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Chapter category: Cancer Metastasis

Genetic and Epigenetic Regulation of Maspin Gene Expression in Normal and Tumor Tissue

This chapter appears in the following book:

Maspin

Edited by: Mary J.C. Hendrix
ISBN: 1-58706-097-3
» Get more information about this book at landesbioscience.com «

Chapter authors:
Frederick E. Domann and Bernard W. Futscher


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Maspin, a tumor suppressor gene, encodes a protein that has been shown to restrict breast cancer cell motility, invasion, and metastasis. Expression of the maspin gene is commonly silenced during breast cancer progression, and this loss of expression has been shown to occur at the level of transcription. Silencing of maspin expression in human breast cancer is frequently associated with aberrant cytosine methylation, histone hypoacetylation, and chromatin condensation in the maspin promoter region. The epigenetic changes associated with maspin gene silencing in human breast cancer cells suggest that this gene may be a viable target for pharmacological reactivation. Indeed, maspin gene expression can be reactivated in human breast cancer cells by 5-aza-2'deoxycytidine and trichostatin A, two drugs that inhibit DNA methyltransferase and histone deacetylase, respectively. A deeper understanding of the mechanisms underlying regulation of maspin gene expression in normal and cancer cells will be important in developing new targeted therapies against cancer.

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Additional chapters from this book:

Maspin, a Potential Prognostic Marker for Human Cancers

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Maspin (mammary serine protease inhibitor) is a 42 kDa protein that shares significant sequence homology with several members of the serpin (serine prot...

The Role of Maspin in Human Placental Development

Anuja Dokras, Lynn M.G. Gardner, Dawn A. Kirschmann, Elisabeth A. Seftor and Mary J.C. Hendrix

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The Role of Maspin in Tumor Progression and Normal Development

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Maspin Suppresses Breast Cancer Cell Invasiveness by Modulating Integrin Expression and Function

Richard E.B. Seftor, Valerie A. Odero, Elisabeth A. Seftor and Mary J.C. Hendrix

Although the novel tumor suppressor gene maspin (mammary serine protease inhibitor) was originally isolated from normal mammary epithelium by subtractive hybridization and d...

Genetic and Epigenetic Regulation of Maspin Gene Expression in Normal and Tumor Tissue

Frederick E. Domann and Bernard W. Futscher

Maspin, a tumor suppressor gene, encodes a protein that has been shown to restrict breast cancer cell motility, invasion, and metastasis. Expression of the maspin gene is commonly ...

Maspin and Pericellular Plasminogen Activation in Cell-Matrix Interaction

Shijie Sheng, Hector Biliran Jr. and Richard McGowen

Maspin may offer a unique opportunity to block tumor invasion and metastasis. Maspin expression correlates with normality, and pre-malignant and/or less invasive lesions in breast,...

Maspin and Myoepithelial Cells

Sanford H. Barsky, Paul Kedeshian and Mary L. Alpaugh

Host cellular paracrine regulation of tumor progression is an important determinant of tumor growth, invasion and metastasis but one cell which has largely been ignored in this reg...

Maspin: Functional Insights from a Structural Perspective

Philip A. Pemberton

Since the seminal paper by Zou et al1 identifying the existence of the novel tumor suppressor maspin (mammary serpin), research efforts have largely focused on the mecha...

Maspin in the Sager Laboratory

Ming Zhang, Shijie Sheng and Arthur B. Pardee

Discovery of a disease-related gene marks only the beginning to a series of difficult investigations. In order to establish the functional role of the newly discovered gene, one...

Ruth Sager, Geneticist

Arthur B. Pardee

Ruth Sager named her favorite gene Maspin, mammary serpin protease inhibitor. Expression of this gene is lost in advanced breast cancers and inhibits tumor invasion and metastas...


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