Cited by 146Tuberculosis Research and EpidemiologyMycobacterium research and diagnosisImmune responses and vaccinations

Macrophage arginase-1 controls bacterial growth and pathology in hypoxic tuberculosis granulomas

Open access
Duque-Correa, María A., Kühl, Anja A., Rodriguez, Paulo C., Zedler, Ulrike, Schommer-Leitner, Sandra, Rao, Martin, Weiner, January, Hurwitz, Robert +5 more·2014·Proceedings of the National Academy of Sciences

Abstract

Significance: Tuberculosis (TB) granulomas represent sites of both bacterial containment and tissue pathology. Macrophage killing of Mycobacterium tuberculosis ( Mtb ) in granulomas to contain infection must be regulated to prevent collateral tissue damage. Nitric oxide synthase-2 (NOS2) and arginase-1 (Arg1), macrophage enzymes metabolizing l -arginine, play key roles in this process. NOS2 produces reactive nitrogen intermediates to kill Mtb , whereas Arg1 regulates NOS2 activity via substrate competition. Arg1 activity could predominate in hypoxic regions of granulomas where NOS2 activity likely is suboptimal. Here we show that Arg1 plays a central role in restricting bacterial growth and restraining tissue damage within granulomas in TB and other chronic inflammatory diseases. These findings point to the modulation of Arg1 activity as a potential host-directed therapy for TB.

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Crossref · 10.1073/pnas.1408839111

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  • In the absence of functional NOS2, Arg1 exerts tissue protective effects and limits exacerbated granuloma formation and mycobacterial proliferation, traced to Arg1 controlling overwhelming T-cell activation.

    “Recent evidence also suggests that in the absence of functional NOS2, Arg1 exerts tissue protective effects and limits exacerbated granuloma formation and mycobacterial proliferation, which could be traced back to the function of Arg1 in controlling overwhelming T-cell activation (109).”

    From Macrophage defense mechanisms against intracellular bacteria (2015) · cites this paper as [109]

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Authors
Duque-Correa, M. A., Kühl, A. A., Rodriguez, P. C., Zedler, U., Schommer-Leitner, S., Rao, M., Weiner, J., Hurwitz, R., Qualls, J. E., Kosmiadi, G. A., Murray, P. J., Kaufmann, S. H. E., & Reece, S. T.
Affiliations
  • Department of Immunology and
  • Charité – Universitätsmedizin Berlin (DE)
  • Department of Microbiology, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112;
  • Max Planck Society (DE)
  • St. Jude Children's Research Hospital (US)
  • Central Scientific Research Institute of Tuberculosis Russian Academy of Medical Sciences (RU)
Venue
Proceedings of the National Academy of Sciences
Published
2014-09-08
Volume
111
Issue
38
Pages
E4024-32
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2147041037
Cited by
146
References
65
Citations by year
2026: 4 · 2025: 10 · 2024: 15 · 2023: 6 · 2022: 3 · 2021: 14 · 2020: 14 · 2019: 12 · 2018: 9 · 2017: 11 · 2016: 13 · 2015: 17 · 2014: 5 · 2012: 1
FWCI
10.74
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Max Planck Digital Library (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
  • National Cancer Institute (P 30CA 21765, P30CA021765)
  • National Institute of Allergy and Infectious Diseases (R21AI097485, AI097485)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Tuberculosis Research and Epidemiology
  • Health Sciences › Medicine › Epidemiology › Mycobacterium research and diagnosis
  • Life Sciences › Immunology and Microbiology › Immunology › Immune responses and vaccinations
Keywords
arginase-1, nitric oxide synthase 2, Mycobacterium tuberculosis, tuberculosis granuloma, hypoxia, macrophages, arginine metabolism, substrate competition, T cell proliferation, bacterial load, nitric oxide
MeSH terms
Animals, Hypoxia, Arginase, Arginine, Disease Models, Animal, Granuloma, Humans, Lung, Macrophages, Mycobacterium tuberculosis, Nitric Oxide, T-Lymphocytes, Tuberculosis, Pulmonary, Mice, Knockout, Cell Proliferation, Mice, Nitric Oxide Synthase Type II

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