Cited by 221Extracellular vesicles in diseaseNeuroinflammation and Neurodegeneration MechanismsCellular transport and secretion

Serotonin stimulates secretion of exosomes from microglia cells

Open access
Glebov, Konstantin, Löchner, Marie, Jabs, Ronald, Lau, Thorsten, Merkel, Olaf, Schloss, Patrick, Steinhäuser, Christian, Walter, Jochen·2015·Glia

Abstract

Microglia are resident immune cells in the brain and exert important functions in the regulation of inflammatory processes during infection or cellular damage. Upon activation, microglia undergo complex morphological and functional transitions, including increased motility, phagocytosis and cytokine secretion. Recent findings indicate that exosomes, small vesicles that derive from fusion of multivesicular bodies with the plasma membrane, are involved in secretion of certain cytokines. The presence of specific receptors on the surface of microglia suggests communication with neurons by neurotransmitters. Here, we demonstrate expression of serotonin receptors, including 5-HT2a,b and 5-HT4 in microglial cells and their functional involvement in the modulation of exosome release by serotonin. Our data demonstrate the involvement of cAMP and Ca(2+) dependent signaling pathways in the regulation of exosome secretion. Co-culture of microglia with embryonic stem cell-derived serotonergic neurons further demonstrated functional signaling between neurons and microglia. Together, these data provide evidence for neurotransmitter-dependent signaling pathways in microglial cells that regulate exosome release.

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Crossref · 10.1002/glia.22772

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43 of 43 references verified0 citation errors · 0 not checkable

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  • 90% of serotonin required for the regulation of mood, behavior, sleep, and several other functions within the CNS and GI tract is produced in the gut.

    “Studies have demonstrated that 90% of serotonin required for the regulation of mood, behavior, sleep, and several other functions within the CNS and GI tract is produced in the gut.”

    From Microbiome–microglia connections via the gut–brain axis (2019) · cites this paper as Glebov et al., 2015

  • Binding of serotonin to 5-HT receptors on microglia induces release of cytokine-carrying exosomes, providing another mechanism for gut-induced modulation of neuroinflammation.

    “Binding of serotonin to 5-HT receptors on microglia induces release of cytokine-carrying exosomes, providing another mechanism for gut-induced modulation of neuroinflammation (Glebov et al., 2015).”

    From Microbiome–microglia connections via the gut–brain axis (2019) · cites this paper as Glebov et al., 2015

  • Binding of serotonin to 5-HT receptors on microglia induces the release of cytokine-carrying exosomes, providing a mechanism for gut-induced modulation of neuroinflammation.

    “Binding of serotonin to 5-HT receptors on microglia induces the release of cytokine-carrying exosomes, providing another mechanism for gut-induced modulation of neuroinflammation (88).”

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Authors
Glebov, K., Löchner, M., Jabs, R., Lau, T., Merkel, O., Schloss, P., Steinhäuser, C., & Walter, J.
Affiliations
  • University of Bonn (DE)
  • Heidelberg University (DE)
Corresponding author
Walter, Jochen
Venue
Glia
Publisher
Wiley
Published
2014-12
Volume
63
Issue
4
Pages
626-634
ISSN
  • 0894-1491 (ISSN-L)
  • 1098-1136
OpenAlex
W2118103827
Cited by
221
References
43
Citations by year
2026: 13 · 2025: 19 · 2024: 20 · 2023: 22 · 2022: 24 · 2021: 33 · 2020: 24 · 2019: 17 · 2018: 14 · 2017: 11 · 2016: 14 · 2015: 10
FWCI
4.78
Type
journal article
Language
en
Open access
Locations
  • Glia (publishedVersion)
  • PubMed (publishedVersion)
  • PEARL (University of Plymouth) (submittedVersion)
Funders
  • Deutsche Forschungsgemeinschaft (WA1477/4, SFB636, KFO177, STE552/3, SFB645)
  • European Commission (EuroEpinomics)
  • BONFOR (Medical Faculty Universiy Bonn (O-129.0100)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
Keywords
serotonin, exosome secretion, microglia, serotonin receptors, 5-HT2A receptor, 5-HT2B receptor, 5-HT4 receptor, cAMP signaling, calcium signaling, neuron-microglia communication, serotonergic neurons, embryonic stem cell-derived neurons, cytokine production, neuroinflammation
MeSH terms
Animals, Cell Line, Neurons, Serotonin, Stem Cells, Signal Transduction, Microglia, Coculture Techniques, Receptor, Serotonin, 5-HT2A, Receptor, Serotonin, 5-HT2B, Receptors, Serotonin, 5-HT4, Mice, Exosomes

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