Cited by 60Immune Response and Inflammationinterferon and immune responsesInflammasome and immune disorders

Recruitment of TLR adapter TRIF to TLR4 signaling complex is mediated by the second helical region of TRIF TIR domain

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Piao, Wenji, Ru, Lisa W., Piepenbrink, Kurt H., Sundberg, Eric J., Vogel, Stefanie N., Toshchakov, Vladimir Y.·2013·Proceedings of the National Academy of Sciences

Abstract

Significance: This study sheds light on the mechanisms of Toll-like receptor 4 (TLR4) signaling complex assembly. Particularly, the interaction site that mediates Toll/IL-1R resistance (TIR) domain–containing adapter-inducing IFN-β (TRIF) recruitment to the TLR4 signaling complex is identified within the second helical region of the TRIF TIR domain. This finding is significant because “a mimic” of this site potently inhibits TLR4 signaling in cells by a competitive mechanism and decreases LPS-induced mortality in mice by more than 80%.

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Crossref · 10.1073/pnas.1313575110

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  • Determined serum IL-6 levels agree with previously reported values after PHx (1-2 ng/mL) and LPS treatment (175 ng/mL) of mice.

    “Determined serum levels agree with previously reported values after PHx (1–2 ng/mL; Nechemia-Arbely et al., 2011; Yin et al., 2011) and LPS treatment (175 ng/mL; Piao et al., 2013) of mice.”

    From Model Based Targeting of IL-6-Induced Inflammatory Responses in Cultured Primary Hepatocytes to Improve Application of the JAK Inhibitor Ruxolitinib (2017) · cites this paper as Piao et al., 2013

    The ‘TF5 Blunts LPS-Induced Cytokine Response’ section reports measuring circulating IL-6 after LPS treatment of mice, and the Fig. 4 caption specifies that the samples were plasma. Our copy does not state the cited value of 175 ng/mL or identify the samples as serum. The PHx values are attached to other citations, not Piao et al. (LLM, conf=0.87)

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Authors
Piao, W., Ru, L. W., Piepenbrink, K. H., Sundberg, E. J., Vogel, S. N., & Toshchakov, V. Y.
Affiliations
  • University of Maryland, Baltimore (US)
  • Departments of aMicrobiology and Immunology,
Venue
Proceedings of the National Academy of Sciences
Published
2013-11-05
Volume
110
Issue
47
Pages
19036-19041
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2141941378
Cited by
60
References
45
Citations by year
2025: 4 · 2024: 6 · 2023: 3 · 2022: 5 · 2021: 6 · 2020: 7 · 2019: 6 · 2018: 4 · 2017: 5 · 2016: 4 · 2015: 8 · 2014: 2
FWCI
2.58
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)
  • Lincoln (University of Nebraska) (submittedVersion, cc-by-nc-nd)
Funders
  • National Institutes of Health (AI082299)
  • National Institute of Allergy and Infectious Diseases (R56AI018797, AI-095150, R01AI082299, AI018797, R37AI018797, AI082299, R01AI018797, R21AI095150)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Immunology and Microbiology › Immunology › interferon and immune responses
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
Keywords
TRIF, TLR4, TIR domain, tram, TLR4 signaling, MyD88-independent signaling, type I interferon, NF-κB, sepsis, lipopolysaccharide-induced inflammation, macrophage activation
MeSH terms
Animals, Circular Dichroism, Escherichia coli, Mice, Inbred C57BL, Immunoblotting, Signal Transduction, Mutagenesis, Site-Directed, Interferon-beta, Receptors, Interleukin, Adaptor Proteins, Vesicular Transport, Immunoprecipitation, Toll-Like Receptor 4, Mice

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