Cited by 191Cytokine Signaling Pathways and InteractionsNitric Oxide and Endothelin EffectsImmune cells in cancer

Induction of arginase I transcription by IL-4 requires a composite DNA response element for STAT6 and C/EBPβ

Gray, Michael J., Poljakovic, Mirjana, Kepka-Lenhart, Diane, Morris, Sidney M.·2005·Gene

Abstract

Arginine metabolism in macrophages during infection and inflammation is complex, owing to differential regulation of inducible nitric oxide synthase (iNOS) and arginases by cytokines and other agents. Changes in levels of Th2 cytokines such as interleukin-4 (IL-4) can play important roles in these conditions via effects on arginine metabolism. IL-4 alters macrophage arginine metabolism by inducing arginase I expression and inhibiting nitric oxide production. To determine the molecular basis for induction of arginase I, the promoter of the murine arginase I gene was cloned and analyzed by transfection in RAW 264.7 macrophage cells. IL-4 induction required a composite response element containing STAT6 and C/EBP sites located 2.86 kb upstream of the transcription start site. Competition experiments showed that STAT6 and C/EBPbeta bind to the STAT6 and C/EBP sites non-cooperatively. Elucidation of the mechanisms involved in regulation of arginase I transcription may provide a basis for developing strategies to modulate arginase expression in Th2 cytokine-predominant diseases.

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Crossref · 10.1016/j.gene.2005.04.004

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Authors
Gray, M. J., Poljakovic, M., Kepka-Lenhart, D., & Morris, S. M.
Affiliations
University of Pittsburgh (US)
Corresponding author
Morris, Sidney M.
Venue
Gene
Publisher
Elsevier BV
Published
2005-06
Volume
353
Issue
1
Pages
98-106
ISSN
0378-1119 (ISSN-L)
OpenAlex
W1999240526
Cited by
191
References
45
Citations by year
2026: 3 · 2025: 6 · 2024: 11 · 2023: 7 · 2022: 8 · 2021: 9 · 2020: 7 · 2019: 6 · 2018: 6 · 2017: 12 · 2016: 9 · 2015: 9 · 2014: 20 · 2013: 16 · 2012: 9
FWCI
3.11
Type
journal article
Language
en
Open access
closed
Locations
  • Gene (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of Defense
  • National Institutes of Health
  • National Institute of General Medical Sciences (GM64509, GM57384, R01GM057384, R01GM064509)
Topics
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
Keywords
arginase-1, IL-4, STAT6, C/EBPβ, transcriptional regulation, promoter analysis, macrophages, arginine metabolism, Th2 cytokines, inducible nitric oxide synthase, RAW 264.7 macrophages
MeSH terms
Animals, Arginase, Base Sequence, Binding Sites, Binding, Competitive, Cell Line, DNA, Luciferases, Macrophages, Mice, Inbred Strains, Molecular Sequence Data, Promoter Regions, Genetic, Protein Binding, Recombinant Fusion Proteins, Sequence Homology, Nucleic Acid, Transcription, Genetic, Transfection, Trans-Activators, Interleukin-4, Gene Expression Regulation, Enzymologic, Response Elements, CCAAT-Enhancer-Binding Protein-beta, Electrophoretic Mobility Shift Assay, STAT6 Transcription Factor, Mice

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