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Complexe I mitochondrial dysfunction in HDAC5 depleted cancer cells induces glucose-dependent metabolic reprogrammation.
Hendrick, Elodie; Matheus, Nicolas; Peixoto, Paul et al.
2013Annual Mini symposium 2013
 

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Keywords :
HDAC5; Metabolism; Cancer
Abstract :
[en] Introduction: Histone deacetylases (HDAC) is a family of eighteen enzymes, which modulates the acetylation level of histones and non-histone proteins to regulate gene expression and chromatin structure. Broad-spectrum inhibitors of these enzymes such as SAHA can inhibit tumor growth both in vitro and in vivo and are currently used as anti-cancer agents in clinic. For many years, we are investigating the specific role of individual HDAC members in cancer biology and we have recently demonstrated that specific depletion of HDAC5 using siRNA technology reduced cancer cells proliferation and survival1. Aims: The goal of this study is to further understand the metabolic response of cancer cells to HDAC5 depletion. Results: Screening transcriptomic study demonstrated that HDAC5 depletion induces a deregulation of genes encoding subunits of complex I of the mitochondrial respiratory chain leading to a significant increase of ROS production and inducing uncoupled mitochondrial respiration. In addition, this HDAC5 depletion-induced mitochondrial dysfunction provokes metabolic adaptation associated with increased importance of glucose. Indeed, interference with glucose supply in HDAC5-depleted cancer cells significantly increases apoptotic cell death suggesting that glucose deprivation might be combined to HDAC5 inhibition as a therapeutic strategy to kill cancer cells. Conclusion: Our study demonstrated for the first time that specific HDAC5 inhibition induces alteration of gene expression encoding mitochondrial proteins in cancer cells and provide insight into a valuable experimental strategy for manipulation of specific HDAC5 inhibition and glucose metabolism in therapy against cancer. 1.Peixoto, P. et al. HDAC5 is required for maintenance of pericentric heterochromatin, and controls cell-cycle progression and survival of human cancer cells. Cell death and differentiation, 2012; 1-14. elodie.hendrick@student.ulg.ac.be
Disciplines :
Life sciences: Multidisciplinary, general & others
Author, co-author :
Hendrick, Elodie ;  Université de Liège > Département des sciences de la vie > Génétique et biologie moléculaires animales
Matheus, Nicolas ;  Université de Liège - ULiège > Form. doc. sc. bioméd. & pharma.
Peixoto, Paul ;  Université de Liège > Département des sciences biomédicales et précliniques > GIGA-R : Labo de recherche sur les métastases
Polese, Catherine ;  Université de Liège - ULiège > Form. doc. sc. bioméd. & pharma.
Blomme, Arnaud  ;  Université de Liège - ULiège > Doct. sc. bioméd. & pharma. (Bologne)
Mouithys-Mickalad, Ange ;  Université de Liège > Centre de l'oxygène : Recherche et développement (C.O.R.D.)
Serteyn, Didier  ;  Université de Liège > Dép. clinique des animaux de compagnie et des équidés (DCA) > Anesthésiologie gén. et pathologie chirurg. des grds animaux
De Tullio, Pascal ;  Université de Liège > Département de pharmacie > Chimie pharmaceutique
Elmoualij, Benaïssa ;  Université de Liège > Département des sciences biomédicales et précliniques > Histologie
Castronovo, Vincenzo ;  Université de Liège > Département des sciences biomédicales et précliniques > Biologie générale et cellulaire
Mottet, Denis ;  Université de Liège > Département des sciences de la vie > Génétique et biologie moléculaires animales
Language :
English
Title :
Complexe I mitochondrial dysfunction in HDAC5 depleted cancer cells induces glucose-dependent metabolic reprogrammation.
Publication date :
13 September 2013
Number of pages :
A0
Event name :
Annual Mini symposium 2013
Event organizer :
Olivier Feron
Event place :
Bruxelles, Belgium
Event date :
Du 13 septembre 2013 au 13 septembre 2013
By request :
Yes
Available on ORBi :
since 03 June 2015

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