Interleukin-4 inhibits kappa light chain expression and NF kappa B activation but not I kappa B alpha degradation in 70Z/3 murine pre-B cells

Eur J Immunol. 1995 Oct;25(10):2961-6. doi: 10.1002/eji.1830251037.

Abstract

The murine pre-B cell line 70Z/3 responds to lipopolysaccharide by up-regulating the surface expression of kappa (kappa) light chain through activation of the transcription factor NF kappa B. Interleukin-4 (IL-4), a T cell cytokine, is a known inhibitor of some LPS-mediated events. We investigated whether IL-4 could inhibit the up-regulation of kappa light chain and activation of NF kappa B by LPS in 70Z/3. IL-4 partially inhibited both the LPS-induced expression of kappa light chain and also the activation of NF kappa B as judged by an NF kappa B reporter gene assay. Additionally, electrophoretic mobility shift assays confirmed this effect on LPS-induced NF kappa B DNA binding activity in the nucleus. Surprisingly, proteolytic degradation of I kappa B alpha (MAD3), a prerequisite for NF kappa B activation, was unaffected by IL-4, implying that this cytokine inhibits some subsequent undefined event in the activation of NF kappa B. IL-4 was also found partially to inhibit NF kappa B activity induced by tumor necrosis factor-alpha (TNF-alpha) and interleukin-1-beta (IL-1 beta). These results indicate that there may be a common mechanism for the well-documented anti-inflammatory effects of IL-4 and that this mechanism involves the transcription factor NF kappa B.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antigens, CD / genetics
  • Antigens, CD / metabolism
  • B-Lymphocytes / drug effects*
  • B-Lymphocytes / metabolism
  • Base Sequence
  • Cell Line
  • DNA / metabolism
  • DNA-Binding Proteins / metabolism*
  • Depression, Chemical
  • Gene Expression Regulation / drug effects*
  • Genes, Immunoglobulin*
  • Genes, Reporter
  • Hematopoietic Stem Cells / drug effects*
  • Hematopoietic Stem Cells / metabolism
  • I-kappa B Proteins*
  • Immunoglobulin M / biosynthesis
  • Immunoglobulin M / genetics
  • Immunoglobulin kappa-Chains / biosynthesis*
  • Immunoglobulin kappa-Chains / genetics
  • Interleukin-1 / pharmacology
  • Interleukin-4 / pharmacology*
  • Lipopolysaccharides / pharmacology
  • Mice
  • Molecular Sequence Data
  • NF-KappaB Inhibitor alpha
  • NF-kappa B / metabolism*
  • Promoter Regions, Genetic
  • Receptors, Antigen, B-Cell / biosynthesis
  • Receptors, Antigen, B-Cell / genetics
  • Receptors, Tumor Necrosis Factor / genetics
  • Receptors, Tumor Necrosis Factor / metabolism
  • Receptors, Tumor Necrosis Factor, Type I
  • Tumor Necrosis Factor-alpha / pharmacology
  • beta-Galactosidase / biosynthesis
  • beta-Galactosidase / genetics

Substances

  • Antigens, CD
  • DNA-Binding Proteins
  • I-kappa B Proteins
  • Immunoglobulin M
  • Immunoglobulin kappa-Chains
  • Interleukin-1
  • Lipopolysaccharides
  • NF-kappa B
  • Nfkbia protein, mouse
  • Receptors, Antigen, B-Cell
  • Receptors, Tumor Necrosis Factor
  • Receptors, Tumor Necrosis Factor, Type I
  • Tumor Necrosis Factor-alpha
  • NF-KappaB Inhibitor alpha
  • Interleukin-4
  • DNA
  • beta-Galactosidase