Cited by 853Neuroinflammation and Neurodegeneration MechanismsPhagocytosis and Immune RegulationAutophagy in Disease and Therapy

Microglial Phagocytosis of Live Neurons

Brown, Guy C., Neher, Jonas J.·2014·Nature Reviews Neuroscience

Abstract

Microglia, the brain's professional phagocytes, can remove dead and dying neurons as well as synapses and the processes of live neurons. However, we and others have recently shown that microglia can also execute neuronal death by phagocytosing stressed-but-viable neurons - a process that we have termed phagoptosis. In this Progress article, we discuss evidence suggesting that phagoptosis may contribute to neuronal loss during brain development, inflammation, ischaemia and neurodegeneration.

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Crossref · 10.1038/nrn3710

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79 of 79 references verified0 citation errors · 0 not checkable

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  • During diseases or inflammatory challenges, microglia have been shown to phagocytize endangered or damaged but still viable cells, playing a role in accelerating degeneration.

    “However, during diseases or inflammatory challenges, microglia have been shown to phagocytize endangered or damaged but still viable cells, playing a role in accelerating degeneration [77].”
  • TREM2 may enable the phagocytosis by microglia of stressed but viable neurons (phagoptosis).

    “The latter study suggested that TREM2 may enable the phagocytosis by microglia of stressed but viable neurons, a process termed phagoptosis (Brown and Neher, 2014).”

    From Microglia in Alzheimer’s disease (2018) · cites this paper as Brown and Neher, 2014

  • Inflammatory stress and sub-lethal pathological insults can induce stressed-but-viable neurons to expose reversible eat-me signals such as phosphatidylserine or calreticulin, causing the neurons to be phagocytosed and killed by activated microglia via phagoptosis.

    “inflammatory stress and sub-lethal pathological insults can induce stressed-but-viable neurons to expose reversible ‘eat-me’ signals such as phosphatidylserine or calreticulin, causing the neurons to be phagocytosed and killed by activated microglia via a process called phagoptosis8”
  • In their state of high activation, microglial cells acquire an amoeboid morphology and act like macrophages, engulfing debris.

    “In their state of high activation, microglial cells acquire an amoeboid morphology and act like macrophages, engulfing debris (Brown and Neher, 2014).”

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Authors
Brown, G. C., & Neher, J. J.
Affiliations
  • University of Cambridge (GB)
  • German Center for Neurodegenerative Diseases (DE)
Corresponding author
Brown, Guy C.
Venue
Nature Reviews Neuroscience
Published
2014-03-20
Volume
15
Issue
4
Pages
209-216
ISSN
  • 1471-003X (ISSN-L)
  • 1471-0048
OpenAlex
W2027467386
Cited by
853
References
79
Citations by year
2026: 46 · 2025: 65 · 2024: 73 · 2023: 78 · 2022: 78 · 2021: 106 · 2020: 82 · 2019: 71 · 2018: 76 · 2017: 58 · 2016: 57 · 2015: 45 · 2014: 18
FWCI
4.72
Type
journal article
Language
en
Open access
closed
Locations
  • Nature reviews. Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • DZNE Pub (submittedVersion)
Funders
  • Wellcome Trust (RG50995)
  • University of Cambridge
  • National Academy of Sciences of Ukraine
  • Medical Research Council (MR/L010593/1)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Immunology and Microbiology › Immunology › Phagocytosis and Immune Regulation
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
Keywords
microglia, phagocytosis, neuronal cell death, neuronal loss, brain development, neuroinflammation, ischemia, neurodegeneration, phagocytes
MeSH terms
Animals, Humans, Neurons, Phagocytosis, Cell Death, Microglia

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