Cited by 427Vagus Nerve Stimulation ResearchStress Responses and CortisolRheumatoid Arthritis Research and Therapies

The sympathetic nervous response in inflammation

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Pongratz, Georg, Straub, Rainer H·2014·Arthritis Research & Therapy

Abstract

Over the past decades evidence has accumulated clearly demonstrating a pivotal role for the sympathetic nervous system (SNS) and its neurotransmitters in regulating inflammation. The first part of this review provides the reader with an overview showing that the interaction of the SNS with the immune system to control inflammation is strongly context-dependent (for example, depending on the activation state of the immune cell or neuro-transmitter concentration). In the second part we focus on autoimmune arthritis as a well investigated example for sympathetically controlled inflammation to show that the SNS and catecholamines play a differential role depending on the time point of ongoing disease. A model will be developed to explain the proinflammatory effects of the SNS in the early phase and the anti-inflammatory effects of catecholamines in the later phase of autoimmune arthritis. In the final part, a conceptual framework is discussed that shows that a major purpose of increased SNS activity is nourishment of a continuously activated immune system at a systemic level using energy-rich fuels (glucose, amino acids, lipids), while uncoupling from central nervous regulation occurs at sites of inflammation by repulsion of sympathetic fibers and local adrenoceptor regulation. This creates zones of ‘permitted local inflammation’. However, if this ‘inflammatory configuration’ persists and is strong, as in autoimmunity, the effects are detrimental because of the resultant chronic catabolic state, leading to cachexia, high blood pressure, insulin resistance, and increased cardiovascular mortality, and so on. Today, the challenge is to translate this conceptual knowledge into clinical benefit.

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  • Adrenergic signalling can have both anti-inflammatory and pro-inflammatory effects, depending on adrenergic receptor subtype, level of activation of specific cell types, and stage of disease progression.

    “Both anti-inflammatory and pro-inflammatory effects of adrenergic signalling have been demonstrated, depending upon the subtype of adrenergic receptors expressed167, the level of activation of specific cell types and the stage of disease progression168.”

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Authors
Pongratz, G., & Straub, R. H.
Affiliations
University Hospital Regensburg (DE)
Corresponding author
Pongratz, Georg
Venue
Arthritis Research & Therapy
Published
2014-12-12
Volume
16
Issue
6
Pages
504-504
ISSN
1478-6354 (ISSN-L)
OpenAlex
W2128414222
Cited by
427
References
104
Citations by year
2026: 36 · 2025: 57 · 2024: 41 · 2023: 50 · 2022: 50 · 2021: 52 · 2020: 31 · 2019: 35 · 2018: 35 · 2017: 14 · 2016: 21 · 2015: 4 · 2013: 1
FWCI
1.05
Type
journal article
Language
en
Open access
Locations
  • Arthritis Research & Therapy (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Neurology › Vagus Nerve Stimulation Research
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Rheumatology › Rheumatoid Arthritis Research and Therapies
Keywords
sympathetic nervous system, inflammation, autoimmune arthritis, catecholamines, neuroimmune interactions, adrenergic receptors, cachexia, insulin resistance, cardiovascular mortality
MeSH terms
Animals, Arthritis, Humans, Inflammation, Sympathetic Nervous System, Autoimmunity, Inflammation Mediators

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