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Spheroid Assay to Measure TGF-β-induced Invasion
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Connective tissue growth factor inhibits metastasis and acts as an independent prognostic marker in colorectal cancer
Been-Ren Lin1, Cheng-Chi Chang, Ting-Fang Che
1Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan.
Gastroenterology
|January 6, 2005
Summary
Connective tissue growth factor (CTGF) is crucial in colorectal cancer (CRC) progression. High CTGF levels correlate with better survival in stage II/III CRC, while low levels promote invasion and metastasis.
Area of Science:
- Oncology
- Molecular Biology
Background:
- Connective tissue growth factor (CTGF) is implicated in tumor development and progression.
- Investigating CTGF's role in colorectal cancer (CRC) progression is essential.
Purpose of the Study:
- To elucidate the role of CTGF in colorectal cancer (CRC) progression.
- To assess CTGF as a prognostic factor in CRC patients.
Main Methods:
- Immunohistochemical staining of 119 CRC specimens.
- CTGF expression vector transfection in CRC cell lines.
- Invasion, metastasis assays in mice, and beta-catenin/T-cell factor signaling pathway analysis.
Main Results:
- High CTGF expression in stage II/III CRC correlates with improved survival and disease-free outcomes.
- Modulating CTGF levels inversely affects CRC cell invasiveness.
- Reduced CTGF enhances liver metastasis, linked to beta-catenin/T-cell factor pathway and MMP7.
Conclusions:
- CTGF is a key regulator of CRC invasion and metastasis.
- CTGF serves as a valuable prognostic marker for stage II and III CRC patients.
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