonal ATP levels but rapid recovery from energy deprivation in a mouse model of spastic paraplegia"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3465"],["dc.bibliographiccitation.issue","15"],["dc.bibliographiccitation.journal","Journal of Neuroscience Research"],["dc.bibliographiccitation.lastpage","3479"],["dc.bibliographiccitation.volume","87"],["dc.contributor.author","Schardt, Anke"],["dc.contributor.author","Brinkmann, Bastian G."],["dc.contributor.author","Mitkovski, Miso"],["dc.contributor.author","Sereda, Michael W."],["dc.contributor.author","Werner, Hauke B."],["dc.contributor.author","Nave, Klaus-Armin"],["dc.date.accessioned","2018-11-07T11:22:05Z"],["dc.date.available","2018-11-07T11:22:05Z"],["dc.date.issued","2009"],["dc.description.abstract","During myelin formation, vast amounts of specialized membrane proteins and lipids are trafficked toward the growing sheath in cell surface-directed transport vesicles. Soluble N-ethylmaleimide-sensitive factor (NSF) attachment proteins (SNAPs) are important components of molecular complexes required for membrane fusion. We have analyzed the expression profile and molecular interactions of SNAP-29 in the nervous system. In addition to its known enrichment in neuronal synapses, SNAP-29 is abundant in oligodendrocytes during myelination and in noncompact myelin of the peripheral nervous system. By yeast two-hybrid screen and coimmunoprecipitation, we found that the GTPases Rab3A, Rab24, and septin 4 bind to the N-terminal domain of SNAP-29. The interaction with Rab24 or septin 4 was GTP independent. In contrast, interaction between SNAP-29 and Rab3A was GTP dependent, and colocalization was extensive both in synapses and in myelinating glia. In HEK293 cells, cytoplasmic SNAP-29 pools were redistributed upon coexpression with Rab3A, and surface-directed trafficking of myelin proteolipid protein was enhanced by overexpression of SNAP-29 and Rab3A. Interestingly, the abundance of SNAP-29 in sciatic nerves was increased during remyelination and in a rat model of Charcot-Marie-Tooth disease, two pathological situations with increased myelin membrane biogenesis. We suggest that Rab3A may regulate SNAP-29-mediated membrane fusion during myelination. (C) 2009 Wiley-Liss, Inc."],["dc.description.sponsorship","DFG [SFB 523]; BMBF (Leukonet)"],["dc.identifier.doi","10.1002/jnr.22005"],["dc.identifier.isi","000270843400023"],["dc.identifier.pmid","19170188"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/55921"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","0360-4012"],["dc.title","The SNARE Protein SNAP-29 Interacts With the GTPase Rab3A: Implications for Membrane Trafficking in Myelinating Glia"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","533"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","The American Journal of Human Genetics"],["dc.bibliographiccitation.lastpage","546"],["dc.bibliographiccitation.volume","94"],["dc.contributor.author","Prukop, Thomas"],["dc.contributor.author","Epplen, Dirk B."],["dc.contributor.author","Nientiedt, Tobias"],["dc.contributor.author","Wichert, Sven P."],["dc.contributor.author","Fledrich, Robert"],["dc.contributor.author","Stassart, Ruth Martha"],["dc.contributor.author","Rossner, Moritz J."],["dc.contributor.author","Edgar, Julia M."],["dc.contributor.author","Werner, Hauke B."],["dc.contributor.author","Nave, Klaus-Armin"],["dc.contributor.author","Sereda, Michael W."],["dc.date.accessioned","2018-11-07T09:41:24Z"],["dc.date.available","2018-11-07T09:41:24Z"],["dc.date.issued","2014"],["dc.description.abstract","Pelizaeus-Merzbacher disease (PMD) is a severe hypomyelinating disease, characterized by ataxia, intellectual disability, epilepsy, and premature death. In the majority of cases, PMD is caused by duplication of PLP1 that is expressed in myelinating oligodendrocytes. Despite detailed knowledge of PLP1, there is presently no curative therapy for PMD. We used a Plp1 transgenic PMD mouse model to test the therapeutic effect of Lonaprisan, an antagonist of the nuclear progesterone receptor, in lowering Plp1 mRNA overexpression. We applied placebo-controlled Lonaprisan therapy to PMD mice for 10 weeks and performed the grid slip analysis to assess the clinical