ERK and p38 inhibit the expression of 4E-BP1 repressor of translation through induction of Egr-1

Malvyne Rolli-Derkinderen, Fraņois Machavoine, Jay M Baraban, Annabelle Grolleau, Laura Beretta, Michel Dy

Research output: Contribution to journalArticle

Abstract

4E-BP1 plays a major role in translation by inhibiting cap-dependent translation initiation. Several reports have investigated the regulation of 4E-BP1 phosphorylation, which varies along with cell differentiation and upon various stimulations, but very little is known about the regulation of its expression. In a first part, we show that the expression of 4E-BP1 protein and transcript decreases in hematopoietic cell lines cultivated in the presence of phorbol 12-myristate 13-acetate (PMA). This decrease depends on the activation of the ERK/mitogen-activated protein kinases. 4E-BP1 expression also decreases when the p38/mitogen-activated protein kinase pathway is activated by granulocyte/macrophage colony-stimulating factor but to a lesser extent than with PMA. In a second part, we examine how 4e-bp1 promoter activity is regulated. PMA and granulocyte/macrophage colony-stimulating factor induce Egr-1 expression through ERK and p38 activation, respectively. Using a dominant negative mutant of Egr, ZnEgr, we show that this transcription factor is responsible for the inhibition of 4e-bp1 promoter activity. In a third part we show that histidine decarboxylase, whose activity and expression are inversely correlated with 4E-BP1 expression, is a potential target for the translational machinery. These data (i) are the first evidence of a new role of ERK and p38 on the translational machinery and (ii) demonstrate that 4E-BP1 is a new target for Egr-1.

Original languageEnglish (US)
Pages (from-to)18859-18867
Number of pages9
JournalJournal of Biological Chemistry
Volume278
Issue number21
DOIs
StatePublished - May 23 2003

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Acetates
Granulocyte-Macrophage Colony-Stimulating Factor
Machinery
Chemical activation
Histidine Decarboxylase
Phosphorylation
p38 Mitogen-Activated Protein Kinases
Mitogen-Activated Protein Kinases
Cell Differentiation
Transcription Factors
Cells
Cell Line
phorbol-12-myristate
Proteins

ASJC Scopus subject areas

  • Biochemistry

Cite this

ERK and p38 inhibit the expression of 4E-BP1 repressor of translation through induction of Egr-1. / Rolli-Derkinderen, Malvyne; Machavoine, Fraņois; Baraban, Jay M; Grolleau, Annabelle; Beretta, Laura; Dy, Michel.

In: Journal of Biological Chemistry, Vol. 278, No. 21, 23.05.2003, p. 18859-18867.

Research output: Contribution to journalArticle

Rolli-Derkinderen, Malvyne ; Machavoine, Fraņois ; Baraban, Jay M ; Grolleau, Annabelle ; Beretta, Laura ; Dy, Michel. / ERK and p38 inhibit the expression of 4E-BP1 repressor of translation through induction of Egr-1. In: Journal of Biological Chemistry. 2003 ; Vol. 278, No. 21. pp. 18859-18867.
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