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Updated: Feb 24, 2026
Studying Pancreatic Cancer Stem Cell Characteristics for Developing New Treatment Strategies
Published on: June 20, 2015
The inhibitory effect of 5,7-DMF on pancreatic sphere-forming cell function mediated by FoxM1 gene expression
Deyu Zeng1, Jian Ma2, Rongrong Li1
1Department of Digestive Oncology, Affiliated Tumor Hospital of Central South University, Changsha, Hunan Province, P. R. China.
Abstract:
Pancreatic cancer is one of the major human malignant tumors severely endangering human health and life with high mortality due to the concealment of early symptoms and lack of effective therapies during advanced stages. The identification of pancreatic cancer stem cell functions has been as important strategy for understanding of pancreatic cancer biology and novel drug and therapy development. In the present study, we successfully isolated the pancreatic sphere-forming cells from pancreatic cancer cell line PANC-1 by sphere-forming method and we found that the sphere-forming ability and the cell migration rate of pancreatic sphere-forming cells were significantly inhibited by 5,7-DMF treatment, which was supported by the corresponding changes of several EMT biomarkers after being treated with 5,7-DMF. Moreover, we revealed here that the inhibition of pancreatic sphere-forming cells was mediated by the expression of FoxM1 gene, and also the expression of SOX2 gene was regulated by FoxM1 in pancreatic sphere-forming cells and involved in the inhibitory role of 5,7-DMF. These results provided important basis for the application of 5,7-DMF as a novel drug candidate for the pancreatic cancer treatment.
Insights
This study found that 5,7-DMF inhibits pancreatic cancer stem cell growth and migration. This inhibition is linked to the regulation of FoxM1 and SOX2 genes, suggesting 5,7-DMF as a potential pancreatic cancer treatment.
Area of Science:
- Oncology
- Cancer Biology
- Stem Cell Research
Background:
- Pancreatic cancer has high mortality due to late diagnosis and limited effective treatments.
- Pancreatic cancer stem cells are crucial for understanding tumor biology and developing new therapies.
- Targeting cancer stem cells offers a promising strategy for pancreatic cancer treatment.
Purpose of the Study:
- To investigate the effect of 5,7-DMF on pancreatic cancer stem cells.
- To elucidate the molecular mechanisms underlying 5,7-DMF's action, focusing on gene expression.
- To evaluate the potential of 5,7-DMF as a therapeutic agent for pancreatic cancer.
Main Methods:
- Isolation of pancreatic sphere-forming cells from the PANC-1 cell line using the sphere-forming method.
- Treatment of pancreatic sphere-forming cells with 5,7-DMF.
- Assessment of sphere-forming ability, cell migration rate, and epithelial-mesenchymal transition (EMT) biomarkers.
- Analysis of FoxM1 and SOX2 gene expression levels.
Main Results:
- 5,7-DMF significantly inhibited sphere-forming ability and cell migration in pancreatic cancer stem cells.
- 5,7-DMF treatment led to changes in EMT biomarkers, indicating suppression of the EMT process.
- Inhibition of pancreatic sphere-forming cells by 5,7-DMF was mediated by the regulation of FoxM1 gene expression.
- SOX2 gene expression was found to be regulated by FoxM1 and involved in the inhibitory effects of 5,7-DMF.
Conclusions:
- 5,7-DMF effectively inhibits pancreatic cancer stem cell functions, including proliferation and migration.
- The mechanism involves the modulation of FoxM1 and SOX2 gene expression, impacting EMT.
- These findings support the potential of 5,7-DMF as a novel therapeutic candidate for pancreatic cancer treatment.
