Cited by 864Multiple Sclerosis Research StudiesNeurogenesis and neuroplasticity mechanismsMesenchymal stem cell research

Differentiation block of oligodendroglial progenitor cells as a cause for remyelination failure in chronic multiple sclerosis

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Kuhlmann, T., Miron, V., Cuo, Q., Wegner, C., Antel, J., Bruck, W.·2008·Brain

Abstract

Impaired function/differentiation of progenitor cells might provide an explanation for the limited remyelination observed in the majority of chronic multiple sclerosis lesions. Here, we establish that in the normal adult human CNS, the transcription factors Nkx2.2 and Olig2 are strongly expressed in progenitor cells while mature oligodendrocytes are characterized by low levels of Olig2 or Nkx2.2. In vitro studies confirmed the expression of Olig2 in oligodendroglial progenitor cells and mature oligodendrocytes while astrocytes, microglial cells and neurons were negative for Olig2. In early multiple sclerosis lesions, we found Olig2-positive progenitor cells throughout all lesion stages and in periplaque white matter (PPWM). The number of progenitors in PPWM was significantly increased compared with the white matter from controls. In chronic multiple sclerosis lesions progenitor cells were still present, however, in significantly lower numbers than in early multiple sclerosis lesions. A subpopulation of progenitor cells in early multiple sclerosis lesions and PPWM but not in control cases co-expressed NogoA, a marker of mature oligodendrocytes. The co-expression of these two markers suggested that these cells were maturing oligodendrocytes recently recruited from the progenitor pool. In contrast, in chronic multiple sclerosis lesions maturing progenitors were only rarely present. In summary, we provide evidence that a differentiation block of oligodendroglial progenitors is a major determinant of remyelination failure in chronic multiple sclerosis lesions.

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Crossref · 10.1093/brain/awn096

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  • Non-proliferative Nkx2.2+ precursors with a profile consistent with these cells have been observed in lesions of multiple sclerosis patients.

    “Non-proliferative Nkx2.2+ precursors with a profile consistent with these cells (Fig. S10) have been observed in lesions of multiple sclerosis patients (26).”

    From Oligodendrocyte heterogeneity in the mouse juvenile and adult central nervous system (2016) · cites this paper as [26]

    The Discussion identifies strongly Nkx2.2-positive cells as progenitors in adult human CNS. The ‘In early multiple sclerosis lesions’ section reports Olig2-positive progenitors in lesions and finds that only rare Olig2-positive cells co-express the proliferation marker Ki67. The lesion and proliferation analyses focused on Olig2, however, so they do not directly establish that the non-proliferative cells observed in lesions were Nkx2.2-positive. (LLM, conf=0.87)

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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 [14]

    The Introduction (page unavailable) contrasts remyelination in early and chronic multiple sclerosis lesions and says that, in most chronic lesions, it is absent or limited to the plaque border. This supports variation with disease stage and within a lesion, but the paper does not establish that remyelination efficacy depends on patient age or anatomical lesion location; its early–chronic comparison also does not establish disease duration as a causal factor. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • A block in oligodendrocyte differentiation is a feature of chronic MS lesions.

    “Our results showing that M2 cells are required for oligodendrocyte differentiation are of particular interest given that a block in oligodendrocyte differentiation is a feature of chronic MS lesions46.”
  • In MS lesions, OPCs are recruited but fail to differentiate into myelinating OLs.

    “In MS lesions, OPCs are recruited but fail to differentiate into myelinating OLs, suggesting that remyelination is blocked at the differentiation and remyelination stage rather than during OPC recruitment (Chang et al., 2002; Kuhlmann et al., 2008; Wolswijk, 1998).”

    From miR-219 Cooperates with miR-338 in Myelination and Promotes Myelin Repair in the CNS (2017) · cites this paper as Kuhlmann et al., 2008

  • In MS, remyelination is blocked at the differentiation/remyelination stage rather than during OPC recruitment.

    “In MS lesions, OPCs are recruited but fail to differentiate into myelinating OLs, suggesting that remyelination is blocked at the differentiation and remyelination stage rather than during OPC recruitment (Chang et al., 2002; Kuhlmann et al., 2008; Wolswijk, 1998).”

    From miR-219 Cooperates with miR-338 in Myelination and Promotes Myelin Repair in the CNS (2017) · cites this paper as Kuhlmann et al., 2008

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Research works printed but not linked: 2

  1. D'Souza SD, Alinauskas KA, Antel JP. Ciliary neurotrophic factor selec- tively protects human oligodendrocytes from tumor necrosis factor- mediated injury. J Neurosci Res 1996; 43: 289-98.
  2. Qi Y, Cai J, Wu Y, Wu R, Lee J, Fu H, et al. Control of oligodendrocyte differentiation by the Nkx2.2 homeodomain transcription factor. Development 2001; 128: 2723-33.

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Authors
Kuhlmann, T., Miron, V., Cuo, Q., Wegner, C., Antel, J., & Bruck, W.
Affiliations
Montreal Neurological Institute and Hospital (CA)
Venue
Brain
Published
2008-05-30
Volume
131
Issue
7
Pages
1749-1758
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W2062326815
Cited by
864
References
57
Citations by year
2026: 27 · 2025: 42 · 2024: 48 · 2023: 40 · 2022: 54 · 2021: 64 · 2020: 60 · 2019: 66 · 2018: 53 · 2017: 64 · 2016: 50 · 2015: 56 · 2014: 43 · 2013: 53 · 2012: 33
FWCI
26.01
Type
journal article
Language
en
Open access
Locations
  • Brain (publishedVersion)
  • PubMed (publishedVersion)
  • GoeScholar The Publication Server of the Georg-August-Universität Göttingen (Georg-August-Universität Göttingen) (submittedVersion, cc-by)
  • GoeScholar The Publication Server of the Georg-August-Universität Göttingen (Georg-August-Universität Göttingen) (submittedVersion)
Funders
  • Multiple Sclerosis Society of Canada
  • Multiple Sclerosis Society
  • European Commission (LSHM‐CT‐2005–018637)
  • Directorate for Biological Sciences
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
Keywords
multiple sclerosis, remyelination failure, Olig2, Nkx2.2, differentiation block, oligodendrocyte maturation, Nogo-A, transcription factors
MeSH terms
Oligodendrocyte Transcription Factor 2, Homeobox Protein Nkx-2.2, Adult, Cell Differentiation, Cells, Cultured, Chronic Disease, Female, Humans, Male, Multiple Sclerosis, Myelin Sheath, Nerve Regeneration, Nerve Tissue Proteins, Nuclear Proteins, Oligodendroglia, Retrospective Studies, Stem Cells, Transcription Factors, Homeodomain Proteins, Disease Progression, Zebrafish Proteins, Basic Helix-Loop-Helix Proteins

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