Τρίτη 7 Απριλίου 2020

Cancers, Vol. 12, Pages 902: Drug Development Targeting the Ubiquitin–Proteasome System (UPS) for the Treatment of Human Cancers

Cancers, Vol. 12, Pages 902: Drug Development Targeting the Ubiquitin–Proteasome System (UPS) for the Treatment of Human Cancers:

cancers-12-00902-g001-550.jpg

Cancers, Vol. 12, Pages 902: Drug Development Targeting the Ubiquitin–Proteasome System (UPS) for the Treatment of Human Cancers

Cancers doi: 10.3390/cancers12040902

Authors:
Xiaonan Zhang
Stig Linder
Martina Bazzaro


Cancer cells are characterized by a higher rate of protein turnover and greater demand for protein homeostasis compared to normal cells. In this scenario, the ubiquitin–proteasome system (UPS), which is responsible for the degradation of over 80% of cellular proteins within mammalian cells, becomes vital to cancer cells, making the UPS a critical target for the discovery of novel cancer therapeutics. This review systematically categorizes all current reported small molecule inhibitors of the various essential components of the UPS, including ubiquitin-activating enzymes (E1s), ubiquitin-conjugating enzymes (E2s), ubiquitin ligases (E3s), the 20S proteasome catalytic core particle (20S CP) and the 19S proteasome regulatory particles (19S RP), as well as their mechanism/s of action and limitations. We also discuss the immunoproteasome which is considered as a prospective therapeutic target of the next generation of proteasome inhibitors in cancer therapies.

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