Cited by 303Neuroinflammation and Neurodegeneration MechanismsMultiple Sclerosis Research StudiesNeurological Disease Mechanisms and Treatments

Microglia in Health and Disease

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Ransohoff, Richard M., Khoury, Joseph El·2016·Cold Spring Harbor Perspectives in Biology

Abstract

Microglia, the major myeloid cells of the central nervous system (CNS) are implicated in physiologic processes and in the pathogenesis of several CNS disorders. Since their initial description early in the 20th century, our ability to identify and isolate microglia has significantly improved and new research is providing insight into the functions of these cells in sickness and in health. Here, we review recent advances in our understanding of the role of microglia in physiological and pathological processes of the CNS with a focus on multiple sclerosis and Alzheimer's disease. Because of the prominent roles CX3CR1 and its ligand fractalkine played in bringing about these advances, we discuss the physiological and pathological roles of microglia as viewed from the CX3CR1-fractalkine perspective, providing a unique viewpoint. Based on the most recent studies of molecular profiling of microglia, we also propose a molecular and functional definition of microglia that incorporates the properties attributed to these cells in recent years.

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Crossref · 10.1101/cshperspect.a020560

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  • Microglia are the principal resident immune cells of the brain and participate in homeostasis and host defense against pathogens and CNS disorders.

    “They are the principal resident immune cells of the brain and are involved in homeostasis and in host defense against pathogens and CNS disorders10,11.”

    From Microglia in neurodegeneration (2018) · cites this paper as [11]

  • Targeted deletion of TAK1 in microglia in EAE reduced CNS inflammation and axonal and myelin damage via cell-autonomous inhibition of NF-κB, JNK, and ERK1/2.

    “Targeted deletion of the transforming growth factor (TGF)-β-activated kinase 1 in microglia in EAE reduced CNS inflammation and axonal and myelin damage by cell-autonomous inhibition of the NF-κB, JNK, and ERK1/2 pathways11.”

    From Microglia in neurodegeneration (2018) · cites this paper as [11]

  • Inflammation mediated by microglia can harm the brain.

    “Microglia mediated inflammation can have deleterious consequences for the brain and much evidence indicates that microglial activation contributes to neurodegenerative disease such as AD, PD and ALD 40,41.”
  • Microglial activation contributes to neurodegenerative diseases such as AD, PD, and ALD.

    “Microglia mediated inflammation can have deleterious consequences for the brain and much evidence indicates that microglial activation contributes to neurodegenerative disease such as AD, PD and ALD 40,41.”
  • Fractalkine is released by neurons and its receptor is expressed by microglia, constituting a neuron-microglial signaling system.

    “Fractalkine, involved in indirect neuroprotection, is released by neurons and the receptor is expressed by microglia, their interactions constituting a neuron-microglial signaling system (Ransohoff and El Khoury, 2015).”

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Authors
Ransohoff, R. M., & Khoury, J. E.
Affiliations
Cleveland Clinic (US)
Venue
Cold Spring Harbor Perspectives in Biology
Published
2015-09-09
Volume
8
Issue
1
Pages
a020560
ISSN
1943-0264 (ISSN-L)
OpenAlex
W2203955786
Cited by
303
References
104
Citations by year
2026: 11 · 2025: 14 · 2024: 28 · 2023: 24 · 2022: 35 · 2021: 49 · 2020: 43 · 2019: 26 · 2018: 22 · 2017: 30 · 2016: 18 · 2015: 3
Type
posted content
Language
en
Open access
Locations
  • Cold Spring Harbor Perspectives in Biology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute on Aging (RF1AG051506)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
microglia, central nervous system, multiple sclerosis, Alzheimer's disease, CX3CR1, fractalkine, neuroinflammation, myeloid cells
MeSH terms
CX3C Chemokine Receptor 1, Alzheimer Disease, Central Nervous System Diseases, Humans, Multiple Sclerosis, Signal Transduction, Microglia, Receptors, Chemokine, Chemokine CX3CL1

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