Cited by 63Neurogenesis and neuroplasticity mechanismsMultiple Sclerosis Research StudiesNeuroinflammation and Neurodegeneration Mechanisms

Myelin replacement triggered by single-cell demyelination in mouse cortex

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Snaidero, Nicolas, Schifferer, Martina, Mezydlo, Aleksandra, Zalc, Bernard, Kerschensteiner, Martin, Misgeld, Thomas·2020·Nature Communications

Abstract

Myelin, rather than being a static insulator of axons, is emerging as an active participant in circuit plasticity. This requires precise regulation of oligodendrocyte numbers and myelination patterns. Here, by devising a laser ablation approach of single oligodendrocytes, followed by in vivo imaging and correlated ultrastructural reconstructions, we report that in mouse cortex demyelination as subtle as the loss of a single oligodendrocyte can trigger robust cell replacement and remyelination timed by myelin breakdown. This results in reliable reestablishment of the original myelin pattern along continuously myelinated axons, while in parallel, patchy isolated internodes emerge on previously unmyelinated axons. Therefore, in mammalian cortex, internodes along partially myelinated cortical axons are typically not reestablished, suggesting that the cues that guide patchy myelination are not preserved through cycles of de- and remyelination. In contrast, myelin sheaths forming continuous patterns show remarkable homeostatic resilience and remyelinate with single axon precision.

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Crossref · 10.1038/s41467-020-18632-0

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  • The efficacy of remyelination depends on multiple factors such as age, disease duration and lesion location.

    “The efficacy of remyelination has been shown to depend on multiple factors such as, age, disease duration and lesion location.”

    From BCAS1-positive oligodendrocytes enable efficient cortical remyelination in multiple sclerosis (2025) · cites this paper as [10]

    The Results section (‘Remyelination is instructed by pre-ablation myelin pattern’; page not provided) shows that cortical remyelination efficiency varies with the pre-existing myelin pattern in mice. It does not show that efficiency depends on age, disease duration, or lesion location, the factors named in the claim. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • Previous experimental and human work suggests that g-ratios are higher and internodes shorter in demyelinated cortex than in normal cortex, without directly associating newly formed internodes to BCAS1 expression.

    “Previous experimental and human work on demyelinated cortex suggests that g-ratios are indeed higher and internodes shorter than in NC, however, without directly associating newly formed internodes to the expression of BCAS1.10,17”

    From BCAS1-positive oligodendrocytes enable efficient cortical remyelination in multiple sclerosis (2025) · cites this paper as [10]

    In Results (page unavailable), newly formed internodes in the mouse cortex had thinner myelin and higher g-ratios than pre-existing internodes. The Discussion (page unavailable) says spontaneously added internodes appeared shorter than pre-existing ones, but Results also says restored internodes were longer than de novo internodes. This paper does not establish the human comparison or directly associate internodes with BCAS1 expression. (LLM, conf=0.85)

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  1. [43]Jung, S. et al. Analysis of fractalkine receptor CX3CR1 function by targeted deletion and green fluorescent protein reporter gene insertion. Mol. Cell Biol.20, 4106–4114 (2000). PMC85780 10805752

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Authors
Snaidero, N., Schifferer, M., Mezydlo, A., Zalc, B., Kerschensteiner, M., & Misgeld, T.
Affiliations
  • German Center for Neurodegenerative Diseases (DE)
  • Centre National de la Recherche Scientifique (FR)
  • Munich Cluster for Systems Neurology (DE)
Corresponding author
Snaidero, Nicolas
Venue
Nature Communications
Published
2020-09-29
Volume
11
Issue
1
Pages
4901-4901
ISSN
2041-1723 (ISSN-L)
OpenAlex
W3091095424
Cited by
63
References
83
Citations by year
2026: 10 · 2025: 9 · 2024: 17 · 2023: 9 · 2022: 7 · 2021: 9 · 2020: 2
FWCI
2.66
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Open access LMU (Ludwid Maxmilian's Universitat Munchen) (submittedVersion, cc-by)
  • mediaTUM (Technical University of Munich) (submittedVersion, other-oa)
  • mediaTUM – the media and publications repository of the Technical University Munich (Technical University Munich) (submittedVersion)
  • DZNE Pub (submittedVersion, other-oa)
  • GoeScholar The Publication Server of the Georg-August-Universität Göttingen (Georg-August-Universität Göttingen) (submittedVersion, cc-by)
Funders
  • European Commission (390857198, 2007–2013, HORIZON2020, 825759, 408885537, FP/2007/2013)
  • Deutsche Forschungsgemeinschaft (FOR2879, 426715780, TRR274/1 2020, EXC 2145, CRC 870, FP/2007-2013, TRR-274, and Z01, EXC114, 774/5‐1, 390857198, TRR128, Ke 774/5-1/Mi 694/7-1, Mi694/7‐1, 825759, projects B02, CIPSM EXC114, Project Z01, 408885537, Mi 694/8-1)
  • Agence Nationale de la Recherche (CRC870, FP/2007-2013, ANR-11-INBS-0011, ANR-18-CE92-0004)
  • Bundesministerium für Bildung und Forschung (825759, EXC 114)
  • Deutsches Zentrum für Neurodegenerative Erkrankungen
  • Deutschen Multiple Sklerose Gesellschaft
  • FP7 Ideas: European Research Council (616791, 310932)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
remyelination, demyelination, oligodendrocytes, cortical axons, internodes, circuit plasticity, mouse cortex
MeSH terms
Remyelination, Animals, Axons, Cerebral Cortex, Female, Male, Mice, Inbred C57BL, Myelin Sheath, Oligodendroglia, Mice

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