Cited by 196Cytokine Signaling Pathways and InteractionsBiomarkers in Disease MechanismsAnimal health and immunology

Up-regulation of the expression of leucine-rich α2-glycoprotein in hepatocytes by the mediators of acute-phase response

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Shirai, Ryoichi, Hirano, Fumiyasu, Ohkura, Naoki, Ikeda, Kiyoshi, Inoue, Seiji·2009·Biochemical and Biophysical Research Communications

Abstract

Leucine-rich alpha(2)-glycoprotein (LRG) is a plasma protein in which leucine-rich repeats (LRRs) were first discovered. Although the physiological function of LRG is not known, increases in the serum level of LRG have been reported in various diseases. In this study, we found that LRG was induced by recombinant human IL-6 in human hepatoma HepG2 cells. The induction of LRG by IL-6 was up-regulated synergistically with either IL-1beta or TNFalpha in a pattern similar to those for type 1 acute-phase proteins. We also found that lipopolysaccharide (LPS) administered intraperitoneally to mice enhanced dose-dependently the expression of LRG mRNA in the liver as well as those for mouse major acute-phase proteins. These results strongly suggest that LRG was a secretory type 1 acute-phase protein whose expression was up-regulated by the mediator of acute-phase response.

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Crossref · 10.1016/j.bbrc.2009.03.104

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  • Cytochrome c can bind to leucine-rich α2 glycoprotein, a plasma protein elevated during inflammation.

    “reports suggest that cytochrome c can bind to leucine-rich α2 glycoprotein, a plasma protein that is elevated during inflammation206,207.”

    From The role of mitochondria in rheumatic diseases (2022) · cites this paper as [206]

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Authors
Shirai, R., Hirano, F., Ohkura, N., Ikeda, K., & Inoue, S.
Affiliations
  • Osaka University of Pharmaceutical Sciences (JP)
  • Teikyo University (JP)
Corresponding author
Inoue, Seiji
Venue
Biochemical and Biophysical Research Communications
Publisher
Elsevier BV
Published
2009-05
Volume
382
Issue
4
Pages
776-779
ISSN
0006-291X (ISSN-L)
OpenAlex
W2028863735
Cited by
193
References
31
Citations by year
2026: 9 · 2025: 12 · 2024: 17 · 2023: 18 · 2022: 17 · 2021: 20 · 2020: 26 · 2019: 10 · 2018: 11 · 2017: 8 · 2016: 4 · 2015: 9 · 2014: 4 · 2013: 5 · 2012: 4
FWCI
3.83
Type
journal article
Language
en
Open access
Locations
  • Biochemical and Biophysical Research Communications (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Life Sciences › Immunology and Microbiology › Immunology › Biomarkers in Disease Mechanisms
  • Health Sciences › Veterinary › Small Animals › Animal health and immunology
Keywords
acute phase response, hepatocytes, interleukin-6, IL-1β, TNF-α, lipopolysaccharide, gene upregulation, liver, HepG2 cells
MeSH terms
Acute-Phase Reaction, Animals, Cell Line, Disease Models, Animal, Glycoproteins, Humans, Mice, Inbred ICR, Up-Regulation, Cytokines, Endotoxemia, Hepatocytes, Mice

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