phenotype. Additionally, mRNA expression and protein accumulation as well as histological analysis of the central nervous system were performed. Although Plp1 mRNA levels are increased 1.8-fold in PMD mice compared to wild-type controls, daily Lonaprisan treatment reduced overexpression at the RNA level to about 1.5-fold, which was sufficient to significantly improve the poor motor phenotype. Electron microscopy confirmed a 25% increase in the number of myelinated axons in the corticospinal tract when compared to untreated PMD mice. Microarray analysis revealed the upregulation of proapoptotic genes in PMD mice that could be partially rescued by Lonaprisan treatment, which also reduced microgliosis, astrogliosis, and lymphocyte infiltration."],["dc.identifier.doi","10.1016/j.ajhg.2014.03.001"],["dc.identifier.isi","000333765300005"],["dc.identifier.pmid","24680886"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/33720"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Cell Press"],["dc.relation.issn","1537-6605"],["dc.relation.issn","0002-9297"],["dc.title","Progesterone Antagonist Therapy in a Pelizaeus-Merzbacher Mouse Model"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","111"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Neuron Glia Biology"],["dc.bibliographiccitation.lastpage","127"],["dc.bibliographiccitation.volume","4"],["dc.contributor.author","Möbius, Wiebke"],["dc.contributor.author","Patzig, Julia"],["dc.contributor.author","Nave, Klaus-Armin"],["dc.contributor.author","Werner, Hauke B."],["dc.date.accessioned","2022-03-01T11:45:38Z"],["dc.date.available","2022-03-01T11:45:38Z"],["dc.date.issued","2009"],["dc.description.abstract","The protein composition of myelin in the central nervous system (CNS) has changed at the evolutionary transition from fish to tetrapods, when a lipid-associated transmembrane-tetraspan (proteolipid protein, PLP) replaced an adhesion protein of the immunoglobulin superfamily (P0) as the most abundant constituent. Here, we review major steps of proteolipid evolution. Three paralog proteolipids (PLP/DM20/DMα, M6B/DMγ and the neuronal glycoprotein M6A/DMβ) exist in vertebrates from cartilaginous fish to mammals, and one (M6/CG7540) can be traced in invertebrate bilaterians including the planktonic copepod Calanus finmarchicus that possess a functional myelin equivalent. In fish, DMα and DMγ are coexpressed in oligodendrocytes but are not major myelin components. PLP emerged at the root of tetrapods by the acquisition of an enlarged cytoplasmic loop in the evolutionary older DMα/DM20. Transgenic experiments in mice suggest that this loop enhances the incorporation of PLP into myelin. The evolutionary recruitment of PLP as the major myelin protein provided oligodendrocytes with the competence to support long-term axonal integrity. We suggest that the molecular shift from P0 to PLP also correlates with the concentration of adhesive forces at the radial component, and that the new balance between membrane adhesion and dynamics was favorable for CNS myelination."],["dc.description.abstract","The protein composition of myelin in the central nervous system (CNS) has changed at the evolutionary transition from fish to tetrapods, when a lipid-associated transmembrane-tetraspan (proteolipid protein, PLP) replaced an adhesion protein of the immunoglobulin superfamily (P0) as the most abundant constituent. Here, we review major steps of proteolipid evolution. Three paralog proteolipids (PLP/DM20/DMα, M6B/DMγ and the neuronal glycoprotein M6A/DMβ) exist in vertebrates from cartilaginous fish to mammals, and one (M6/CG7540) can be traced in invertebrate bilaterians including the planktonic copepod Calanus finmarchicus that possess a functional myelin equivalent. In fish, DMα and DMγ are coexpressed in oligodendrocytes but are not major myelin components. PLP emerged at the root of tetrapods by the acquisition of an enlarged cytoplasmic loop in the evolutionary older DMα/DM20. Transgenic experiments in mice suggest that this loop enhances the incorporation of PLP into myelin. The evolutionary recruitment of PLP as the major myelin protein provided oligodendrocytes with the competence to support long-term axonal integrity. We suggest that the molecular