Cited by 178Multiple Sclerosis Research StudiesNeuroinflammation and Neurodegeneration MechanismsNeurogenesis and neuroplasticity mechanisms

The DOI matches its Crossref record; 66 of the 66 references it cites were found in a registry or an index.

Activation Status of Human Microglia Is Dependent on Lesion Formation Stage and Remyelination in Multiple Sclerosis

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Abstract

Similar to macrophages, microglia adopt diverse activation states and contribute to repair and tissue damage in multiple sclerosis. Using reverse transcription-quantitative polymerase chain reaction and immunohistochemistry, we show that in vitro M1-polarized (proinflammatory) human adult microglia express the distinctive markers CD74, CD40, CD86, and CCR7, whereas M2 (anti-inflammatory) microglia express mannose receptor and the anti-inflammatory cytokine CCL22. The expression of these markers was assessed in clusters of activated microglia in normal-appearing white matter (preactive lesions) and areas of remyelination, representing reparative multiple sclerosis lesions. We show that activated microglia in preactive and remyelinating lesions express CD74, CD40, CD86, and the M2 markers CCL22 and CD209, but not mannose receptor. To examine whether this intermediate microglia profile is static or dynamic and thus susceptible to changes in the microenvironment, we polarized microglia into M1 or M2 phenotype in vitro and then subsequently treated them with the opposing polarization regimen. These studies revealed that expression of CD40, CXCL10, and mannose receptor is dynamic and that microglia, like macrophages, can switch between M1 and M2 phenotypic profiles. Taken together, our data define the differential activation states of microglia during lesion development in multiple sclerosis-affected CNS tissues and underscore the plasticity of human adult microglia in vitro.

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Metadata

Authors
Peferoen, L. A. N., Vogel, D. Y. S., Ummenthum, K., Breur, M., Heijnen, P. D. A. M., Gerritsen, W. H., Peferoen-Baert, R. M. B., van der Valk, P., Dijkstra, C. D., & Amor, S.
Affiliations
  • Queen Mary University of London (GB)
  • Amsterdam UMC Location Vrije Universiteit Amsterdam (NL)
Corresponding author
Amor, Sandra
Venue
Journal of Neuropathology & Experimental Neurology
Published
2015-01
Volume
74
Issue
1
Pages
48-63
ISSN
  • 0022-3069 (ISSN-L)
  • 1554-6578
OpenAlex
W2079198405
Cited by
178
References
66
Citations by year
2026: 7 · 2025: 6 · 2024: 10 · 2023: 11 · 2022: 19 · 2021: 11 · 2020: 18 · 2019: 24 · 2018: 13 · 2017: 17 · 2016: 26 · 2015: 15
FWCI
14.38
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuropathology & Experimental Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion, other-oa)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Topics
  • Health Sciences › Medicine › Clinical Neurology › Multiple Sclerosis Research Studies
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
microglial activation, multiple sclerosis, remyelination, macrophage polarization, microglial plasticity, CD40, CD74, CCL22, CD206, CD86, CXCL10, normal-appearing white matter, lesion progression, microglial markers
MeSH terms
Aged, Aged, 80 and over, Histocompatibility Antigens Class II, Brain, Cell Differentiation, Cells, Cultured, Female, Flow Cytometry, Humans, Macrophages, Male, Middle Aged, Multiple Sclerosis, RNA, Messenger, Antigens, CD, Cytokines, Microglia, Statistics, Nonparametric, Myelin Proteolipid Protein, Transcriptome

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