Regulation of hemopexin transcription by calcium ionophores and phorbol ester in hepatoma cells

Academic Article


  • Hemopexin (Hx) is an acute-phase hepatic protein, whose transcription is upregulated by IL-6. The transcription rate of Hx was found to be increased 11-fold by the calcium ionophore A23187, 25-fold by the calcium ionophore ionomycin, and 4-5-fold by phorbol 12-myristate 13-acetate (PMA) in serum-starved H4IIE rat hepatoma cells. Insulin did not affect the transcription rate of Hx. These findings are consistent with involvement of intracellular calcium concentrations and activation of protein kinase C (PKC) action in the regulation of Hx. © 2003 Elsevier Science Ireland Ltd. All rights reserved.
  • Published In

    Digital Object Identifier (doi)

    Author List

  • Stred SE; Cote D; Weinstock RS; Messina JL
  • Start Page

  • 111
  • End Page

  • 116
  • Volume

  • 204
  • Issue

  • 1-2