shift from P0 to PLP also correlates with the concentration of adhesive forces at the radial component, and that the new balance between membrane adhesion and dynamics was favorable for CNS myelination."],["dc.identifier.doi","10.1017/S1740925X0900009X"],["dc.identifier.pii","S1740925X0900009X"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/103398"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-531"],["dc.relation.eissn","1741-0533"],["dc.relation.issn","1740-925X"],["dc.title","Phylogeny of proteolipid proteins: divergence, constraints, and the evolution of novel functions in myelination and neuroprotection"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","567"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Glia"],["dc.bibliographiccitation.lastpage","586"],["dc.bibliographiccitation.volume","61"],["dc.contributor.author","Werner, Hauke B."],["dc.contributor.author","Kraemer-Albers, Eva-Maria"],["dc.contributor.author","Strenzke, Nicola"],["dc.contributor.author","Saher, Gesine"],["dc.contributor.author","Tenzer, Stefan"],["dc.contributor.author","Ohno-Iwashita, Yoshiko"],["dc.contributor.author","Monasterio-Schrader, Patricia de"],["dc.contributor.author","Möbius, Wiebke"],["dc.contributor.author","Moser, Tobias"],["dc.contributor.author","Griffiths, Ian R."],["dc.contributor.author","Nave, Klaus-Armin"],["dc.date.accessioned","2017-09-07T11:47:44Z"],["dc.date.available","2017-09-07T11:47:44Z"],["dc.date.issued","2013"],["dc.description.abstract","The formation of central nervous system myelin by oligodendrocytes requires sterol synthesis and is associated with a significant enrichment of cholesterol in the myelin membrane. However, it is unknown how oligodendrocytes concentrate cholesterol above the level found in nonmyelin membranes. Here, we demonstrate a critical role for proteolipids in cholesterol accumulation. Mice lacking the most abundant myelin protein, proteolipid protein (PLP), are fully myelinated, but PLP-deficient myelin exhibits a reduced cholesterol content. We therefore hypothesized that high cholesterol is not essential in the myelin sheath itself but is required for an earlier step of myelin biogenesis that is fully compensated for in the absence of PLP. We also found that a PLP-homolog, glycoprotein M6B, is a myelin component of low abundance. By targeting the Gpm6b-gene and crossbreeding, we found that single-mutant mice lacking either PLP or M6B are fully myelinated, while double mutants remain severely hypomyelinated, with enhanced neurodegeneration and premature death. As both PLP and M6B bind membrane cholesterol and associate with the same cholesterol-rich oligodendroglial membrane microdomains, we suggest a model in which proteolipids facilitate myelination by sequestering cholesterol. While either proteolipid can maintain a threshold level of cholesterol in the secretory pathway that allows myelin biogenesis, lack of both proteolipids results in a severe molecular imbalance of prospective myelin membrane. However, M6B is not efficiently sorted into mature myelin, in which it is 200-fold less abundant than PLP. Thus, only PLP contributes to the high cholesterol content of myelin by association and co-transport. (c) 2013 Wiley Periodicals, Inc."],["dc.identifier.doi","10.1002/glia.22456"],["dc.identifier.gro","3142368"],["dc.identifier.isi","000314981400010"],["dc.identifier.pmid","23322581"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/7508"],["dc.notes.intern","WoS Import 2017-03-10 / Funder: BMBF; European Commission"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","0894-1491"],["dc.title","A critical role for the cholesterol-associated proteolipids PLP and M6B in myelination of the central nervous system"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","Glia"],["dc.bibliographiccitation.volume","65"],["dc.contributor.author","Kusch, Kathrin"],["dc.contributor.author","Uecker, Martin"],["dc.contributor.author","Liepold, Thomas"],["dc.contributor.author","Möbius, Wiebke"],["dc.contributor.author","Werner, Hauke