Article (Scientific journals)
Transactivation of vimentin by beta-catenin in human breast cancer cells
Gilles, Christine; Polette, M.; Mestdagt, Mélanie et al.
2003In Cancer Research, 63 (10), p. 2658-2664
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Abstract :
[en] The cytoplasmic and nuclear redistribution of beta-catenin and the de novo expression of vimentin are frequently involved in the epithelial-to-mesenchymal transition associated with increased invasive/migratory properties of epithelial cells. Because beta-catenin can act as a coactivator of transcription through its binding to the T-cell factor (TCF)/lymphoid enhancer factor 1 transcription factor family, we have explored the possibility that beta-catenin/TCF could directly transactivate vimentin. We first compared vimentin expression in relation with the localization of beta-catenin in eight breast cancer cell lines displaying various degrees of invasiveness and in a model of cell migration using human mammary MCF10A cells. We could thus show a cytoplasmic and/or nuclear distribution of beta-catenin in invasive/migratory cells expressing vimentin, but not in noninvasive/stationary vimentin-negative cell lines. In addition, the human vimentin promoter was found to be up-regulated by beta-catenin and TCF-4 cotransfection. Varying with the cellular background, a diminution of this up-regulation was observed when the putative beta-catenin/TCF binding site of the vimentin promoter was mutated. Our results therefore demonstrate that the vimentin promoter is a target of the beta-catenin/TCF pathway and strongly suggest an implication of this regulation in epithelial cell migration/invasion.
Disciplines :
Oncology
Author, co-author :
Gilles, Christine ;  Université de Liège - ULiège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement
Polette, M.
Mestdagt, Mélanie ;  Université de Liège - ULiège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement
Nawrocki-Raby, B.
Ruggeri, Philippe ;  Centre Hospitalier Universitaire de Liège - CHU > Gynécologie-Obstétrique CHR
Birembaut, P.
Foidart, Jean-Michel ;  Université de Liège - ULiège > Département des sciences cliniques > Gynécologie - Obstétrique
Language :
English
Title :
Transactivation of vimentin by beta-catenin in human breast cancer cells
Publication date :
May 2003
Journal title :
Cancer Research
ISSN :
0008-5472
eISSN :
1538-7445
Publisher :
American Association for Cancer Research, Inc. (AACR), Baltimore, United States - Maryland
Volume :
63
Issue :
10
Pages :
2658-2664
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 15 May 2009

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