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Published on: May 14, 2016
Disrupting Cell Cycle Machinery: CREPT Is an Emerging Target in Cancer Therapy
Umar Farooq1, Jun Li1, Zhijie Chang2
1Jinfeng Laboratory, No. 313 Jinyue Road, High-Tech Zone, Chongqing 401329, China.
Abstract:
The transcriptional co-factor cell-cycle-related and expression-elevated protein in tumors (CREPT) has emerged as a critical driver of the cell cycle and a significant contributor to tumorigenesis. The aberrant expression or upregulation of CREPT boosts multiple signaling pathways, including Wnt/β-catenin, STAT3 and NF-κB/TNFR2, which are frequently dysregulated in various cancers and are associated with poor overall survival. In preclinical studies, CREPT knockdown via shRNA has demonstrated sustained tumor growth regression. Recent researches have uncovered additional functions of CREPT, including roles in metabolic regulation, tissue repair, and microenvironmental remodeling, further establishing it as a pleiotropic transcriptional regulator. Currently, there is no therapeutic agent that directly inhibits CREPT expression in clinic. However, miRNAs and other methods have been used to target CREPT, which have yielded useful results in inhibiting tumor growth. In this review, we discuss the role of CREPT in the hallmarks of cancer and propose that targeting CREPT will reverse tumor growth and may improve the immune checkpoint inhibitors in combination in CREPT-driven cancers.
Insights
Cell-cycle-related and expression-elevated protein in tumors (CREPT) drives cancer by activating key pathways. Targeting CREPT shows promise for reversing tumor growth and enhancing immunotherapies.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Genetics
Background:
- Cell-cycle-related and expression-elevated protein in tumors (CREPT) is a transcriptional co-factor.
- CREPT dysregulation drives tumorigenesis by activating oncogenic signaling pathways like Wnt/β-catenin, STAT3, and NF-κB/TNFR2.
- Aberrant CREPT expression correlates with poor patient survival across various cancers.
Purpose of the Study:
- To review the multifaceted roles of CREPT in cancer.
- To explore CREPT's involvement in the hallmarks of cancer.
- To propose CREPT as a therapeutic target for cancer treatment.
Main Methods:
- Review of preclinical studies involving CREPT knockdown using shRNA.
- Analysis of research on CREPT's functions in metabolic regulation, tissue repair, and microenvironmental remodeling.
- Examination of current strategies targeting CREPT, including miRNA-based approaches.
Main Results:
- CREPT knockdown demonstrated sustained tumor growth regression in preclinical models.
- CREPT regulates multiple cancer-promoting signaling pathways.
- Emerging evidence highlights CREPT's pleiotropic functions beyond cell cycle control.
Conclusions:
- Targeting CREPT holds significant potential to reverse tumor progression.
- Combining CREPT inhibition with immune checkpoint inhibitors may improve efficacy in CREPT-driven cancers.
- Further research into direct CREPT inhibitors is warranted for clinical application.
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