Cited by 122Neuroinflammation and Neurodegeneration MechanismsNeurogenesis and neuroplasticity mechanismsTryptophan and brain disorders

Environment matters: microglia function and dysfunction in a changing world

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Hanamsagar, Richa, Bilbo, Staci D·2017·Current Opinion in Neurobiology

Abstract

The immune system is our interface with the environment, and immune molecules such as cytokines and chemokines and the cells that produce them within the brain, notably microglia, are critical for normal brain development. This recognition has in recent years led to the working hypothesis that inflammatory events during pregnancy or the early postnatal period, for example, in response to infection, may disrupt the normal developmental trajectory of microglia and consequently their interactions with neurons, thereby contributing to the risk for neurological disorders. The current article outlines recent findings on the impact of diverse, pervasive environmental challenges, beyond infection, including air pollution and maternal stress; and their impact on microglial development and its broad implications for neural pathologies.

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Crossref · 10.1016/j.conb.2017.10.007

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  • Microglia are macrophage-like cells that comprise 10-15% of the CNS and mediate diverse functions ranging from innate immunity and phagocytosis to synaptic pruning and the regulation of synaptic activity.

    “Microglia are macrophage-like cells that comprise 10–15% of the CNS, and mediate diverse functions ranging from innate immunity and phagocytosis to synaptic pruning and the regulation of synaptic activity [416,417].”

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  1. [86]Diz-Chaves Y Pernía O Carrero P Garcia-Segura L Prenatal stress causes alterations in the morphology of microglia and the inflammatory response of the hippocampus of adult female mice Journal of Neuroinflammation 2012 9 71 22520439 PMC3409032
  2. [87]Zhao Q Xie X Fan Y Zhang J Jiang W Wu X Yan S Chen Y Peng C You Z Phenotypic dysregulation of microglial activation in young offspring rats with maternal sleep deprivation-induced cognitive impairment Sci Rep 2015 5 9513 25830666 PMC5381687

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Authors
Hanamsagar, R., & Bilbo, S. D.
Affiliations
Harvard University (US)
Corresponding author
Bilbo, Staci D
Venue
Current Opinion in Neurobiology
Publisher
Elsevier BV
Published
2017-12
Volume
47
Pages
146-155
ISSN
0959-4388 (ISSN-L)
OpenAlex
W2767521151
Cited by
122
References
91
Citations by year
2026: 9 · 2025: 6 · 2024: 10 · 2023: 10 · 2022: 15 · 2021: 19 · 2020: 25 · 2019: 15 · 2018: 11 · 2017: 2
FWCI
1.39
Type
journal article
Language
en
Open access
Locations
  • Current Opinion in Neurobiology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Mental Health (R01MH101183, R01MH083698)
  • National Institute of Environmental Health Sciences (R01ES025549)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
Keywords
microglia, microglial development, environmental influences on brain development, neuroinflammation, prenatal infection, maternal stress, air pollution, cytokines, chemokines, microglia-neuron interaction, neurological disorders, developmental programming
MeSH terms
Animals, Brain, Environmental Exposure, Female, Humans, Pregnancy, Pregnancy Complications, Prenatal Exposure Delayed Effects, Microglia

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