Vanadate and insulin stimulate gene 33 expression

Academic Article

Abstract

  • Vanadate and insulin stimulated gene 33 expression in rat H4 hepatoma cells. Vanadate (10-3 M) maximally increased gene 33 transcription 4-fold at 15 min. The maximal insulin induction (3-4-fold) was observed using 5×10-9 M insulin for 30 min. Both vanadate and insulin increased cytoplasmic mRNA levels in a dose-dependent manner, with maximal effects observed by 60 min. These effects on gene 33 mRNA accumulation were greater than those on transcription. Vanadate (10-3 M) maximally stimulated gene 33 mRNA levels 10-12-fold. The vanadate and insulin effects were not synergistic. Thus, high concentrations of vanadate regulate gene 33 expression in an insulin-like manner and, like insulin, vanadate probably controls transcriptional as well as post-transcriptional events. © 1992.
  • Digital Object Identifier (doi)

    Author List

  • Weinstock RS; Messina JL
  • Start Page

  • 931
  • End Page

  • 937
  • Volume

  • 189
  • Issue

  • 2