Cited by 698Tryptophan and brain disordersNeuroinflammation and Neurodegeneration MechanismsNeuroendocrine regulation and behavior

Unexpected role of interferon-γ in regulating neuronal connectivity and social behaviour

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Filiano, Anthony J., Xu, Yang, Tustison, Nicholas J., Marsh, Rachel L., Baker, Wendy, Smirnov, Igor, Overall, Christopher C., Gadani, Sachin P. +9 more·2016·Nature

Abstract

Immune dysfunction is commonly associated with several neurological and mental disorders. Although the mechanisms by which peripheral immunity may influence neuronal function are largely unknown, recent findings implicate meningeal immunity influencing behaviour, such as spatial learning and memory. Here we show that meningeal immunity is also critical for social behaviour; mice deficient in adaptive immunity exhibit social deficits and hyper-connectivity of fronto-cortical brain regions. Associations between rodent transcriptomes from brain and cellular transcriptomes in response to T-cell-derived cytokines suggest a strong interaction between social behaviour and interferon-γ (IFN-γ)-driven responses. Concordantly, we demonstrate that inhibitory neurons respond to IFN-γ and increase GABAergic (γ-aminobutyric-acid) currents in projection neurons, suggesting that IFN-γ is a molecular link between meningeal immunity and neural circuits recruited for social behaviour. Meta-analysis of the transcriptomes of a range of organisms reveals that rodents, fish, and flies elevate IFN-γ/JAK-STAT-dependent gene signatures in a social context, suggesting that the IFN-γ signalling pathway could mediate a co-evolutionary link between social/aggregation behaviour and an efficient anti-pathogen response. This study implicates adaptive immune dysfunction, in particular IFN-γ, in disorders characterized by social dysfunction and suggests a co-evolutionary link between social behaviour and an anti-pathogen immune response driven by IFN-γ signalling.

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Authors
Filiano, A. J., Xu, Y., Tustison, N. J., Marsh, R. L., Baker, W., Smirnov, I., Overall, C. C., Gadani, S. P., Turner, S. D., Weng, Z., Peerzade, S. N., Chen, H., Lee, K. S., Scott, M. M., Beenhakker, M. P., Litvak, V., & Kipnis, J.
Affiliations
  • University of Virginia (US)
  • University of Massachusetts Chan Medical School (US)
Corresponding author
  • Filiano, Anthony J.
  • Litvak, Vladimir
  • Kipnis, Jonathan
Venue
Nature
Published
2016-07
Volume
535
Issue
7612
Pages
425-429
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2469685265
Cited by
697
References
66
Citations by year
2026: 62 · 2025: 76 · 2024: 91 · 2023: 78 · 2022: 74 · 2021: 69 · 2020: 70 · 2019: 60 · 2018: 56 · 2017: 41 · 2016: 17 · 2015: 1
FWCI
3.47
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • National Institutes of Health
  • National Institute on Aging (AG034113, R01AG034113, R37AG034113)
  • National Institute of Allergy and Infectious Diseases (T32AI007496)
  • National Institute of Neurological Disorders and Stroke (R01NS081026, NS081026)
Topics
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
Keywords
interferon-gamma, social behavior, meningeal immunity, GABAergic neurotransmission, prefrontal cortex, neural circuits, JAK/STAT signaling, T cell cytokines, neuroimmune interactions, social dysfunction
MeSH terms
Animals, Drosophila melanogaster, Female, Interferon-gamma, Male, Meninges, Mice, Inbred C57BL, Neural Pathways, Social Behavior, T-Lymphocytes, Zebrafish, Signal Transduction, Prefrontal Cortex, Mice, Rats, GABAergic Neurons, Transcriptome

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