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Proteasome Inhibition as a New Therapeutic Principle in Hematological Malignancies

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Abstract:

The intracellular concentration of proteins in both normal and tumor cells are regulated by the balance between the rates of protein synthesis vs. degradation. The ubiquitin-proteasome pathway is the main intracellular cascade for controlled degradation of proteins and has attracted in recent years major interest not only because of its biochemical complexity and the intricate regulation of its function, but also because diverse cell cycle regulators and modulators of apoptosis are subject to regulation by proteasome function, and can therefore be significantly affected by small molecule inhibitors of the proteolytic activity of the proteasome. In fact, bortezomib, the prototypic member of this class of agents, was recently approved by the U.S. Food and Drug Administration for the treatment of advanced multiple myeloma patients. This review article focuses on the exciting recent progress in the use of proteasome inhibitors, with emphasis on the bench-to-bedside research effort which provided the foundation for clinical development of bortezomib for the treatment of multiple myeloma, as well as other hematologic malignancies, such as mantle cell lymphoma.





Keywords: PS-341; Proteasome; apoptosis; bortezomib; combination therapies; multiple myeloma

Document Type: Research Article

DOI: http://dx.doi.org/10.2174/138945006778559247

Affiliations: Jerome Lipper Multiple Myeloma Center, Department of Medical Oncology, Dana Farber Cancer Institute, Department of Medicine, Harvard Medical School, 44 Binney Street, Boston MA 02115, USA.

Publication date: October 1, 2006

More about this publication?
  • Current Drug Targets aims to cover the latest and most outstanding developments on the medicinal chemistry and pharmacology of molecular drug targets e.g. disease specific proteins, receptors, enzymes, genes. Each issue of the journal will be devoted to a single timely topic, with series of in-depth reviews, written by leaders in the field, covering a range of current topics on drug targets. These issues will be organized and led by a guest editor who is a recognized expert in the overall topic. As the discovery, identification, characterisation and validation of novel human drug targets for drug discovery continues to grow; this journal will be essential reading for all pharmaceutical scientists involved in drug discovery and development.
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