Cited by 646Immune Response and InflammationTuberculosis Research and EpidemiologyImmune cells in cancer

Toll-like receptor–induced arginase 1 in macrophages thwarts effective immunity against intracellular pathogens

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El Kasmi, Karim C, Qualls, Joseph E, Pesce, John T, Smith, Amber M, Thompson, Robert W, Henao-Tamayo, Marcela, Basaraba, Randall J, König, Till +10 more·2008·Nature Immunology

Abstract

Toll-like receptor (TLR) signaling in macrophages is required for antipathogen responses, including the biosynthesis of nitric oxide from arginine, and is essential for immunity to Mycobacterium tuberculosis, Toxoplasma gondii and other intracellular pathogens. Here we report a 'loophole' in the TLR pathway that is advantageous to these pathogens. Intracellular pathogens induced expression of the arginine hydrolytic enzyme arginase 1 (Arg1) in mouse macrophages through the TLR pathway. In contrast to diseases dominated by T helper type 2 responses in which Arg1 expression is greatly increased by interleukin 4 and 13 signaling through the transcription factor STAT6, TLR-mediated Arg1 induction was independent of the STAT6 pathway. Specific elimination of Arg1 in macrophages favored host survival during T. gondii infection and decreased lung bacterial load during tuberculosis infection.

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  1. [15]Wynn TA Fibrotic disease and the T(H)1/T(H)2 paradigm Nat. Rev. Immunol 2004 4 583 594 15286725 PMC2702150

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Authors
El Kasmi, K. C., Qualls, J. E., Pesce, J. T., Smith, A. M., Thompson, R. W., Henao-Tamayo, M., Basaraba, R. J., König, T., Schleicher, U., Koo, M.-S., Kaplan, G., Fitzgerald, K. A., Tuomanen, E. I., Orme, I. M., Kanneganti, T.-D., Bogdan, C., Wynn, T. A., & Murray, P. J.
Affiliations
  • St. Jude Children's Research Hospital (US)
  • National Institutes of Health (US)
  • Colorado State University (US)
  • University Medical Center Freiburg (DE)
  • Universitätsklinikum Erlangen (DE)
  • University of Medicine and Dentistry of New Jersey (US)
  • University of Massachusetts Chan Medical School (US)
Corresponding author
  • Wynn, Thomas A
  • Murray, Peter J
Venue
Nature Immunology
Published
2008-11-02
Volume
9
Issue
12
Pages
1399-1406
ISSN
  • 1529-2908 (ISSN-L)
  • 1529-2916
OpenAlex
W2038461328
Cited by
646
References
50
Citations by year
2026: 18 · 2025: 20 · 2024: 19 · 2023: 33 · 2022: 25 · 2021: 48 · 2020: 34 · 2019: 35 · 2018: 32 · 2017: 29 · 2016: 52 · 2015: 51 · 2014: 52 · 2013: 49 · 2012: 39
FWCI
13.66
Type
journal article
Language
en
Open access
Locations
  • Nature Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship@UMassChan (submittedVersion)
Funders
  • National Institutes of Health
  • National Cancer Institute (P30CA021765)
  • National Institute of Allergy and Infectious Diseases (AI27913, R01AI027913, AI062921, R01AI066046, AI66046, R01AI062921)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Health Sciences › Medicine › Infectious Diseases › Tuberculosis Research and Epidemiology
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
Keywords
arginase-1, Toll-like receptor signaling, macrophages, intracellular pathogens, Mycobacterium tuberculosis, Toxoplasma gondii, nitric oxide, STAT6, host-pathogen interaction, tuberculosis, toxoplasmosis, lung bacterial load
MeSH terms
Animals, Arginase, Bacterial Infections, Immunohistochemistry, Macrophages, Immunoblotting, Mice, Knockout, CCAAT-Enhancer-Binding Protein-beta, STAT6 Transcription Factor, Toll-Like Receptors, Mice, Myeloid Differentiation Factor 88

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