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Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Endocr+Relat+Cancer 2015 ; 22 (1): T1-T17 Nephropedia Template TP
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The ubiquitin-proteasome system: opportunities for therapeutic intervention in solid tumors #MMPMID24659480
Johnson DE
Endocr Relat Cancer 2015[Feb]; 22 (1): T1-T17 PMID24659480show ga
The destruction of proteins via the ubiquitin-proteasome system is a multi-step, complex process involving polyubiquitination of substrate proteins, followed by proteolytic degradation by the macromolecular 26S proteasome complex. Inhibitors of the proteasome promote the accumulation of proteins that are deleterious to cell survival, and represent promising anti-cancer agents. In multiple myeloma and mantle cell lymphoma, treatment with the first generation proteasome inhibitor bortezomib, or the second generation inhibitor carfilzomib, has demonstrated significant therapeutic benefit in humans. This has prompted US FDA approval of these agents and development of additional second generation compounds with improved properties. There is considerable interest in extending the benefits of proteasome inhibitors to the treatment of solid tumor malignancies. Herein we review progress that has been made in the preclinical development and clinical evaluation of different proteasome inhibitors in solid tumors. In addition, we describe several novel approaches that are currently being pursued for the treatment of solid tumors, including drug combinatorial strategies incorporating proteasome inhibitors, and the targeting of components of the ubiquitin-proteasome system that are distinct from the 26S proteasome complex.