B."],["dc.contributor.author","Valerius, Oliver"],["dc.contributor.author","Jahn, Olaf"],["dc.contributor.author","Nave, Klaus-Armin"],["dc.date.accessioned","2018-11-07T10:23:03Z"],["dc.date.available","2018-11-07T10:23:03Z"],["dc.date.issued","2017"],["dc.identifier.isi","000403071700600"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/42387"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Wiley"],["dc.publisher.place","Hoboken"],["dc.relation.conference","13th European Meeting on Glial Cells in Health and Disease"],["dc.relation.eventlocation","Edinburgh, Scotland"],["dc.title","SIRT2 as a genetic modifier of axonal degeneration in white matter tracts"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","4111"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Cerebral Cortex"],["dc.bibliographiccitation.lastpage","4125"],["dc.bibliographiccitation.volume","25"],["dc.contributor.author","Mita, Sakura"],["dc.contributor.author","de Monasterio-Schrader, Patricia"],["dc.contributor.author","Fünfschilling, Ursula"],["dc.contributor.author","Kawasaki, Takahiko"],["dc.contributor.author","Mizuno, Hidenobu"],["dc.contributor.author","Iwasato, Takuji"],["dc.contributor.author","Nave, Klaus-Armin"],["dc.contributor.author","Werner, Hauke B."],["dc.contributor.author","Hirata, Tatsumi"],["dc.date.accessioned","2021-06-01T10:51:16Z"],["dc.date.available","2021-06-01T10:51:16Z"],["dc.date.issued","2014"],["dc.identifier.doi","10.1093/cercor/bhu129"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/86952"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-425"],["dc.relation.eissn","1460-2199"],["dc.relation.issn","1047-3211"],["dc.title","Transcallosal Projections Require Glycoprotein M6-Dependent Neurite Growth and Guidance"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","S1047847720300587"],["dc.bibliographiccitation.firstpage","107492"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Journal of Structural Biology"],["dc.bibliographiccitation.volume","210"],["dc.contributor.author","Steyer, Anna M."],["dc.contributor.author","Ruhwedel, Torben"],["dc.contributor.author","Nardis, Christos"],["dc.contributor.author","Werner, Hauke B."],["dc.contributor.author","Nave, Klaus-Armin"],["dc.contributor.author","Möbius, Wiebke"],["dc.date.accessioned","2022-03-01T11:45:16Z"],["dc.date.available","2022-03-01T11:45:16Z"],["dc.date.issued","2020"],["dc.description.abstract","Advances in electron microscopy including improved imaging techniques and state-of-the-art detectors facilitate imaging of larger tissue volumes with electron microscopic resolution. In combination with genetic tools for the generation of mouse mutants this allows assessing the three-dimensional (3D) characteristics of pathological features in disease models. Here we revisited the axonal pathology in the central nervous system of a mouse model of spastic paraplegia type 2, the Plp−/Y mouse. Although PLP is a bona fide myelin protein, the major hallmark of the disease in both SPG2 patients and mouse models are axonal swellings comprising accumulations of numerous organelles including mitochondria, gradually leading to irreversible axonal loss. To assess the number and morphology of axonal mitochondria and the overall myelin preservation we evaluated two sample preparation techniques, chemical fixation or high-pressure freezing and freeze substitution, with respect to the objective of 3D visualization. Both methods allowed visualizing distribution and morphological details of axonal mitochondria. In Plp−/Y mice the number of mitochondria is 2-fold increased along the entire axonal length. Mitochondria are also found in the excessive organelle accumulations within axonal swellings. In addition, organelle accumulations were detected within the myelin sheath and the inner tongue. We find that 3D electron microscopy is required for a comprehensive understanding of the size, content and frequency of axonal swellings, the hallmarks of axonal pathology."],["dc.identifier.doi","10.1016/j.jsb.2020.107492"],["dc.identifier.pii","S1047847720300587"],["dc.identifier.pmid","32156581"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/103268"],["dc.identifier.url","https://for2848.gwdguser.de/literature/publications/23"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-531"],["dc.relation","FOR 2848: Architektur und Heterogenität der inneren mitochondrialen Membran auf der Nanoskala"],["dc.relation","FOR 2848 | P08: Strukturelle