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The ubiquitin-proteasome system in breast cancer

Dianwen Han1, Lijuan Wang2, Shan Jiang1

  • 1Department of Breast Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China.

Trends in Molecular Medicine
|June 16, 2023
PubMed

Insights

The ubiquitin-proteasome system (UPS) is crucial in breast cancer. Understanding its components can lead to new targeted therapies beyond current proteasome inhibitors.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Oncology

Background:

  • The ubiquitin-proteasome system (UPS) regulates protein stability and is implicated in breast cancer pathogenesis.
  • Current breast cancer treatments utilize proteasome inhibitors, showing clinical efficacy.
  • Other UPS components are targeted in preclinical studies but lack clinical application.

Purpose of the Study:

  • To comprehensively understand the role of ubiquitination in breast cancer.
  • To identify potential tumor promoters and suppressors within the UPS family.
  • To guide the development of novel, specific UPS-targeting drugs for breast cancer.

Main Methods:

  • Literature review and analysis of UPS involvement in breast cancer.
  • Examination of preclinical data for UPS inhibitors and stimulators.
  • Identification of key UPS components relevant to breast cancer progression.

Main Results:

  • The UPS plays a significant role in breast cancer through regulation of target proteins.
  • Proteasome inhibitors are clinically validated, while other UPS targets show preclinical promise.
  • Specific UPS members may act as tumor promoters or suppressors.

Conclusions:

  • A deeper understanding of ubiquitination in breast cancer is essential.
  • Targeting specific UPS components offers a promising avenue for developing advanced breast cancer therapies.
  • Further research into UPS modulators could yield more effective and specific breast cancer treatments.
Keywords:
26S proteasomeUPSbreast cancermolecular mechanismstherapeutic targets

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