4-hydroxynonenal specifically inhibits c-myb but does not affect c-fos expressions in HL-60 cells

Giuseppina Barrera, Stefania Pizzimenti, Anna Serra, Carlo Ferretti, Vito M. Fazio, Giuseppe Saglio, Mario Umberto Dianzani

Research output: Contribution to journalArticlepeer-review

Abstract

4-Hydroxynonenal, an aldehyde produced from lipid peroxidation of cellular membranes, inhibits growth and induces differentiation of HL-60 human leukemic cell line. Since it is highly unstable in the culture medium, its effectiveness is increased when added repeatedly to the cell suspension. We have previously demonstrated that HNE inhibits c-myc but not N-ras expression in HL-60 cells. Here we investigate its effect on the expression of c-myb and c-fos, two early genes involved in the induction of myeloid and monocytic differentiation. Moreover, since c-fos is directly correlated with the intracellular level of cAMP, we also analysed the cAMP concentration after aldehyde treatment. HNE significantly inhibits c-myb expression during and after repeated treatments. A single administration of 1 μM HNE decreases c-myb mRNA at 1 hour whereas 10 μM HNE inhibits c-myb expression from 3 to 6 hours after treatment, and then the expression returns to the control level. By contrast, c-fos expression and intracellular cAMP concentration do not show any significant change after HNE treatments.

Original languageEnglish
Pages (from-to)589-593
Number of pages5
JournalBiochemical and Biophysical Research Communications
Volume227
Issue number2
DOIs
Publication statusPublished - Oct 14 1996

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology

Fingerprint Dive into the research topics of '4-hydroxynonenal specifically inhibits c-myb but does not affect c-fos expressions in HL-60 cells'. Together they form a unique fingerprint.

Cite this