Cited by 3,728Vagus Nerve Stimulation ResearchHeart Rate Variability and Autonomic ControlNeuropeptides and Animal Physiology

The inflammatory reflex

Tracey, Kevin J.·2002·Nature

Abstract

Inflammation is a local, protective response to microbial invasion or injury. It must be fine-tuned and regulated precisely, because deficiencies or excesses of the inflammatory response cause morbidity and shorten lifespan. The discovery that cholinergic neurons inhibit acute inflammation has qualitatively expanded our understanding of how the nervous system modulates immune responses. The nervous system reflexively regulates the inflammatory response in real time, just as it controls heart rate and other vital functions. The opportunity now exists to apply this insight to the treatment of inflammation through selective and reversible 'hard-wired' neural systems.

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Crossref · 10.1038/nature01321

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79 of 79 references verified0 citation errors · 0 not checkable

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  • Early life stressful experiences might reduce inhibitory cholinergic neurotransmission, favoring inflammation persistence.

    “Similarly, early life stressful experiences might reduce inhibitory cholinergic neurotransmission (25), favoring inflammation persistence (26).”
  • In response to pathogens and other injurious stimuli, TNF-α is produced by activated macrophages, dendritic cells, and other cells in the mucosa.

    “For example, in response to pathogens and other injurious stimuli, tumor-necrosis factor-alpha (TNF-α), a cytokine, is produced by activated macrophages, dendritic cells, and other cells in the mucosa (3, 65).”
  • The autonomic nervous system regulates peripheral cytokine production; parasympathetic nerves directly affect the immune system, sympathetic nerves affect it through noradrenaline secretion, and the vagus nucleus inhibits immune functions and cytokine production through acetylcholine.

    “In addition, the autonomic nervous system regulates peripheral cytokine production. Parasympathetic nerves directly affect the immune system, while sympathetic nerves affect the immune system through NA secretion from the peripheral sympathetic ganglia. The vagus nucleus, which is located in the pons, inhibits immune functions and cytokine production through the secretion of Ach from the vagus ner”
  • The efferent arm of the inflammatory reflex, the cholinergic antiinflammatory pathway, is a highly robust mechanism for cytokine control.

    “The efferent arm of the inflammatory reflex, now termed the cholinergic antiinflammatory pathway (14), is a highly robust mechanism for cytokine control.”

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Authors
Tracey, K. J.
Affiliations
Northwell Health (US)
Corresponding author
Tracey, Kevin J.
Venue
Nature
Published
2002-12
Volume
420
Issue
6917
Pages
853-859
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1995525413
Cited by
3,728
References
79
Citations by year
2026: 264 · 2025: 197 · 2024: 177 · 2023: 172 · 2022: 208 · 2021: 204 · 2020: 179 · 2019: 180 · 2018: 160 · 2017: 150 · 2016: 161 · 2015: 150 · 2014: 162 · 2013: 171 · 2012: 157
FWCI
6.89
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Neurology › Vagus Nerve Stimulation Research
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
cholinergic anti-inflammatory pathway, cholinergic neurons, neuroimmune regulation, acute inflammation, inflammation treatment
MeSH terms
Animals, Antibodies, Monoclonal, Humans, Inflammation, Nervous System Physiological Phenomena, Reflex, Tumor Necrosis Factor-alpha, Vagus Nerve

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