und funktionale Veränderungen der inneren mitochondrialen Membran axonaler Mitochondrien in vivo in einem dymyelinisierenden Mausmodell"],["dc.relation.issn","1047-8477"],["dc.relation.workinggroup","RG Möbius"],["dc.rights","CC BY-NC-ND 4.0"],["dc.rights.uri","https://www.elsevier.com/tdm/userlicense/1.0/"],["dc.title","Pathology of myelinated axons in the PLP-deficient mouse model of spastic paraplegia type 2 revealed by volume imaging using focused ion beam-scanning electron microscopy"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","6586"],["dc.bibliographiccitation.issue","29"],["dc.bibliographiccitation.journal","The Journal of Neuroscience"],["dc.bibliographiccitation.lastpage","6596"],["dc.bibliographiccitation.volume","38"],["dc.contributor.author","Weil, Marie-Theres"],["dc.contributor.author","Heibeck, Saskia"],["dc.contributor.author","Töpperwien, Mareike"],["dc.contributor.author","tom Dieck, Susanne"],["dc.contributor.author","Ruhwedel, Torben"],["dc.contributor.author","Salditt, Tim"],["dc.contributor.author","Rodicio, María C."],["dc.contributor.author","Morgan, Jennifer R."],["dc.contributor.author","Nave, Klaus-Armin"],["dc.contributor.author","Möbius, Wiebke"],["dc.contributor.author","Werner, Hauke B."],["dc.date.accessioned","2020-12-10T18:42:35Z"],["dc.date.available","2020-12-10T18:42:35Z"],["dc.date.issued","2018"],["dc.description.abstract","In the nervous system, myelination of axons enables rapid impulse conduction and is a specialized function of glial cells. Myelinating glia are the last cell type to emerge in the evolution of vertebrate nervous systems, presumably in ancient jawed vertebrates (gnathostomata) because jawless vertebrates (agnathans) lack myelin. We have hypothesized that, in these unmyelinated species, evolutionary progenitors of myelinating cells must have existed that should still be present in contemporary agnathan species. Here, we used advanced electron microscopic techniques to reveal axon-glia interactions in the sea lamprey Petromyzon marinus By quantitative assessment of the spinal cord and the peripheral lateral line nerve, we observed a marked maturation-dependent growth of axonal calibers. In peripheral nerves, all axons are ensheathed by glial cells either in bundles or, when larger than the threshold caliber of 3 μm, individually. The ensheathing glia are covered by a basal lamina and express SoxE-transcription factors, features of mammalian Remak-type Schwann cells. In larval lamprey, the ensheathment of peripheral axons leaves gaps that are closed in adults. CNS axons are also covered to a considerable extent by glial processes, which contain a high density of intermediate filaments, glycogen particles, large lipid droplets, and desmosomes, similar to mammalian astrocytes. Indeed, by in situ hybridization, these glial cells express the astrocyte marker Aldh1l1 Specimens were of unknown sex. Our observations imply that radial sorting, ensheathment, and presumably also metabolic support of axons are ancient functions of glial cells that predate the evolutionary emergence of myelin in jawed vertebrates.SIGNIFICANCE STATEMENT We used current electron microscopy techniques to examine axon-glia units in a nonmyelinated vertebrate species, the sea lamprey. In the PNS, lamprey axons are fully ensheathed either individually or in bundles by cells ortholog to Schwann cells. In the CNS, axons associate with astrocyte orthologs, which contain glycogen and lipid droplets. We suggest that ensheathment, radial sorting, and metabolic support of axons by glial cells predate the evolutionary emergence of myelin in ancient jawed vertebrates."],["dc.identifier.doi","10.1523/JNEUROSCI.1034-18.2018"],["dc.identifier.eissn","1529-2401"],["dc.identifier.issn","0270-6474"],["dc.identifier.pmid","29941446"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/78012"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.relation.eissn","1529-2401"],["dc.relation.issn","0270-6474"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)"],["dc.subject.gro","biomedical tomography"],["dc.title","Axonal Ensheathment in the Nervous System of Lamprey: Implications for the Evolution of Myelinating Glia"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]