Activation of BAG3 by Egr-1 in response to FGF-2 in neuroblastoma cells.

Abstract:

:The co-chaperone protein, BAG3, which belongs to the BAG protein family, has an established antiapoptotic function in different tumor cell lines. Here we demonstrated that treatment of the human neuroblastoma cell line, SK-N-MC, with fibroblast growth factor-2 (FGF-2) results in induction of BAG3 expression. Induction of BAG3 protein by FGF-2 occurs at the transcriptional level; it requires the extracellular regulated kinase1/2 pathway and is dependent on the activity of Egr-1 upon the BAG3 promoter. Targeted suppression of BAG3 by small-interfering RNA results in dysregulation of cell-cycle progression most notably at S and G(2) phases, which corroborates the decreased level of cyclin B1 expression. These observations suggest a new role for BAG3 in regulation of the cell cycle.

journal_name

Oncogene

journal_title

Oncogene

authors

Gentilella A,Passiatore G,Deshmane S,Turco MC,Khalili K

doi

10.1038/onc.2008.142

subject

Has Abstract

pub_date

2008-08-28 00:00:00

pages

5011-8

issue

37

eissn

0950-9232

issn

1476-5594

pii

onc2008142

journal_volume

27

pub_type

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