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Natural compounds with proteasome inhibitory activity for cancer prevention and treatment

H Yang1, K R Landis-Piwowar, D Chen

  • 1The Prevention Program, Barbara Ann Karmanos Cancer Institute, School of Medicine, Wayne State University, Detroit, Michigan 48201, USA.

Current Protein & Peptide Science
|June 10, 2008
PubMed

Insights

The proteasome degrades proteins, and inhibiting it shows promise for cancer treatment. Natural compounds also exhibit proteasome inhibitory activity, offering potential anticancer applications.

Area of Science:

  • Molecular Biology
  • Biochemistry
  • Pharmacology

Background:

  • The proteasome is a crucial cellular complex responsible for protein degradation, essential for normal cellular function.
  • The ubiquitin-proteasome system regulates key cellular processes like cell cycle, proliferation, and apoptosis.
  • Cancer cells exhibit increased sensitivity to proteasome inhibition, suggesting therapeutic potential.

Purpose of the Study:

  • To review the structure and biological activities of the proteasome.
  • To summarize natural compounds with proteasome inhibitory activity.
  • To discuss the potential of natural proteasome inhibitors in cancer prevention and treatment.

Main Methods:

  • Literature review of proteasome function and inhibitors.
  • Analysis of studies on natural compounds with proteasome inhibitory effects.
  • Synthesis of information on clinical trials and therapeutic potential.

Main Results:

  • Proteasome inhibition is a validated anticancer strategy, exemplified by Bortezomib (Velcade).
  • Several natural compounds, including lactacystin and green tea polyphenols, demonstrate potent proteasome inhibition.
  • Natural proteasome inhibitors show promise as chemopreventive, chemotherapeutic, and radiosensitizing agents.

Conclusions:

  • The proteasome is a significant target for anticancer drug development.
  • Natural compounds offer a promising avenue for novel cancer therapies.
  • Further research into natural proteasome inhibitors could lead to new cancer treatments and preventative strategies.

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