Cited by 342Neuroinflammation and Neurodegeneration MechanismsTraumatic Brain Injury and Neurovascular DisturbancesImmune Response and Inflammation

Dealing with danger in the CNS: the response of the immune system to injury

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Gadani, Sachin P., Walsh, James T., Lukens, John R., Kipnis, Jonathan·2015·Neuron

Abstract

Fighting pathogens and maintaining tissue homeostasis are prerequisites for survival. Both of these functions are upheld by the immune system, though the latter is often overlooked in the context of the CNS. The mere presence of immune cells in the CNS was long considered a hallmark of pathology, but this view has been recently challenged by studies demonstrating that immunological signaling can confer pivotal neuroprotective effects on the injured CNS. In this review, we describe the temporal sequence of immunological events that follow CNS injury. Beginning with immediate changes at the injury site, including death of neural cells and release of damage-associated molecular patterns (DAMPs), and progressing through innate and adaptive immune responses, we describe the cascade of inflammatory mediators and the implications of their post-injury effects. We conclude by proposing a revised interpretation of immune privilege in the brain, which takes beneficial neuro-immune communications into account.

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Crossref · 10.1016/j.neuron.2015.05.019

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  • Many signals expressed in this subpopulation can be highly damaging to the brain; Il1b and Tnf can cause neurotoxicity, and chemokines can attract infiltrating immune cells that exacerbate pathology.

    “Many of the signals expressed in this subpopulation can be highly damaging to the brain. For example, Il1b and Tnf can both cause neurotoxicity (Takeuchi et al., 2006; Ye et al., 2013), and infiltrating immune cells attracted by the chemokines expressed in the Ccl4+ subpopulation can exacerbate pathology (Gadani et al., 2015).”

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Authors
Gadani, S. P., Walsh, J. T., Lukens, J. R., & Kipnis, J.
Affiliations
  • University of Virginia Medical Center (US)
  • University of Virginia (US)
Corresponding author
  • Lukens, John R.
  • Kipnis, Jonathan
Venue
Neuron
Publisher
Elsevier BV
Published
2015-07
Volume
87
Issue
1
Pages
47-62
ISSN
0896-6273 (ISSN-L)
OpenAlex
W1608593799
Cited by
342
References
216
Citations by year
2026: 24 · 2025: 25 · 2024: 45 · 2023: 33 · 2022: 31 · 2021: 46 · 2020: 28 · 2019: 31 · 2018: 31 · 2017: 21 · 2016: 25 · 2015: 2
FWCI
2.10
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of General Medical Sciences (T32GM007267)
  • National Institute of Neurological Disorders and Stroke (NS061973, R01NS061973)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Neurology › Traumatic Brain Injury and Neurovascular Disturbances
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
Keywords
central nervous system injury, neuroinflammation, neuroimmunology, damage-associated molecular patterns, innate immune response, adaptive immune response, neuroprotection, immune privilege, inflammatory mediators, tissue homeostasis
MeSH terms
Brain Injuries, Brain Ischemia, Homeostasis, Humans, Neurons, Spinal Cord Injuries, Signal Transduction, Reperfusion Injury

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