Journal
EXPERT OPINION ON THERAPEUTIC TARGETS
Volume 21, Issue 3, Pages 319-331Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14728222.2017.1279604
Keywords
Cancer; DZNep; gene silencing; H3K9 trimethylation; mithramycin; SETDB1
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Introduction: Epigenetic changes lead to aberrant gene expression in cancer. SETDB1, a histone lysine methyltransferase plays an important role in methylation and gene silencing. Aberrant histone methylation at H3K9 by SETDB1 promotes silencing of tumor suppressor genes and thus contributes to carcinogenesis. Recent studies indicate that SETDB1 is abnormally expressed in various human cancer conditions which contributed to enhanced tumor growth and metastasis. Hence, SETDB1 appears to be a promising epigenetic target for therapeutic intervention.Areas covered: In this article, the structural features, localization and functions of SETDB1 are reviewed. Also, an overview of the role of SETDB1 in cancer and other disease mechanisms, the currently studied inhibitors for SETDB1 are mentioned.Expert opinion: Silencing of tumor suppressor genes due to excessive trimethylation at H3K9 by amplified SETDB1 levels is found in various cancerous conditions. Since epigenetic changes are reversible, SETDB1 holds promise as an important therapeutic target for cancer. Therefore, a better understanding of the role of SETDB1 and its interaction with various proteins in cancer-related mechanisms along with therapeutic interventions specific for SETDB1 may improve targeted cancer therapy.
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