Cited by 108Neuroinflammation and Neurodegeneration MechanismsMultiple Sclerosis Research StudiesImmune cells in cancer

Classically and alternatively activated bone marrow derived macrophages differ in cytoskeletal functions and migration towards specific CNS cell types

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Vereyken, Elly JF, Heijnen, Priscilla DAM, Baron, Wia, de Vries, Elga HE, Dijkstra, Christine D, Teunissen, Charlotte E·2011·Journal of Neuroinflammation

Abstract

Background: Macrophages play an important role in neuroinflammatory diseases such as multiple sclerosis (MS) and spinal cord injury (SCI), being involved in both damage and repair. The divergent effects of macrophages might be explained by their different activation status: classically activated (CA/M1), pro-inflammatory, macrophages and alternatively activated (AA/M2), growth promoting, macrophages. Little is known about the effect of macrophages with these phenotypes in the central nervous system (CNS) and how they influence pathogenesis. The aim of this study was therefore to determine the characteristics of these phenotypically different macrophages in the context of the CNS in an in vitro setting. Results: Here we show that bone marrow derived CA and AA macrophages have a distinct migratory capacity towards medium conditioned by various cell types of the CNS. AA macrophages were preferentially attracted by the low weight (< 10 kD) fraction of neuronal conditioned medium, while CA macrophages were attracted in higher numbers by astrocyte- and oligodendrocyte conditioned medium. Intrinsic motility was twice as high in AA macrophages compared to CA macrophages. The adhesion to extracellular matrix molecules (ECM) was significantly enhanced in CA macrophages compared to control and AA macrophages. The actin cytoskeleton was differentially organized between CA and AA macrophages, possibly due to greater activity of the GTPases RhoA and Rac in CA macrophages. Phagocytosis of myelin and neuronal fragments was increased in CA macrophages compared to AA macrophages. The increase in myelin phagocytosis was associated with higher expression of CR3/MAC-1 in CA macrophages. Conclusion: In conclusion, since AA macrophages are more motile and are attracted by NCM, they are prone to migrate towards neurons in the CNS. CA macrophages have a lower motility and a stronger adhesion to ECM. In neuroinflammatory diseases the restricted migration and motility of CA macrophages might limit lesion size due to bystander damage.

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Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Pro-inflammatory M1 macrophages appear large and round-shaped, while anti-inflammatory M2 macrophages show an elongated shape.

    “Previous studies indicated that pro-inflammatory M1 macrophages appeared large, round-shape morphology, while anti-inflammatory M2 macrophages showed elongated shape [49, 50].”

    From A tailored bioactive 3D porous poly(lactic-acid)-exosome scaffold with osteo-immunomodulatory and osteogenic differentiation properties (2022) · cites this paper as [50]

    The Results (Actin cytoskeleton of CA and AA macrophages, Figure 4; page not provided) describe CA/M1 macrophages as rounded and AA/M2 macrophages as elongated. The Discussion repeats this distinction, but our copy does not describe the M1 cells as large. (LLM, conf=0.86)

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  1. van der Laan LJ Ruuls SR Weber KS Lodder IJ Dopp EA Dijkstra CD Macrophage phagocytosis of myelin in vitro determined by flow cytometry: phagocytosis is mediated by CR3 and induces production of tumor necrosis factor-alpha and nitric oxide J Neuroimmunol 1996 70 145 152 10.1016/S0165-5728(96)00110-5 8898723 · DOI

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Authors
Vereyken, E. J., Heijnen, P. D., Baron, W., de Vries, E. H., Dijkstra, C. D., & Teunissen, C. E.
Affiliations
  • Amsterdam UMC Location Vrije Universiteit Amsterdam (NL)
  • University Medical Center Groningen (NL)
Corresponding author
Dijkstra, Christine D
Venue
Journal of Neuroinflammation
Published
2011-05-26
Volume
8
Issue
1
Pages
58-58
ISSN
1742-2094 (ISSN-L)
OpenAlex
W2165155335
Cited by
108
References
85
Citations by year
2026: 6 · 2025: 5 · 2024: 5 · 2023: 11 · 2022: 6 · 2021: 11 · 2020: 8 · 2019: 5 · 2018: 8 · 2017: 7 · 2016: 5 · 2015: 7 · 2014: 9 · 2013: 6 · 2012: 6
FWCI
4.06
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of Neuroinflammation (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion, other-oa)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (publishedVersion, cc-by)
  • Digital Academic REpository of VU University Amsterdam (Vrije Universiteit Amsterdam) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Pure Amsterdam UMC (submittedVersion, other-oa)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion, cc-by)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
Funders
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (016.056.024)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
Keywords
macrophage polarization, M1 macrophages, M2 macrophages, bone marrow-derived macrophages, macrophage migration, conditioned medium, actin cytoskeleton, RhoA, Rac GTPase, extracellular matrix adhesion, phagocytosis, myelin phagocytosis, astrocytes, oligodendrocytes, neurons, neuroinflammation, multiple sclerosis, spinal cord injury
MeSH terms
Actins, Animals, Cell Movement, Cells, Cultured, Central Nervous System, Cytoskeleton, Flavonoids, Macrophages, Mice, Inbred C57BL, Myelin Sheath, Neuroglia, Neurons, Phagocytosis, Phenotype, Culture Media, Conditioned, Mice

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