Cited by 359Neuroinflammation and Neurodegeneration MechanismsIL-33, ST2, and ILC PathwaysTraumatic Brain Injury and Neurovascular Disturbances

The Glia-Derived Alarmin IL-33 Orchestrates the Immune Response and Promotes Recovery following CNS Injury

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Gadani, Sachin P., Walsh, James T., Smirnov, Igor, Zheng, Jingjing, Kipnis, Jonathan·2015·Neuron

Abstract

Inflammation is a prominent feature of CNS injury that heavily influences neuronal survival, yet the signals that initiate and control it remain poorly understood. Here we identify the nuclear alarmin, interleukin (IL)-33, as an important regulator of the innate immune response after CNS injury. IL-33 is expressed widely throughout the healthy brain and is concentrated in white mater due to predominant expression in post-mitotic oligodendrocytes. IL-33 is released immediately after CNS injury from damaged oligodendrocytes, acting on local astrocytes and microglia to induce chemokines critical for monocyte recruitment. Mice lacking IL-33 have impaired recovery after CNS injury, which is associated with reduced myeloid cell infiltrates and decreased induction of M2 genes at the injury site. These results demonstrate a novel molecular mediator contributing to immune cell recruitment to the injured CNS and may lead to new therapeutic insights in CNS injury and neurodegenerative diseases.

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Crossref · 10.1016/j.neuron.2015.01.013

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  • Microglia and astrocytes coordinate their functions in many ways, both in the healthy and diseased brain.

    “However, recent data indicate that microglia and astrocytes coordinate their functions in many ways, both in the healthy and diseased brain [14–21].”

    From Crosstalk between astrocytes and microglia results in increased degradation of α-synuclein and amyloid-β aggregates (2021) · cites this paper as [15]

    The Introduction reports that IL-33 released after CNS injury acts on both astrocytes and microglia to induce chemokines, supporting an example of their coordinated response to injury. It reports IL-33 expression in the healthy brain, but not coordinated functions there, and does not establish that the two cell types coordinate in many ways. No page number is available in our copy. (LLM, conf=0.84)

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4 of the 34 references couldn’t be matched to a known paper.

Research works printed but not linked: 1

  1. Levkovitch-Verbin H, Harris-Cerruti C, Groner Y, Wheeler LA, Schwartz M, and Yoles E. (2000). RGC death in mice after optic nerve crush injury: oxidative stress and neuroprotection. Invest. Ophthalmol. Vis. Sci 41, 4169– 4174. 11095611

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Authors
Gadani, S. P., Walsh, J. T., Smirnov, I., Zheng, J., & Kipnis, J.
Affiliations
  • University of Virginia (US)
  • University of Virginia Medical Center (US)
Corresponding author
  • Gadani, Sachin P.
  • Kipnis, Jonathan
Venue
Neuron
Publisher
Elsevier BV
Published
2015-02
Volume
85
Issue
4
Pages
703-709
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2033591334
Cited by
359
References
34
Citations by year
2026: 20 · 2025: 33 · 2024: 28 · 2023: 35 · 2022: 35 · 2021: 46 · 2020: 39 · 2019: 32 · 2018: 37 · 2017: 24 · 2016: 18 · 2015: 11
FWCI
16.03
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
  • Life Sciences › Immunology and Microbiology › Immunology › IL-33, ST2, and ILC Pathways
  • Health Sciences › Medicine › Neurology › Traumatic Brain Injury and Neurovascular Disturbances
Keywords
IL-33, central nervous system injury, neuroinflammation, oligodendrocytes, astrocytes, microglia, monocyte recruitment, chemokines, myeloid cell infiltration, M2 macrophages, functional recovery, innate immune response
MeSH terms
Interleukin-33, Interleukin-1 Receptor-Like 1 Protein, CX3C Chemokine Receptor 1, Animals, Animals, Newborn, Cells, Cultured, Central Nervous System Diseases, Disease Models, Animal, Female, Gene Expression Regulation, Interleukins, Male, Mice, Inbred C57BL, Mice, Transgenic, Nerve Tissue Proteins, Neuroglia, Neurons, Retinal Ganglion Cells, Receptors, Interleukin, Ki-67 Antigen, Receptors, Chemokine, Recovery of Function, Green Fluorescent Proteins, Mice, In Vitro Techniques

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