alexa SPARC and DNA methylation: possible diagnostic and therapeutic implications in gastrointestinal cancers.
Molecular Biology

Molecular Biology

Journal of Cytology & Histology

Author(s): Nagaraju GP, ElRayes BF

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Abstract DNA methylation is a major contributor to epigenetic alterations and as such is a potential biomarker and therapeutic target in gastrointestinal malignancies. DNA methylation is commonly observed in several Gastrointestinal (GI) malignancies including pancreatic and colorectal cancer. Methylation results in decreased expression of tumor suppressor genes. Secreted protein acidic and rich in cysteine (SPARC) is a tumor suppressor gene that can be functionally inactivated through methylation. SPARC is commonly dysregulated in GI malignancies. Inhibition of DNA methylation can reverse the silencing of SPARC. In the present review, we will discuss recent advances in our understanding of the features of DNA methylation that pertain to SPARC, focusing on their functional and clinical relevance in GI carcinogenesis. Copyright © 2012 Elsevier Ireland Ltd. All rights reserved. This article was published in Cancer Lett and referenced in Journal of Cytology & Histology

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