Reference : The proapoptotic C16-ceramide-dependent pathway requires the death-promoting factor B...
Scientific journals : Article
Human health sciences : Pharmacy, pharmacology & toxicology
The proapoptotic C16-ceramide-dependent pathway requires the death-promoting factor Btf in colon adenocarcinoma cells.
Renert, Anne-Francoise [> > > >]
Leprince, Pierre mailto [Université de Liège - ULiège > > CNCM/ Centre fac. de rech. en neurobiologie cell. et moléc. >]
Dieu, Marc [> > > >]
Renaut, Jenny [> > > >]
Raes, Martine [> > > >]
Bours, Vincent mailto [Centre Hospitalier Universitaire de Liège - CHU > > Génétique >]
Chapelle, Jean-Paul mailto [Centre Hospitalier Universitaire de Liège - CHU > > Chimie médicale >]
Piette, Jacques mailto [Université de Liège - ULiège > Département des sciences de la vie > GIGA-R : Virologie - Immunologie - Département des sciences de la vie - GIGA-Research >]
Merville, Marie-Paule [Centre Hospitalier Universitaire de Liège - CHU > > Chimie médicale >]
Fillet, Marianne mailto [Université de Liège - ULiège > Département de pharmacie > Analyse des médicaments >]
Journal of Proteome Research
American Chemical Society
Yes (verified by ORBi)
[en] ceramide ; proteomic ; apoptosis
[en] Ceramides are central molecules in sphingolipid metabolism. They are involved in the regulation of cancer-cell growth, differentiation, senescence and apoptosis. To better understand how these secondary messengers induce their biological effects, adenocarcinoma cells (HCT116) were treated with exogenous long-chain ceramides (C16-ceramide) in order to mimic endogenous sphingolipids. This treatment induced a decrease of cell viability partly due to apoptosis as shown by PARP cleavage and a decrease of pro-caspase 3. Two-dimensional differential in-gel electrophoresis (2D-DIGE) revealed the differential expression of 51 proteins in response to C16-ceramide. These proteins are notably involved in cell proliferation, apoptosis, protein transport and transcriptional regulation. Among them, the cell death-promoting factor Btf was found to be implicated in the apoptotic signal triggered by ceramide. In adenocarcinoma cells, Btf regulates apoptosis related proteins such as Mdm2, p53, BAX and pBcl-2 and thus plays an important role in the ceramide mediated cell death. These findings bring new insight into the proapoptotic ceramide-dependent signaling pathway.
Giga-Signal Transduction
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers ; Professionals ; Students
also: ;

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