Cited by 120Neuroinflammation and Neurodegeneration MechanismsImmune cells in cancerInflammasome and immune disorders

Loss of IL-10 Promotes Differentiation of Microglia to a M1 Phenotype

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Laffer, Björn, Bauer, Dirk, Wasmuth, Susanne, Busch, Martin, Jalilvand, Tida Viola, Thanos, Solon, Meyer zu Hörste, Gerd, Loser, Karin +3 more·2019·Frontiers in Cellular Neuroscience

Abstract

Microglia represent the primary resident immune cells of the central nervous system (CNS) and modulate local immune responses. Depending on their physiological functions, microglia can be classified into pro- (M1) and anti-inflammatory (M2) phenotype. Interleukin (IL)-10 is an important modulator of neuronal homeostasis, with anti-inflammatory and neuroprotective functions, and can be released by microglia. Here, we investigated how IL-10 deficiency affected the M1/2 polarization of primary microglia upon lipopolysaccharide (LPS) stimulation in vitro. Microglia phenotypes were analyzed via flow cytometry. Cytokine and chemokine secretion were examined by ELISA and bead-based multiplex LEGENDplex™. Our results showed that genetic depletion of IL-10 led to elevated M1 like phenotype (CD86+CD206-) under pro-inflammatory conditions associated with increased frequency of IL-6+, TNF-α+ cells and enhanced release of several pro-inflammatory chemokines. Absence of IL-10 led to an attenuated M2 like phenotype (CD86-CD206+) and a reduced secretion of TGF-β1 upon LPS stimulation. In conclusion, IL-10 deficiency may promote the polarisation of microglia into M1-prone phenotype under pro-inflammatory conditions.

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Authors
Laffer, B., Bauer, D., Wasmuth, S., Busch, M., Jalilvand, T. V., Thanos, S., Meyer zu Hörste, G., Loser, K., Langmann, T., Heiligenhaus, A., & Kasper, M.
Affiliations
  • St. Franziskus Hospital (DE)
  • University of Münster (DE)
  • University of Cologne (DE)
Corresponding author
Kasper, Maren
Venue
Frontiers in Cellular Neuroscience
Published
2019-10-09
Volume
13
Pages
430-430
ISSN
1662-5102 (ISSN-L)
OpenAlex
W2979963107
Cited by
120
References
115
Citations by year
2026: 21 · 2025: 16 · 2024: 14 · 2023: 16 · 2022: 16 · 2021: 20 · 2020: 16
FWCI
5.72
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Cellular Neuroscience (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Kölner Universitäts PublikationsServer (Universität zu Köln) (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
Keywords
IL-10, microglia, M1 macrophage phenotype, M2 phenotype, microglial polarization, lipopolysaccharide, IL-10 deficiency, CD86, CD206, inflammatory cytokines, TNF-α, interleukin-6, TGF-β1, chemokines, neuroinflammation

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