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Eignerová B, Sedlák D, Dračínský M, Bartůněk P, Kotora M. Synthesis and Biochemical Characterization of a Series of 17α-Perfluoroalkylated Estradiols as Selective Ligands for Estrogen Receptor α. J Med Chem 2010; 53:6947-53. [DOI: 10.1021/jm100563h] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Barbara Eignerová
- Department of Organic and Nuclear Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43 Prague 2, Czech Republic
- Institute of Organic Chemistry and Biochemistry AS CR, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - David Sedlák
- Center for Chemical Genetics, Institute of Molecular Genetics AS CR, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and Biochemistry AS CR, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Petr Bartůněk
- Center for Chemical Genetics, Institute of Molecular Genetics AS CR, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Martin Kotora
- Department of Organic and Nuclear Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43 Prague 2, Czech Republic
- Institute of Organic Chemistry and Biochemistry AS CR, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
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Capacity of type I and II ligands to confer to estrogen receptor alpha an appropriate conformation for the recruitment of coactivators containing a LxxLL motif-Relationship with the regulation of receptor level and ERE-dependent transcription in MCF-7 cells. Biochem Pharmacol 2009; 79:746-57. [PMID: 19879249 DOI: 10.1016/j.bcp.2009.10.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2009] [Revised: 10/19/2009] [Accepted: 10/19/2009] [Indexed: 01/15/2023]
Abstract
Estrogen receptor alpha (ERalpha) belongs to the superfamily of nuclear receptors and as such acts as a ligand-modulated transcription factor. Ligands elicit in ERalpha conformational changes leading to the recruitment of coactivators required for the transactivation of target genes via cognate response elements. In many cells, activated ERalpha also undergoes downregulation by proteolysis mediated by the ubiquitin/proteasome system. Although these various molecular processes have been well characterized, little is known as to which extent they are interrelated. In the present study, we used a panel of type I (estradiol derivatives and "linear", non-steroidal ligands) and type II ("angular" ligands) estrogens, in order to identify possible relationships between ligand binding affinity, recruitment of LxxLL-containing coactivators, ERalpha downregulation in MCF-7 cells and related transactivation activity of ligand-bound ERalpha. For type I estrogens, there was a clear-cut relationship between ligand binding affinity, hydrophobicity around C-11 of estradiol and ability of ERalpha to associate with LxxLL motifs, both in cell-free condition and in vivo (MCF-7 cells). Moreover, LxxLL motif recruitment by ERalpha seemed to be a prerequisite for the downregulation of the receptor. By contrast, type II ligands, as well as estradiol derivatives bearing a bulky side chain at 11beta, had much less tendency to promote ERalpha-LxxLL interaction or even behaved as antagonists in this respect, in agreement with the well known partial estrogenicity/antiestrogenicity of some of these compounds. Interestingly, some type II ligands which antagonized LxxLL motif recruitment were nonetheless able to enhance ERalpha-mediated gene transactivation.
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Agouridas V, Magnier E, Blazejewski JC, Laïos I, Cleeren A, Nonclercq D, Laurent G, Leclercq G. Effect of Fluorination on the Pharmacological Profile of 11β Isomers of Fulvestrant in Breast Carcinoma Cells. J Med Chem 2009; 52:883-7. [DOI: 10.1021/jm801154q] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Vangelis Agouridas
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St. Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France, Laboratoire J.-C. Heuson de Cancérologie Mammaire, Institut Jules Bordet, Service de Médecine, 1, Université Libre de Bruxelles, 1 Rue Héger-Bordet, B-1000 Brussels, Belgium, and Service d’Histologie et de Cytologie Expérimentale, Faculté de Médecine et de Pharmacie, Université de Mons-Hainaut, 6 Avenue du Champ de Mars, B7000 Mons, Belgium
| | - Emmanuel Magnier
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St. Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France, Laboratoire J.-C. Heuson de Cancérologie Mammaire, Institut Jules Bordet, Service de Médecine, 1, Université Libre de Bruxelles, 1 Rue Héger-Bordet, B-1000 Brussels, Belgium, and Service d’Histologie et de Cytologie Expérimentale, Faculté de Médecine et de Pharmacie, Université de Mons-Hainaut, 6 Avenue du Champ de Mars, B7000 Mons, Belgium
| | - Jean-Claude Blazejewski
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St. Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France, Laboratoire J.-C. Heuson de Cancérologie Mammaire, Institut Jules Bordet, Service de Médecine, 1, Université Libre de Bruxelles, 1 Rue Héger-Bordet, B-1000 Brussels, Belgium, and Service d’Histologie et de Cytologie Expérimentale, Faculté de Médecine et de Pharmacie, Université de Mons-Hainaut, 6 Avenue du Champ de Mars, B7000 Mons, Belgium
| | - Ioanna Laïos
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St. Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France, Laboratoire J.-C. Heuson de Cancérologie Mammaire, Institut Jules Bordet, Service de Médecine, 1, Université Libre de Bruxelles, 1 Rue Héger-Bordet, B-1000 Brussels, Belgium, and Service d’Histologie et de Cytologie Expérimentale, Faculté de Médecine et de Pharmacie, Université de Mons-Hainaut, 6 Avenue du Champ de Mars, B7000 Mons, Belgium
| | - Anny Cleeren
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St. Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France, Laboratoire J.-C. Heuson de Cancérologie Mammaire, Institut Jules Bordet, Service de Médecine, 1, Université Libre de Bruxelles, 1 Rue Héger-Bordet, B-1000 Brussels, Belgium, and Service d’Histologie et de Cytologie Expérimentale, Faculté de Médecine et de Pharmacie, Université de Mons-Hainaut, 6 Avenue du Champ de Mars, B7000 Mons, Belgium
| | - Denis Nonclercq
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St. Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France, Laboratoire J.-C. Heuson de Cancérologie Mammaire, Institut Jules Bordet, Service de Médecine, 1, Université Libre de Bruxelles, 1 Rue Héger-Bordet, B-1000 Brussels, Belgium, and Service d’Histologie et de Cytologie Expérimentale, Faculté de Médecine et de Pharmacie, Université de Mons-Hainaut, 6 Avenue du Champ de Mars, B7000 Mons, Belgium
| | - Guy Laurent
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St. Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France, Laboratoire J.-C. Heuson de Cancérologie Mammaire, Institut Jules Bordet, Service de Médecine, 1, Université Libre de Bruxelles, 1 Rue Héger-Bordet, B-1000 Brussels, Belgium, and Service d’Histologie et de Cytologie Expérimentale, Faculté de Médecine et de Pharmacie, Université de Mons-Hainaut, 6 Avenue du Champ de Mars, B7000 Mons, Belgium
| | - Guy Leclercq
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St. Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France, Laboratoire J.-C. Heuson de Cancérologie Mammaire, Institut Jules Bordet, Service de Médecine, 1, Université Libre de Bruxelles, 1 Rue Héger-Bordet, B-1000 Brussels, Belgium, and Service d’Histologie et de Cytologie Expérimentale, Faculté de Médecine et de Pharmacie, Université de Mons-Hainaut, 6 Avenue du Champ de Mars, B7000 Mons, Belgium
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