Bortezomib: Difference between revisions
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In normal cells, the proteasome regulates protein expression and function by degradation of ubiquitylated proteins, and also rids the cell of abnormal or misfolded proteins. Clinical and preclinical data support a role for the proteasome in maintaining the immortal phenotype of myeloma cells, and cell-culture and xenograft data support a similar function in solid tumor cancers. While multiple mechanisms are likely to be involved, proteasome inhibition may prevent degradation of pro-apoptotic factors, thereby triggering programmed cell death in neoplastic cells. Recently, it was found that bortezomib caused a rapid and dramatic change in the levels of intracellular peptides that are produced by the proteasome.<ref name="a16">PMID:23308178</ref> Some intracellular peptides have been shown to be biologically active, and so the effect of bortezomib on the levels of intracellular peptides may contribute to the biological and/or side effects of the drug. | In normal cells, the proteasome regulates protein expression and function by degradation of ubiquitylated proteins, and also rids the cell of abnormal or misfolded proteins. Clinical and preclinical data support a role for the proteasome in maintaining the immortal phenotype of myeloma cells, and cell-culture and xenograft data support a similar function in solid tumor cancers. While multiple mechanisms are likely to be involved, proteasome inhibition may prevent degradation of pro-apoptotic factors, thereby triggering programmed cell death in neoplastic cells. Recently, it was found that bortezomib caused a rapid and dramatic change in the levels of intracellular peptides that are produced by the proteasome.<ref name="a16">PMID:23308178</ref> Some intracellular peptides have been shown to be biologically active, and so the effect of bortezomib on the levels of intracellular peptides may contribute to the biological and/or side effects of the drug. | ||
</StructureSection> | </StructureSection> | ||
== References == | == References == | ||
<references/> | <references/> | ||