Cited by 216Multiple Sclerosis Research StudiesNeurogenesis and neuroplasticity mechanismsMesenchymal stem cell research

The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.

Cortical remyelination: A new target for repair therapies in multiple sclerosis

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Abstract

OBJECTIVE: Generation and differentiation of new oligodendrocytes in demyelinated white matter is the best described repair process in the adult human brain. However, remyelinating capacity falters with age in patients with multiple sclerosis (MS). Because demyelination of cerebral cortex is extensive in brains from MS patients, we investigated the capacity of cortical lesions to remyelinate and directly compared the extent of remyelination in lesions that involve cerebral cortex and adjacent subcortical white matter. METHODS: Postmortem brain tissue from 22 patients with MS (age 27-77 years) and 6 subjects without brain disease were analyzed. Regions of cerebral cortex with reduced myelin were examined for remyelination, oligodendrocyte progenitor cells, reactive astrocytes, and molecules that inhibit remyelination. RESULTS: New oligodendrocytes that were actively forming myelin sheaths were identified in 30 of 42 remyelinated subpial cortical lesions, including lesions from 3 patients in their 70s. Oligodendrocyte progenitor cells were not decreased in demyelinated or remyelinated cortices when compared to adjacent normal-appearing cortex or controls. In demyelinated lesions involving cortex and adjacent white matter, the cortex showed greater remyelination, more actively remyelinating oligodendrocytes, and fewer reactive astrocytes. Astrocytes in the white matter, but not in cortical portions of these lesions, significantly upregulate CD44, hyaluronan, and versican, molecules that form complexes that inhibit oligodendrocyte maturation and remyelination. INTERPRETATION: Endogenous remyelination of the cerebral cortex occurs in individuals with MS regardless of disease duration or chronological age of the patient. Cortical remyelination should be considered as a primary outcome measure in future clinical trials testing remyelination therapies.

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Metadata

Authors
Chang, A., Staugaitis, S. M., Dutta, R., Batt, C. E., Easley, K. E., Chomyk, A. M., Yong, V. W., Fox, R. J., Kidd, G. J., & Trapp, B. D.
Affiliations
  • Cleveland Clinic (US)
  • University of Calgary (CA)
Corresponding author
Trapp, Bruce D.
Venue
Annals of Neurology
Publisher
Wiley
Published
2012-10-17
Volume
72
Issue
6
Pages
918-926
ISSN
  • 0364-5134 (ISSN-L)
  • 1531-8249
OpenAlex
W2061522969
Cited by
216
References
42
Citations by year
2026: 6 · 2025: 15 · 2024: 10 · 2023: 19 · 2022: 22 · 2021: 16 · 2020: 18 · 2019: 23 · 2018: 16 · 2017: 11 · 2016: 16 · 2015: 16 · 2014: 13 · 2013: 13 · 2012: 2
FWCI
10.17
Type
journal article
Language
en
Open access
Locations
  • Annals of Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Multiple Sclerosis Society
  • Cleveland Clinic
  • National Institutes of Health (UL1TR000439)
  • University of California, Davis
  • National Institute of Neurological Disorders and Stroke (NS38867, P50NS038667)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Medicine › Clinical Neurology › Multiple Sclerosis Research Studies
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Mesenchymal stem cell research
Keywords
multiple sclerosis, demyelination, oligodendrocyte precursor cells, reactive astrocytes, CD44, hyaluronic acid, versican, oligodendrocyte maturation, white matter lesions, remyelination therapy
MeSH terms
Chondroitin Sulfate Proteoglycan 4, Adult, Aged, Antigens, Cerebral Cortex, Demyelinating Diseases, Female, Glial Fibrillary Acidic Protein, Humans, Male, Middle Aged, Multiple Sclerosis, Myelin Sheath, Nerve Fibers, Myelinated, Oligodendroglia, Postmortem Changes, Proteoglycans, Regeneration, RNA, Messenger, Hyaluronan Receptors, Myelin Proteolipid Protein, Adaptor Proteins, Signal Transducing, Adult Stem Cells

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