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Updated: Aug 5, 2025

Author Spotlight: Advancements in Molecular Biomarker Testing for Non-Squamous Non-Small Cell Lung Cancer
Published on: September 8, 2023
Targeted therapy based on ubiquitin-specific proteases, signalling pathways and E3 ligases in non-small-cell lung
Yu-Chen Yang1, Can-Jun Zhao1, Zhao-Feng Jin2
1Department of Traditional Chinese Medicine, Tangdu Hospital, Air Force Medical University, Xi'an, China.
Abstract:
Lung cancer is one of the most common malignant tumours worldwide, with the highest mortality rate. Approximately 1.6 million deaths owing to lung cancer are reported annually; of which, 85% of deaths occur owing to non-small-cell lung cancer (NSCLC). At present, the conventional treatment methods for NSCLC include radiotherapy, chemotherapy, targeted therapy and surgery. However, drug resistance and tumour invasion or metastasis often lead to treatment failure. The ubiquitin-proteasome pathway (UPP) plays an important role in the occurrence and development of tumours. Upregulation or inhibition of proteins or enzymes involved in UPP can promote or inhibit the occurrence and development of tumours, respectively. As regulators of UPP, ubiquitin-specific proteases (USPs) primarily inhibit the degradation of target proteins by proteasomes through deubiquitination and hence play a carcinogenic or anticancer role. This review focuses on the role of USPs in the occurrence and development of NSCLC and the potential of corresponding targeted drugs, PROTACs and small-molecule inhibitors in the treatment of NSCLC.
Insights
Ubiquitin-specific proteases (USPs) are key regulators in non-small-cell lung cancer (NSCLC) development. Targeting USPs with PROTACs and inhibitors offers promising new therapeutic strategies for NSCLC treatment.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Lung cancer, particularly non-small-cell lung cancer (NSCLC), has a high global mortality rate.
- Conventional NSCLC treatments face challenges due to drug resistance and metastasis.
- The ubiquitin-proteasome pathway (UPP) is crucial in tumor development, with ubiquitin-specific proteases (USPs) playing a significant role.
Purpose of the Study:
- To review the role of USPs in NSCLC occurrence and progression.
- To explore the therapeutic potential of targeting USPs in NSCLC.
Main Methods:
- Literature review focusing on the ubiquitin-proteasome pathway and USPs in NSCLC.
- Analysis of current and emerging targeted therapies, including PROTACs and small-molecule inhibitors.
Main Results:
- USPs regulate protein degradation via deubiquitination, influencing NSCLC development.
- Dysregulation of USPs can promote or inhibit tumor progression.
- Targeting specific USPs presents a viable strategy for NSCLC treatment.
Conclusions:
- USPs are critical regulators in NSCLC pathogenesis.
- Targeted therapies like PROTACs and small-molecule inhibitors offer novel treatment avenues for NSCLC by modulating USP activity.
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