Induction of IDO by bacille Calmette-Guérin is responsible for development of murine depressive-like behavior

Jason O'connor, Marcus A. Lawson, Caroline André, Eileen M. Briley, Sandra S. Szegedi, Jacques Lestage, Nathalie Castanon, Miles Herkenham, Robert Dantzer, Keith W. Kelley

Research output: Contribution to journalArticle

204 Citations (Scopus)

Abstract

Chronic inflammation activates the tryptophan-degrading enzyme IDO, which is well known to impair T cell proliferation. We have previously established that bacille Calmette-Guérin (BCG), an attenuated form of Mycobacterium bovis, is associated with persistent activation of IDO in the brain and chronic depressive-like behavior, but a causative role has not been established. In these experiments we used both pharmacologic and genetic approaches to test the hypothesis that IDO activation is responsible for the development of chronic depression that follows BCG infection. BCG induced TNF-α, IFN-γ, and IDO mRNA steady-state transcripts in the brain as well as the enzyme 3-hydroxyanthranilic acid oxygenase (3-HAO) that lies downstream of IDO and generates the neuroactive metabolite, quinolinic acid. Behaviors characteristic of depression were apparent 1 wk after BCG infection. Pretreatment with the competitive IDO inhibitor 1-methyltryptophan fully blocked BCG-induced depressive-like behaviors. Importantly, IDO-deficient mice were completely resistant to BCG-induced depressive-like behavior but responded normally to BCG induction of proinflammatory cytokines. These results are the first to prove that the BCG-induced persistent activation of IDO is accompanied by the induction of 3-hydroxyanthranilic acid oxygenase and that IDO is required as an initial step for the subsequent development of chronic depressive-like behavior.

Original languageEnglish (US)
Pages (from-to)3202-3212
Number of pages11
JournalJournal of Immunology
Volume182
Issue number5
DOIs
StatePublished - Mar 1 2009
Externally publishedYes

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3-Hydroxyanthranilate 3,4-Dioxygenase
Depression
Quinolinic Acid
Brain
Enzymes
Mycobacterium bovis
Infection
Tryptophan
Cell Proliferation
Cytokines
Inflammation
T-Lymphocytes
Messenger RNA

ASJC Scopus subject areas

  • Immunology
  • Medicine(all)

Cite this

O'connor, J., Lawson, M. A., André, C., Briley, E. M., Szegedi, S. S., Lestage, J., ... Kelley, K. W. (2009). Induction of IDO by bacille Calmette-Guérin is responsible for development of murine depressive-like behavior. Journal of Immunology, 182(5), 3202-3212. https://doi.org/10.4049/jimmunol.0802722

Induction of IDO by bacille Calmette-Guérin is responsible for development of murine depressive-like behavior. / O'connor, Jason; Lawson, Marcus A.; André, Caroline; Briley, Eileen M.; Szegedi, Sandra S.; Lestage, Jacques; Castanon, Nathalie; Herkenham, Miles; Dantzer, Robert; Kelley, Keith W.

In: Journal of Immunology, Vol. 182, No. 5, 01.03.2009, p. 3202-3212.

Research output: Contribution to journalArticle

O'connor, J, Lawson, MA, André, C, Briley, EM, Szegedi, SS, Lestage, J, Castanon, N, Herkenham, M, Dantzer, R & Kelley, KW 2009, 'Induction of IDO by bacille Calmette-Guérin is responsible for development of murine depressive-like behavior', Journal of Immunology, vol. 182, no. 5, pp. 3202-3212. https://doi.org/10.4049/jimmunol.0802722
O'connor, Jason ; Lawson, Marcus A. ; André, Caroline ; Briley, Eileen M. ; Szegedi, Sandra S. ; Lestage, Jacques ; Castanon, Nathalie ; Herkenham, Miles ; Dantzer, Robert ; Kelley, Keith W. / Induction of IDO by bacille Calmette-Guérin is responsible for development of murine depressive-like behavior. In: Journal of Immunology. 2009 ; Vol. 182, No. 5. pp. 3202-3212.
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