Volume 31, Issue 6 p. 629-641
Review article

Sex steroid receptors in skeletal differentiation and epithelial neoplasia: is tissue-specific intervention possible?

John A. Copland

John A. Copland

Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Jacksonville, FL, USA

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Melinda Sheffield-Moore

Melinda Sheffield-Moore

Division of Endocrinology, Internal Medicine, University of Texas Medical Branch, Galveston, TX, USA

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Nina Koldzic-Zivanovic

Nina Koldzic-Zivanovic

School of Pharmacy, University of Charleston, Charleston, VA, USA

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Sean Gentry

Sean Gentry

Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, USA

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George Lamprou

George Lamprou

1st Department of Pediatrics, University of Athens, Thivon and Levadias, Athens, Greece

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Fotini Tzortzatou-Stathopoulou

Fotini Tzortzatou-Stathopoulou

1st Department of Pediatrics, University of Athens, Thivon and Levadias, Athens, Greece

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Vassilis Zoumpourlis

Vassilis Zoumpourlis

Biomedical Applications, National Hellenic Research Foundation, Athens, Greece

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Randall J. Urban

Randall J. Urban

Division of Endocrinology, Internal Medicine, University of Texas Medical Branch, Galveston, TX, USA

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Spiros A. Vlahopoulos

Corresponding Author

Spiros A. Vlahopoulos

Biomedical Applications, National Hellenic Research Foundation, Athens, Greece

National Hellenic Research Foundation, Biomedical Applications, 48 Vassileos Constantinou, 11635 Athens, Greece.Search for more papers by this author
First published: 14 May 2009
Citations: 12

Abstract

Sex steroids, through their receptors, have potent effects on the signal pathways involved in osteogenic or myogenic differentiation. However, a considerable segment of those signal pathways has a prominent role in epithelial neoplastic transformation. The capability to intervene locally has focused on specific ligands for the receptors. Nevertheless, many signals are mapped to interactions of steroid receptor motifs with heterologous regulatory proteins. Some of those proteins interact with the glucocorticoid receptor and other factors essential to cell fate. Interactions of steroid receptor domain motifs with heterologous proteins affect specific target pathways; consequently, manipulation of specified protein modules complexed with steroid receptors may be a next major step for enhancing molecular targeted therapeutics. In the future, intervention at specific sections of receptor primary sequence may prove therapeutically more efficient in targeting pathways of choice than ligand selectivity can be.

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