Targeting Deubiquitinating Enzymes and Autophagy in Cancer

Area of Science:

• Molecular Biology
• Cellular Biology
• Oncology

Background:

• Cellular homeostasis relies on precise regulation of intracellular protein content.
• Protein degradation occurs via the autophagosome-lysosome and ubiquitin-proteasome pathways.
• Dysregulation of these pathways is common in cancer, presenting them as therapeutic targets.

Purpose of the Study:

• To review the rationale and progress in targeting the ubiquitin-proteasome system (UPS) and autophagy in cancer therapy.
• To explore the potential of targeting deubiquitinating enzymes within the UPS.
• To evaluate the synergistic effects of simultaneously targeting both protein degradation systems.

Main Methods:

• Literature review and analysis of current research on protein degradation pathways in cancer.
• Examination of therapeutic strategies targeting the UPS and autophagy.
• Discussion of the role of deubiquitinating enzymes in cancer.

Main Results:

• The UPS and autophagy are frequently dysregulated in various cancer types.
• Deubiquitinating enzymes of the UPS are key targets due to their oncogenic roles.
• Evidence suggests combined targeting of UPS and autophagy offers enhanced cancer cell killing.

Conclusions:

• Targeting protein degradation pathways, including deubiquitinating enzymes, is a promising strategy in oncology.
• Simultaneous inhibition of the UPS and autophagy may provide a synergistic approach for effective cancer treatment.