Cited by 170Tryptophan and brain disordersStress Responses and CortisolNeurotransmitter Receptor Influence on Behavior

The enzyme indoleamine 2,3-dioxygenase is induced in the mouse brain in response to peripheral administration of lipopolysaccharide and superantigen

Lestage, J, Verrier, D, Palin, K, Dantzer, R·2002·Brain, Behavior, and Immunity

Abstract

The essential amino-acid, L-tryptophan, is the precursor of serotonin. Its availability in the brain is controlled by indoleamine 2,3-dioxygenase (IDO). This enzyme is inducible by cytokines such as interferon-gamma (IFN-gamma) and is the first and rate-limiting enzyme of the catabolism pathway of tryptophan. Since induction of IDO has been proposed to mediate the influence of cytokines on mood in patients with various somatic disorders, the present study aimed at analyzing the relationships between changes in brain IDO activity and serum IFN-gamma levels in response to peripheral immune stimulation by lipopolysaccharide (LPS) and superantigen in mice. Each of these treatments induced an increase in serum IFN-gamma at 6 h post-treatment followed 24 h later by a two-fold increase in IDO activity in the brain. These results support the involvement of peripheral IFN-gamma in the control of L-tryptophan catabolism in the brain.

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Crossref · 10.1016/s0889-1591(02)00014-4

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  • In the brain, IDO activity is significantly increased at 24 hours and peaks at 48 hours after LPS administration, corresponding to the expression of some depressive-like behaviors in laboratory animals.

    “In the brain, IDO activity is significantly increased at 24 hr and peaks at 48 hr in response to LPS administration, corresponding to the expression of some depressive-like behaviors, e.g. increased immobility in the forced-swim and tail suspension tests, in laboratory animals (Lestage et al., 2002, O'Connor et al., 2008).”

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Authors
Lestage, J., Verrier, D., Palin, K., & Dantzer, R.
Affiliations
Inserm (FR)
Corresponding author
Lestage, J
Venue
Brain, Behavior, and Immunity
Publisher
Elsevier BV
Published
2002-10
Volume
16
Issue
5
Pages
596-601
ISSN
0889-1591 (ISSN-L)
OpenAlex
W1978589950
Cited by
170
References
34
Citations by year
2026: 3 · 2025: 4 · 2024: 1 · 2023: 6 · 2022: 7 · 2021: 11 · 2020: 5 · 2019: 4 · 2018: 10 · 2017: 12 · 2016: 13 · 2015: 11 · 2014: 7 · 2013: 7 · 2012: 8
FWCI
1.42
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Behavior and Immunity (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
indoleamine 2,3-dioxygenase, tryptophan catabolism, serotonin, interferon-gamma, lipopolysaccharide, superantigens, tryptophan
MeSH terms
Animals, Brain, Interferon-gamma, Lipopolysaccharides, Male, Mice, Inbred BALB C, Tryptophan, Tryptophan Oxygenase, Superantigens, Indoleamine-Pyrrole 2,3,-Dioxygenase, Mice

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