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Published on: August 25, 2021
TRIM21 - A potential novel therapeutic target in cancer
1Department of Stem Cell Biology, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Post Box No. 1982, Dammam 31441, Saudi Arabia.
Abstract:
Tripartite motif-containing protein 21 (TRIM21) is well known to be involved in innate immunity, systemic lupus erythematosus and Sjögren's syndrome. In addition, TRIM21 involvement in cancer proliferation has been observed. However, the clinical significance of TRIM21 and its role in cancer cell proliferation and suppression remains elusive. Here we discuss the effects of TRIM21 on major cancer promoting proteins such as NF-κB, STAT3, BCL2, p53, p27 and Snail, comparing its signaling pathways under normal conditions and in the presence of a variety of carcinogenesis effectors (oncogenic, genotoxic and UV irradiation). Depending on the cancer type and the carcinogenesis effector, TRIM21 may enhance cancer proliferation, or alternatively it may increase the ubiquitination of many cancer-triggering proteins, resulting in their proteasomal degradation. This indicates the importance of TRIM21 in cancer proliferation and/or apoptosis and suggests its potential as a novel cancer therapeutic target.
Insights
Tripartite motif-containing protein 21 (TRIM21) has a dual role in cancer, potentially promoting or suppressing tumor growth. Understanding TRIM21
Area of Science:
- Immunology
- Oncology
- Molecular Biology
Background:
- Tripartite motif-containing protein 21 (TRIM21) is implicated in innate immunity and autoimmune diseases.
- TRIM21's role in cancer proliferation and suppression is not fully understood.
- Its clinical significance in oncology remains elusive.
Purpose of the Study:
- To elucidate the multifaceted role of TRIM21 in cancer.
- To investigate TRIM21's impact on key cancer-promoting proteins.
- To compare TRIM21 signaling pathways under normal and carcinogenic conditions.
Main Methods:
- Analysis of TRIM21 effects on NF-κB, STAT3, BCL2, p53, p27, and Snail.
- Comparison of TRIM21 signaling pathways under normal conditions.
- Evaluation of TRIM21 activity in the presence of oncogenic, genotoxic, and UV irradiation stimuli.
Main Results:
- TRIM21 exhibits context-dependent effects on cancer proliferation.
- It can enhance cancer cell growth or promote apoptosis via ubiquitination.
- TRIM21 influences major cancer-related signaling pathways.
Conclusions:
- TRIM21 plays a significant, dual role in cancer proliferation and/or apoptosis.
- Its function is modulated by cancer type and specific carcinogenic effectors.
- TRIM21 represents a potential therapeutic target for cancer treatment.
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