Foxo-mediated Bim transcription is dispensable for the apoptosis of hematopoietic cells that is mediated by this BH3-only protein

Herold, Marco J.; Rohrbeck, Leona; Lang, Mathias J.; Grumont, Raelene; Gerondakis, Steve; Tai, Lin; Bouillet, Philippe; Kaufmann, Thomas; Strasser, Andreas (2013). Foxo-mediated Bim transcription is dispensable for the apoptosis of hematopoietic cells that is mediated by this BH3-only protein. EMBO REPORTS, 14(11), pp. 992-998. Nature 10.1038/embor.2013.152

Preview	Text Herold_REV_EMBO_Reports_BORIS39538.pdf - Accepted Version Available under License Publisher holds Copyright. Download (453kB) | Preview
	Text embor2013152a.pdf - Published Version Restricted to registered users only Available under License Publisher holds Copyright. Download (777kB)

The BH3-only protein Bim is a critical initiator of apoptosis in hematopoietic cells. Bim is upregulated in response to growth factor withdrawal and in vitro studies have implicated the transcription factor Foxo3a as a critical inducer. To test the importance of this regulation in vivo, we generated mice with mutated Foxo-binding sites within the Bim promoters (Bim(ΔFoxo/ΔFoxo)). Contrary to Bim-deficient mice, Bim(ΔFoxo/ΔFoxo) mice had a normal hematopoietic system. Moreover, cytokine-dependent haematopoietic cells from Bim(ΔFoxo/ΔFoxo) and wt mice died at similar rates. These results indicate that regulation of Bim by Foxo transcription factors is not critical for the killing of hematopoietic cells.

Interest & Impact

Downloads

374 since deposited on 06 Dec 2013
10 in the past 12 months

Citations

5 Citations in Web of Science ®
6 Citations in Scopus

Search

in Google Scholar™

Services

Actions (login required)

Edit item

Actions (login required)

Edit item