Cited by 414Vagus Nerve Stimulation ResearchHeart Rate Variability and Autonomic ControlCancer, Stress, Anesthesia, and Immune Response

Reflex principles of immunological homeostasis

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Andersson, Ulf, Tracey, Kevin J.·2012·Annual Review of Immunology

Abstract

The reasoning that neural reflexes maintain homeostasis in other body organs, and that the immune system is innervated, prompted a search for neural circuits that regulate innate and adaptive immunity. This elucidated the inflammatory reflex, a prototypical reflex circuit that maintains immunological homeostasis. Molecular products of infection or injury activate sensory neurons traveling to the brainstem in the vagus nerve. The arrival of these incoming signals generates action potentials that travel from the brainstem to the spleen and other organs. This culminates in T cell release of acetylcholine, which interacts with α7 nicotinic acetylcholine receptors (α7 nAChR) on immunocompetent cells to inhibit cytokine release in macrophages. Herein is reviewed the neurophysiological basis of reflexes that provide stability to the immune system, the neural- and receptor-dependent mechanisms, and the potential opportunities for developing novel therapeutic devices and drugs that target neural pathways to treat inflammatory diseases.

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Crossref · 10.1146/annurev-immunol-020711-075015

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  • Brain-to-gut signaling can directly affect the microbiota via the immune system or gut functions such as motility, release of neurotransmitters, and intestinal immune tone.

    “brain to gut signaling can directly affect the microbiota, either via immune system or gut functions such as motility, release of neurotransmitters and intestinal immune tone (12, 17, 21, 31).”

    From The Role of Short-Chain Fatty Acids From Gut Microbiota in Gut-Brain Communication (2020) · cites this paper as [31]

    The Inflammatory Bowel Disease section (page unavailable) says vagus-nerve signaling may suppress cytokine release and inflammation locally in the bowel, supporting the immune-signaling part of the claim. It does not say that this changes the microbiota or identify gut motility or neurotransmitter release as routes by which brain-to-gut signaling affects it. (LLM, conf=0.84)

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Authors
Andersson, U., & Tracey, K. J.
Affiliations
  • Karolinska University Hospital (SE)
  • Feinstein Institute for Medical Research (US)
Venue
Annual Review of Immunology
Published
2012-04-23
Volume
30
Issue
1
Pages
313-335
ISSN
  • 0732-0582 (ISSN-L)
  • 1545-3278
OpenAlex
W2159374684
Cited by
414
References
79
Citations by year
2026: 17 · 2025: 13 · 2024: 20 · 2023: 26 · 2022: 33 · 2021: 29 · 2020: 28 · 2019: 30 · 2018: 34 · 2017: 37 · 2016: 29 · 2015: 31 · 2014: 41 · 2013: 31 · 2012: 14
FWCI
3.41
Type
journal article
Language
en
Open access
Locations
  • Annual Review of Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of General Medical Sciences (R01GM057226, R01GM062508)
Topics
  • Life Sciences › Neuroscience › Neurology › Vagus Nerve Stimulation Research
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
  • Health Sciences › Medicine › Psychiatry and Mental health › Cancer, Stress, Anesthesia, and Immune Response
Keywords
cholinergic anti-inflammatory pathway, immune homeostasis, vagus nerve, sensory neurons, brainstem, acetylcholine, alpha7 nicotinic acetylcholine receptor, T cells, macrophages, cytokine production, neuroimmune signaling, inflammatory diseases
MeSH terms
Acetylcholine, Animals, Anti-Inflammatory Agents, Homeostasis, Humans, Immunity, Innate, Inflammation, Neurons, Reflex, T-Lymphocytes

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