Different preparations of natural and recombinant human interleukin-6 (ifn-β2, bsf-2) similarly stimulate acute phase protein synthesis and uptake of α-aminoisobutyric acid by cultured rat hepatocytes Journal Articles uri icon

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  • 1. Rat hepatocytes were cultured for 2 days in Williams E medium containing 1 microM insulin and dexamethasone. 2. Production of five plasma proteins was determined by electroimmunoassay in the media, and amino acid uptake was measured by [alpha-14C]aminoisobutyric acid accumulation in hepatocytes. 3. Supernatants from rat peritoneal macrophages and IL-6/IFN-beta 2/BSF-2 obtained from four different laboratories similarly stimulated synthesis of fibrinogen, alpha 1-cysteine proteinase inhibitor and alpha 2-macroglobulin, as well as [14C]-accumulation in cultured hepatocytes. 4. It is concluded that IL-6 is the principal hepatocyte stimulating factor responsible for typical features of the acute phase response of liver cells.


  • Bereta, J
  • Kurdowska, A
  • Koj, A
  • Hirano, T
  • Kishimoto, T
  • Content, J
  • Fiers, W
  • Van Damme, J
  • Gauldie, Jack

publication date

  • January 1989