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Journal of Biomedicine and Biotechnology
Volume 2011 (2011), Article ID 856985, 15 pages
Review Article

Manipulating Protein Acetylation in Breast Cancer: A Promising Approach in Combination with Hormonal Therapies?

1IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, U896, Université Montpellier1, CRLC Val d'Aurelle Paul Lamarque, Montpellier, 34298, France
2CRLC Claudius Regaud, 31052 Toulouse Cedex, France
3Laboratoire de Biologie Cellulaire et Hormonale, CHRU Arnaud de Villeneuve, 34090 Montpellier, France

Received 13 July 2010; Accepted 3 November 2010

Academic Editor: Minoru Yoshida

Copyright © 2011 Aurélien Linares et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Estrogens play an essential role in the normal physiology of the breast as well as in mammary tumorigenesis. Their effects are mediated by two nuclear estrogen receptors, ERα and β, which regulate transcription of specific genes by interacting with multiprotein complexes, including histone deacetylases (HDACs). During the past few years, HDACs have raised great interest as therapeutic targets in the field of cancer therapy. In breast cancer, several experimental arguments suggest that HDACs are involved at multiple levels in mammary tumorigenesis: their expression is deregulated in breast tumors; they interfere with ER signaling in intricate ways, restoring hormone sensitivity in models of estrogen resistance, and they clinically represent new potential targets for HDACs inhibitors (HDIs) in combination with hormonal therapies. In this paper, we will describe these different aspects and underline the clinical interest of HDIs in the context of breast cancer resistance to hormone therapies (HTs).