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Updated: Jan 27, 2026
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siRNA Screening to Identify Ubiquitin and Ubiquitin-like System Regulators of Biological Pathways in Cultured Mammalian Cells
Published on: May 24, 2014
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Ubiquitination-based Classification and a Prognostic Signature Identify the Role of TRIM21 in Sarcoma Progression.
Lin Zhang1, Weihao Lin2,3, Jinhui Liu3
1Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital and Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, 518116, China.
Current Medicinal Chemistry
|January 26, 2026
Summary
This study classifies sarcoma patients using ubiquitination genes, aiding prognosis and immunotherapy prediction. TRIM21 was found to suppress sarcoma progression, offering a potential therapeutic target.
Area of Science:
- Oncology
- Molecular Biology
- Genomics
Background:
- Sarcomas are aggressive mesenchymal tumors with limited treatment options.
- Ubiquitination, a key post-translational modification, significantly influences cancer development and progression.
Purpose of the Study:
- To classify sarcoma patients based on ubiquitination-related gene expression.
- To identify a prognostic signature for sarcoma.
- To investigate the role of TRIM21 in sarcoma progression.
Main Methods:
- Transcriptomic data analysis of 256 sarcoma patients from The Cancer Genome Atlas (TCGA).
- Identification and validation of a ubiquitination-related gene signature.
- Subgroup analyses and cellular experiments to explore TRIM21 function.
Main Results:
- Two distinct ubiquitination-related patient clusters with varying survival outcomes and tumor microenvironments were identified.
- A prognostic signature comprising LRRC41, RNF125, TRIM21, and UBE3D was developed and validated.
- TRIM21 overexpression demonstrated a tumor-suppressive role in sarcoma progression.
Conclusions:
- A novel classification of sarcoma patients based on ubiquitination genes was established.
- The developed prognostic model and classification can improve predictions for patient prognosis and immunotherapy response.
- TRIM21 emerges as a potential therapeutic target for sarcoma treatment.
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