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Published on: July 28, 2010
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The IGF2BP3-COPS7B Axis Facilitates mRNA Translation to Drive Colorectal Cancer Progression
Jing Tang1, Shuoshuo Wang1, Mingjiao Weng1
1Department of Pathology, Harbin Medical University, Harbin, China.
Cancer Research
|August 10, 2023
Summary
Colorectal cancer elevates protein synthesis by increasing translational efficiency (TE). The IGF2BP3-COPS7B pathway drives this, offering a potential therapeutic target for this aggressive disease.
Area of Science:
- Molecular biology
- Oncology
- Proteomics
Background:
- Genomic and transcriptomic changes in colorectal cancer are well-studied, but protein abundance is not always predictable.
- Posttranscriptional and translational regulation significantly impact gene expression, influencing cancer development.
Purpose of the Study:
- To identify key molecular mechanisms driving colorectal cancer progression.
- To investigate the role of translational efficiency (TE) as a hallmark of colorectal cancer.
- To uncover novel therapeutic targets for colorectal cancer treatment.
Main Methods:
- Comparative analysis of transcriptomic and proteomic data from colorectal cancer patients and normal cells.
- Ribosome-protected mRNA sequencing to assess translational activity.
- Identification and functional characterization of key regulatory proteins and their targets.
Main Results:
- Increased translational efficiency (TE) is a significant hallmark of colorectal cancer.
- COP9 signalosome subunit 7B (COPS7B) showed elevated TE and protein levels without transcriptional changes.
- Insulin-like growth factor 2 mRNA-binding protein 3 (IGF2BP3) was identified as a key regulator enhancing COPS7B TE.
- COPS7B facilitates ribosome biogenesis and translation initiation, promoting cancer growth and metastasis.
Conclusions:
- Elevated mRNA translation is a critical feature of colorectal cancer.
- The IGF2BP3-COPS7B axis drives increased protein synthesis in colorectal cancer.
- Targeting the IGF2BP3-COPS7B pathway presents a promising therapeutic strategy for colorectal cancer.
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