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Ubiquitin-specific protease 7 (USP7): an emerging drug target for cancer treatment
Laura D Carreira1,2, Rita I Oliveira1,2, Vânia M Moreira1,2
1Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal.
Introduction:
Ubiquitin-specific protease 7 (USP7) also known as herpesvirus-associated ubiquitin-specific protease (HAUSP) is a well-characterized cysteine protease that belongs to the largest subfamily of deubiquitinating enzymes (DUBs). It is involved in multiple signaling pathways, some of them dysregulated in malignant tumors. USP7 inhibition can lead to cell growth arrest and apoptosis through inhibition of tumor promoters and stabilization of tumor suppressors, making it a promising druggable target for cancer therapy.
Areas Covered:
This review covers the structure of USP7, its function in multiple signaling pathways and relevance in cancer, as well as recent advances and future perspectives in the development of USP7 inhibitors for cancer therapy.
Expert Opinion:
Literature reports display the multiple antitumor activities of USP7 inhibitors, both in vitro and in vivo. Nonetheless, none have entered clinical trials so far, highlighting the need to delve into a deeper understanding of USP7 binding sites and the development of more accurate compound screening methods. Despite these challenges, further development of USP7 inhibitors is promising as a valuable new approach for cancer treatment, including the ability to address chemoresistance.
Insights
Ubiquitin-specific protease 7 (USP7) is a promising cancer target. USP7 inhibitors show antitumor activity, but further research is needed for clinical development and overcoming chemoresistance.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- Ubiquitin-specific protease 7 (USP7), also known as HAUSP, is a deubiquitinating enzyme.
- USP7 plays a role in signaling pathways frequently dysregulated in cancers.
- USP7 inhibition offers a potential therapeutic strategy by inducing apoptosis and cell cycle arrest.
Purpose of the Study:
- To review the structure and function of USP7 in cancer.
- To discuss the relevance of USP7 in malignant tumors.
- To explore recent advances and future directions in the development of USP7 inhibitors for cancer therapy.
Main Methods:
- Literature review of USP7 structure and function.
- Analysis of USP7's role in cancer signaling pathways.
- Examination of current USP7 inhibitor research and development.
Main Results:
- USP7 inhibitors demonstrate significant in vitro and in vivo antitumor activities.
- Despite promising preclinical data, no USP7 inhibitors have advanced to clinical trials.
- Challenges remain in understanding USP7 binding sites and optimizing compound screening.
Conclusions:
- USP7 is a druggable target with potential for novel cancer therapies.
- Further research into USP7 binding and screening methods is crucial for clinical translation.
- USP7 inhibitors may offer a valuable approach to combatting cancer, including chemoresistant forms.
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