Acute-phase-dependent binding affinity of C/EBPbeta from the nuclear extract and nuclear matrix towards the hormone response element of the alpha2-macroglobulin gene in rat hepatocytes

Gen Physiol Biophys. 2003 Jun;22(2):279-85.

Abstract

Interactions of nuclear extract and nuclear matrix proteins from rat hepatocytes with the hormone response element of the alpha2-macroglobulin gene were studied. By Western and South-Western blot analysis we have shown the presence of C/EBPbeta in the examined nuclear fractions as well as its increased binding affinity to the examined gene sequence during the acute-phase response. The results suggest that both nuclear protein fractions could participate in the transcriptional regulation of the alpha2-macroglobulin gene in the rat hepatocytes.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acute-Phase Reaction / chemically induced
  • Acute-Phase Reaction / immunology
  • Acute-Phase Reaction / metabolism*
  • Animals
  • CCAAT-Enhancer-Binding Proteins / immunology
  • CCAAT-Enhancer-Binding Proteins / metabolism*
  • Cell Nucleus / immunology
  • Cell Nucleus / metabolism*
  • Cells, Cultured
  • Hepatocytes / immunology
  • Hepatocytes / metabolism*
  • Male
  • Nuclear Matrix / immunology
  • Nuclear Matrix / metabolism
  • Rats
  • Rats, Wistar
  • Transcription Factor CHOP
  • Transcription Factors / immunology
  • Transcription Factors / metabolism*
  • Turpentine
  • alpha-Macroglobulins / immunology
  • alpha-Macroglobulins / metabolism*

Substances

  • CCAAT-Enhancer-Binding Proteins
  • Ddit3 protein, rat
  • Transcription Factors
  • alpha-Macroglobulins
  • Transcription Factor CHOP
  • Turpentine