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Updated: Apr 24, 2026
Intranasal Delivery of Therapeutic Stem Cells to Glioblastoma in a Mouse Model
Published on: June 4, 2017
Apoptosis in glioma-bearing rats after neural stem cell transplantation
Hua Li1, Zhenjun Chen1, Shaopeng Zhou2
1Department of Neurology, the 476 Hospital of Chinese PLA, Fuzhou 350002, Fujian Province, China.
Abstract:
Abnormal activation of the Ras/Raf/Mek/Erk signaling cascade plays an important role in glioma. Inhibition of this aberrant activity could effectively hinder glioma cell proliferation and promote cell apoptosis. To investigate the mechanism of glioblastoma treatment by neural stem cell transplantation with respect to the Ras/Raf/Mek/Erk pathway, C6 glioma cells were prepared in suspension and then infused into the rat brain to establish a glioblastoma model. Neural stem cells isolated from fetal rats were then injected into the brain of this glioblastoma model. Results showed that Raf-1, Erk and Bcl-2 protein expression significantly increased, while Caspase-3 protein expression decreased. After transplantation of neural stem cells, Raf-1, Erk and Bcl-2 protein expression significantly decreased, while Caspase-3 protein expression significantly increased. Our findings indicate that transplantation of neural stem cells may promote apoptosis of glioma cells by inhibiting Ras/Raf/Mek/Erk signaling, and thus may represent a novel treatment approach for glioblastoma.
Insights
Neural stem cell transplantation may treat glioblastoma by inhibiting the Ras/Raf/Mek/Erk pathway. This approach promotes glioma cell apoptosis, offering a novel therapeutic strategy.
Area of Science:
- Neuroscience
- Oncology
- Molecular Biology
Background:
- Aberrant activation of the Ras/Raf/Mek/Erk signaling pathway is implicated in glioma development.
- Inhibiting this pathway can impede glioma cell proliferation and induce apoptosis.
Purpose of the Study:
- To investigate the mechanism of glioblastoma treatment via neural stem cell transplantation.
- To elucidate the role of the Ras/Raf/Mek/Erk pathway in this therapeutic process.
Main Methods:
- Established a rat glioblastoma model using C6 glioma cells.
- Transplanted neural stem cells into the glioblastoma model.
- Analyzed protein expression levels of Raf-1, Erk, Bcl-2, and Caspase-3.
Main Results:
- Initial glioblastoma model showed increased Raf-1, Erk, and Bcl-2, with decreased Caspase-3 expression.
- Neural stem cell transplantation led to decreased Raf-1, Erk, and Bcl-2, and increased Caspase-3 expression.
Conclusions:
- Neural stem cell transplantation may treat glioblastoma by suppressing the Ras/Raf/Mek/Erk signaling pathway.
- This inhibition promotes glioma cell apoptosis, suggesting a novel therapeutic avenue for glioblastoma.
