Cited by 209Neuroinflammation and Neurodegeneration MechanismsTryptophan and brain disordersStress Responses and Cortisol

Knockdown of Interleukin-1 Receptor Type-1 on Endothelial Cells Attenuated Stress-Induced Neuroinflammation and Prevented Anxiety-Like Behavior

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Wohleb, Eric S., Patterson, Jenna M., Sharma, Vikram, Quan, Ning, Godbout, Jonathan P., Sheridan, John F.·2014·The Journal of Neuroscience

Abstract

Interleukin-1β (IL-1β) is an inflammatory cytokine that plays a prominent role in stress-induced behavioral changes. In a model of repeated social defeat (RSD), elevated IL-1β expression in the brain was associated with recruitment of primed macrophages that were necessary for development of anxiety-like behavior. Moreover, microglia activation and anxiety-like behavior associated with RSD did not occur in IL-1 receptor type-1 knock-out (IL-1R1 KO) mice. Therefore, the objective of this study was to examine the role of IL-1 signaling in RSD-induced macrophage trafficking to the brain and anxiety-like behavior. Initial studies revealed that RSD did not increase circulating myeloid cells in IL-1R1 KO mice, resulting in limited macrophage trafficking to the brain. In addition, IL-1R1 KO bone marrow-chimera mice showed that IL-1R1 expression was essential for macrophage trafficking into the brain. To differentiate cellular mediators of stress-induced IL-1 signaling, endothelial-specific IL-1R1 knock-down (eIL-1R1kd) mice were used. Both wild-type (WT) and eIL-1R1kd mice had increased circulating monocytes, recruitment of macrophages to the brain, and altered microglia activation after RSD. Nonetheless, RSD-induced expression of IL-1β, TNF-α, and IL-6 mRNA in brain CD11b+cells was attenuated in eIL-1R1kd mice compared with WT. Moreover, anxiety-like behavior did not develop in eIL-1R1kd mice. Collectively, these findings demonstrated that there was limited RSD-induced priming of myeloid cells in IL-1R1 KO mice and disrupted propagation of neuroinflammatory signals in the brain of eIL-1R1kd mice. Furthermore, these data showed that transduction of IL-1 signaling by endothelial cells potentiates stress-induced neuroinflammation and promotes anxiety-like behavior.

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Crossref · 10.1523/jneurosci.3723-13.2014

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  • Stress-induced redistribution of myeloid cells to the spleen leads to long-term immune and behavioral sensitization to subthreshold stressors.

    “Stress- induced redistribution of myeloid cells to the spleen leads to long-term immune and behavioral sensitization to subthreshold stressors.”

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Authors
Wohleb, E. S., Patterson, J. M., Sharma, V., Quan, N., Godbout, J. P., & Sheridan, J. F.
Affiliations
The Ohio State University (US)
Venue
The Journal of Neuroscience
Published
2014-02-12
Volume
34
Issue
7
Pages
2583-2591
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2070447896
Cited by
209
References
50
Citations by year
2026: 10 · 2025: 8 · 2024: 15 · 2023: 20 · 2022: 17 · 2021: 18 · 2020: 16 · 2019: 24 · 2018: 14 · 2017: 20 · 2016: 19 · 2015: 15 · 2014: 11
FWCI
11.25
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (1f31mh095473-01a1)
  • National Institute on Aging (R01AG033028)
  • National Institute of Mental Health (R01MH097243, F31-MH09547301, R01MH093473)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
IL1R1, interleukin-1β signaling, endothelial cells, anxiety-like behavior, repeated social defeat, microglial activation, myeloid cells, bone marrow chimeras, TNF-α, interleukin-6
MeSH terms
Animals, Anxiety, Behavior, Animal, Brain, Chemotaxis, Leukocyte, Flow Cytometry, Fluorescent Antibody Technique, Interleukin-1, Macrophages, Male, Mice, Inbred C57BL, Stress, Psychological, Signal Transduction, Mice, Knockout, Endothelial Cells, Mice, Receptors, Interleukin-1 Type I, Real-Time Polymerase Chain Reaction

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