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Anti-Cancer Therapy: Targeting the Mevalonate Pathway

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The mevalonate pathway has become an important target for anti-cancer therapy. Manipulation of this pathway results in alteration of malignant cell growth and survival in cell culture and animal models, with promising potential for application in human cancers. Mevalonate is synthesized from 3-hydroxy-3- methylglutaryl coenzyme A (HMG-CoA). Mevalonate is further metabolized to farnesyl pyrophosphate (FPP), which is the precursor for sterols. In addition, the farnesyl moiety from FPP is utilized for post-translational modification of proteins including small GTPases, such as Ras and Ras related proteins, which play a role in malignant transformation of cells. FPP is a precursor for geranylgeranyl pyrophosphate (GGPP), which is similarly involved in post-translational modification of proteins. There has been intense interest in manipulating the pathway through HMG-CoA reductase inhibition. More recently, the focus has been on manipulating the pathway by post-translational modification of key regulatory proteins through farnesyl prenyl transferase (FPTase) or geranylgeranyl prenyl transferase (GGPTase) inhibition. This review focuses on the mevalonate pathway and the application of rational drug therapies to manipulate this pathway. Included in the review are a summary of agents demonstrating success in preclinical investigations such as; farnesyl transferase inhibitors, geranylgeranyl transferase inhibitors, dual inhibitors, statins, bisphosphonates, histone deacetylase inhibitors and other compounds. While these agents have shown preclinical success, translation to success in clinical trials has been more difficult. These clinical trials are reviewed along with evaluation of some of the potential problems with these agents in their clinical application.

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Keywords: FPTase; Mevalonate pathway; Ras proteins; cancer therapy; isoprenoids

Document Type: Research Article

Affiliations: Departments of Internal Medicine and Pharmacology, C32 GH, University of Iowa, Iowa City, IA 52242, USA.

Publication date: February 1, 2006

More about this publication?
  • Current Cancer Drug Targets aims to cover all the latest and outstanding developments on the medicinal chemistry, pharmacology, molecular biology, genomics and biochemistry of contemporary molecular drug targets involved in cancer, e.g. disease specific proteins, receptors, enzymes, genes.
    Each issue of the journal contains a series of timely in-depth reviews written by leaders in the field covering a range of current topics on drug targets involved in cancer.
    As the discovery, identification, characterization and validation of novel human drug targets for anti-cancer drug discovery continues to grow; this journal has become essential reading for all pharmaceutical scientists involved in drug discovery and development.
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