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Effect of recombinant interleukin-1 beta on murine CD14 gene expression in vivo

Academic Article
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Overview

authors

  • Fearns, C.
  • Ulevitch, Richard

publication date

  • March 1998

journal

  • Shock  Journal

abstract

  • Recombinant murine interleukin-1beta (IL-1beta) induced a transient increase in plasma levels of CD14 with a peak at 8 h, and this increase in plasma CD14 antigen was accompanied by increased levels of CD14 messenger ribonucleic acid (mRNA) in all organs examined. In most organs, maximal levels of induction were obtained after administration of 125 ng of IL-1beta. Moreover, in situ hybridization studies revealed that CD14 mRNA was induced in both myeloid cells and epithelial cells. Pretreatment of mice with anti-lL-1beta antibodies reduced the subsequent induction of plasma levels of CD14 by lipopolysaccharide (LPS) and significantly reduced the level of induction of CD14 mRNA in kidney and liver. The antibodies did not block LPS mediated induction in lung. Pretreatment with a combination of anti-lL-1beta and anti-tumor necrosis factor (TNF) antibodies was more effective in reducing LPS mediated induction of plasma CD14 and CD14 mRNA in liver than pretreatment with either antibody alone. The combination of anti-lL-1beta and anti-TNF antibodies had no additional effect in kidney and lung over that observed with anti-TNF alone. These studies demonstrate that regulation of CD14 gene expression by LPS in vivo involves multiple signals but is mediated, in part, by the cytokines IL-1beta and TNF-alpha.

subject areas

  • Animals
  • Antibodies
  • Antigens, CD14
  • Dose-Response Relationship, Drug
  • Epithelium
  • Female
  • Gene Expression Regulation
  • Immune Sera
  • Interleukin-1
  • Lipopolysaccharides
  • Mice
  • Mice, Inbred Strains
  • RNA, Messenger
  • Recombinant Proteins
  • Tumor Necrosis Factor-alpha
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Identity

International Standard Serial Number (ISSN)

  • 1073-2322

Digital Object Identifier (DOI)

  • 10.1097/00024382-199803000-00001

PubMed ID

  • 9525321
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Additional Document Info

start page

  • 157

end page

  • 163

volume

  • 9

issue

  • 3

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