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SOCS1 in cancer: An oncogene and a tumor suppressor
Claudia Beaurivage1, Audrey Champagne1, William S Tobelaim1
1Department of Anatomy and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Canada.
Abstract:
The Suppressor Of Cytokine Signaling 1 (SOCS1) has been extensively investigated in immune cells where it works as a potent inhibitor of inflammation by negative feedback regulation of the cytokine-activated JAK-STAT signaling pathways. SOCS1 is also recognized as a tumor suppressor in numerous cancers and its critical functional relevance in non-immune cells, including epithelial cells, has just begun to emerge. Most notably, conflicting results from clinical and experimental studies suggest that SOCS1 may function as either a tumor suppressor or a tumor promoter, in a cell context-dependent manner. Here, we present an overview of the mechanisms underlying SOCS1 function as a tumor suppressor and discuss the emerging evidences of SOCS1 activity as an oncogene.
Insights
Suppressor Of Cytokine Signaling 1 (SOCS1) inhibits inflammation in immune cells but has a dual role in cancer. Emerging evidence suggests SOCS1 can act as both a tumor suppressor and an oncogene depending on the cellular context.
Area of Science:
- Oncology
- Immunology
- Molecular Biology
Background:
- Suppressor Of Cytokine Signaling 1 (SOCS1) is known for inhibiting inflammation via JAK-STAT pathways in immune cells.
- Its role as a tumor suppressor is established in many cancers.
- Emerging research highlights SOCS1's function in non-immune cells, particularly epithelial cells.
Purpose of the Study:
- To review the mechanisms of SOCS1 as a tumor suppressor.
- To discuss new evidence of SOCS1 acting as an oncogene.
- To explore the context-dependent dual role of SOCS1 in cancer.
Main Methods:
- Literature review of existing studies on SOCS1.
- Analysis of clinical and experimental data.
- Synthesis of findings on SOCS1's tumor suppressor and oncogenic activities.
Main Results:
- SOCS1 functions as a potent inhibitor of cytokine signaling and inflammation.
- Conflicting data exists regarding SOCS1's role in cancer, suggesting context-dependent activity.
- Evidence points to SOCS1 acting as both a tumor suppressor and a tumor promoter (oncogene).
Conclusions:
- SOCS1's function is complex and varies by cell type and cancer context.
- Understanding SOCS1's dual role is crucial for cancer therapy development.
- Further research is needed to elucidate SOCS1's oncogenic mechanisms.
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