Cited by 297Immune Response and InflammationNF-κB Signaling PathwaysGene Regulatory Network Analysis

Function of C/EBPδ in a regulatory circuit that discriminates between transient and persistent TLR4-induced signals

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Litvak, Vladimir, Ramsey, Stephen A, Rust, Alistair G, Zak, Daniel E, Kennedy, Kathleen A, Lampano, Aaron E, Nykter, Matti, Shmulevich, Ilya +1 more·2009·Nature Immunology

Abstract

The innate immune system is like a double-edged sword: it is absolutely required for host defense against infection, but when uncontrolled, it can trigger a plethora of inflammatory diseases. Here we use systems-biology approaches to predict and confirm the existence of a gene-regulatory network involving dynamic interaction among the transcription factors NF-kappaB, C/EBPdelta and ATF3 that controls inflammatory responses. We mathematically modeled transcriptional regulation of the genes encoding interleukin 6 and C/EBPdelta and experimentally confirmed the prediction that the combination of an initiator (NF-kappaB), an amplifier (C/EBPdelta) and an attenuator (ATF3) forms a regulatory circuit that discriminates between transient and persistent Toll-like receptor 4-induced signals. Our results suggest a mechanism that enables the innate immune system to detect the duration of infection and to respond appropriately.

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  • Most prior mammalian regulatory circuit reconstruction studies assumed a single fixed network.

    “Most of these studies have relied upon computational circuit-reconstruction algorithms that assume one ‘fixed’ network.”

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Authors
Litvak, V., Ramsey, S. A., Rust, A. G., Zak, D. E., Kennedy, K. A., Lampano, A. E., Nykter, M., Shmulevich, I., & Aderem, A.
Affiliations
Institute for Systems Biology (US)
Corresponding author
Aderem, Alan
Venue
Nature Immunology
Published
2009-03-08
Volume
10
Issue
4
Pages
437-443
ISSN
  • 1529-2908 (ISSN-L)
  • 1529-2916
OpenAlex
W2036584139
Cited by
295
References
52
Citations by year
2026: 8 · 2025: 12 · 2024: 13 · 2023: 11 · 2022: 11 · 2021: 13 · 2020: 3 · 2019: 9 · 2018: 18 · 2017: 12 · 2016: 15 · 2015: 16 · 2014: 21 · 2013: 28 · 2012: 27
FWCI
15.10
Type
journal article
Language
en
Open access
Locations
  • Nature Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Allergy and Infectious Diseases (R01AI032972, R01AI025032)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
Keywords
C/EBPδ, TLR4, NF-κB, ATF3, transcriptional regulatory networks, gene regulatory networks, innate immunity, interleukin-6, inflammation
MeSH terms
Animals, Bone Marrow Cells, Cells, Cultured, Escherichia coli Infections, Immunity, Innate, Lipopolysaccharides, Macrophages, Mice, Inbred C57BL, Models, Genetic, Interleukin-6, NF-kappa B, Mice, Knockout, Systems Biology, Toll-Like Receptor 4, Mice, Activating Transcription Factor 3, CCAAT-Enhancer-Binding Protein-delta, Gene Regulatory Networks

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