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Updated: Aug 31, 2025
A 3D Spheroid Model for Glioblastoma
Published on: April 9, 2020
Effects of STAT3 Inhibitor BP-1-102 on The Proliferation, Invasiveness, Apoptosis and Neurosphere Formation of Glioma
Cheng-Chen Zhang1, Ting Wu1, Li Guan1
1Department of cell biology and Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu, China.
Abstract:
Malignant glioma, especially glioblastoma (GBM), has historically been associated with a low survival rate. The hyperactivation of STAT3 played a key role in GBM initiation and resistance to therapy; thus, there is an urgent requirement for novel STAT3 inhibitors. BP-1-102 was recently reported as a biochemical inhibitor of STAT3, but its roles and mechanism in biological behavior of glioma cells were still unclear. In this study, the effects of BP-1-102 on proliferation, apoptosis, invasion and neurosphere formation of glioma cell were investigated. Our results indicated that BP-1-102 inhibited the proliferation of U251 and A172 cells, and their IC50 values were 10.51 and 8.534 μM, respectively. Furthermore, BP-1-102 inhibited the invasion and migration abilities of U251 and A172 cells by decreasing the expression of matrix metallopeptidase 9, and induced glioma cell apoptosis by decreasing the expression of B-cell lymphoma-2. BP-1-102 also inhibited the formation of neurosphere. Mechanically, BP-1-102 reduced the phosphorylation of STAT3 and the p-STAT3's nuclear translocation in glioma cells. Thus, this study herein provided a potential drug for glioma therapy.
Insights
A novel STAT3 inhibitor, BP-1-102, effectively suppresses malignant glioma cell proliferation, invasion, and neurosphere formation. This compound shows promise as a potential therapeutic agent for glioma, a cancer with historically poor survival rates.
Area of Science:
- Oncology
- Molecular Biology
- Neuroscience
Background:
- Malignant glioma, particularly glioblastoma (GBM), has a poor prognosis.
- STAT3 hyperactivation is crucial in GBM development and treatment resistance.
- Novel STAT3 inhibitors are needed for effective glioma therapy.
Purpose of the Study:
- To investigate the effects and mechanisms of the STAT3 inhibitor BP-1-102 on glioma cells.
- To evaluate BP-1-102's impact on glioma cell proliferation, apoptosis, invasion, and neurosphere formation.
Main Methods:
- Assessed BP-1-102's effects on U251 and A172 glioma cell lines.
- Measured IC50 values for proliferation inhibition.
- Quantified invasion and migration using matrix metallopeptidase 9 (MMP-9) expression.
- Analyzed apoptosis induction via B-cell lymphoma-2 (Bcl-2) expression.
- Investigated neurosphere formation.
- Examined STAT3 phosphorylation and nuclear translocation.
Main Results:
- BP-1-102 significantly inhibited glioma cell proliferation with low IC50 values.
- BP-1-102 reduced invasion and migration by downregulating MMP-9.
- BP-1-102 induced apoptosis by decreasing Bcl-2 expression.
- BP-1-102 suppressed neurosphere formation.
- BP-1-102 decreased STAT3 phosphorylation and its nuclear translocation.
Conclusions:
- BP-1-102 demonstrates potent anti-glioma activity by targeting STAT3 signaling.
- BP-1-102 inhibits key processes like proliferation, invasion, and survival in glioma cells.
- BP-1-102 represents a promising therapeutic candidate for malignant glioma treatment.
