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Updated: Sep 2, 2025

In vitro Organoid Culture of Primary Mouse Colon Tumors
Published on: May 17, 2013
CTPS1 inhibition suppresses proliferation and migration in colorectal cancer cells
Fahong Wu1, Yudong Mao1, Tao Ma2
1Department of General Surgery, Hepatic-biliary-pancreatic Institute, Lanzhou University Second Hospital, Lanzhou, China.
Abstract:
Colorectal cancer (CRC) is now the third most prevalent tumor and one of the deadliest cancers worldwide, with an increasing prevalence every year. Therefore, we urgently need to understand the mechanisms regulating the progression of colorectal cancer and find potential diagnostic biomarkers. In this study, we performed an analysis using the TCGA and GEO databases to find a molecular biomarker for the diagnosis of CRC, namely CTPS1. The results of this analysis revealed that CTPS1 could promote tumor proliferation and metastasis. Furthermore, bioinformatics analysis revealed that CTPS1 promoted CRC progression through cell cycle and p53 pathways. Further investigation demonstrated that CTPS1 might be involved in the regulation of CCNB1, RRM2, GTSE1, CDK2 and CHEK2 genes. Moreover, PCR confirmed that CTPS1 regulated GTSE1 and CDK2 molecules. Then, western blot was used to verify that CTPS1 promoted the expression of GTSE1 and CDK2 by inhibiting the expression of p53. In summary, we identified an important diagnostic biomarker for CRC, namely CTPS1, and its importance was validated at the cellular level. These results suggest that CTPS1 could serve as a candidate biomarker for CRC and CTPS1 inhibitors may be a potential treatment for CRC.
Insights
Researchers identified CTPS1 as a key biomarker for colorectal cancer (CRC). This protein promotes tumor growth and metastasis, suggesting CTPS1 as a potential therapeutic target for CRC.
Area of Science:
- Oncology
- Molecular Biology
- Bioinformatics
Background:
- Colorectal cancer (CRC) is a leading cause of cancer-related deaths globally.
- There is an urgent need for novel diagnostic biomarkers and therapeutic targets for CRC.
- Understanding CRC progression mechanisms is crucial for improving patient outcomes.
Purpose of the Study:
- To identify a novel molecular biomarker for colorectal cancer diagnosis.
- To investigate the role of CTPS1 in CRC progression.
- To elucidate the molecular pathways regulated by CTPS1 in CRC.
Main Methods:
- Utilized TCGA and GEO databases for bioinformatics analysis.
- Performed gene expression analysis using PCR.
- Verified protein expression and pathway interactions via Western blot.
Main Results:
- CTPS1 was identified as a potential diagnostic biomarker for CRC.
- CTPS1 promotes tumor proliferation and metastasis in CRC.
- CTPS1 regulates CRC progression via cell cycle and p53 pathways, affecting genes like GTSE1 and CDK2.
Conclusions:
- CTPS1 is a significant diagnostic biomarker for colorectal cancer.
- CTPS1's role in promoting CRC progression via the p53 pathway is validated.
- CTPS1 inhibitors represent a potential therapeutic strategy for CRC treatment.
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