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Coptisine regulates PI3K/AKT pathway to block bladder cancer progression: a study based on network pharmacology, in
Yu Xiaohui1, Li Jie1,2, Zhou Jiangqiao3,4
1Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan, China.
Background:
Coptisine (COP) is a natural compound extracted from Rhizoma Coptidis, and it represses the malignant biological behaviors of bladder cancer cells. However, the underlying molecular mechanism has not been fully elucidated. The aim of this study was to clarify the downstream mechanism by which COP treats bladder cancer.
Materials And Methods:
SwissTargetPrediction, STITCH, SymMap, ETCM, TCMSP, CTD databases were used to collect the related targets of COP. GeneCards, DisGeNET, TTD and OMIM databases were used to obtain the related targets of bladder cancer. A Venn diagram was used to identify the potential targets of COP in bladder cancer treatment. The protein-protein interaction network was constructed using STRING database, and Cytoscape 3.9.0 software was used to screen the hub targets. The binding relationship between COP and the hub targets was verified by molecular docking and molecular dynamics simulation. After the bladder cell lines T24 and BIU-87 were treated with different doses of COP, the regulatory effects of COP on PI3K/AKT pathway were investigated with western blotting. Additionally, the tumor-suppressive properties of COP on bladder cancer cells were validated with tumorigenesis model and metastasis model in nude mice.
Results:
RAC-alpha serine/threonine-protein kinase 1 (AKT1), glycogen synthase kinase 3 beta (GSK3B), caspase-3 (CASP3), tumor necrosis factor (TNF) and cyclin D1 (CCND1) were identified as the main hub targets of COP in bladder cancer treatment. PI3K/AKT pathway was predicted to be a crucial pathway regulated by COP. The binding affinities between COP and AKT1, GSK3B, CASP3, TNF and CCND1 were high. COP treatment markedly repressed the phosphorylation level of ERK1/2, AKT1, PI3K p85 and mTOR in T24 and BIU-87 cells, and repressed the tumorigenesis and lung/liver metastasis of T24 cells in vivo.
Conclusion:
COP may be a natural inhibitor for AKT1, GSK3B, CASP3, TNF and CCND1. COP represses PI3K/AKT pathway to suppress the progression of bladder cancer.
Insights
Coptisine (COP) inhibits bladder cancer progression by targeting key proteins like AKT1 and GSK3B, thereby repressing the PI3K/AKT pathway. This natural compound shows promise in suppressing tumor growth and metastasis.
Area of Science:
- Oncology
- Pharmacology
- Molecular Biology
Background:
- Coptisine (COP), a natural compound from Rhizoma Coptidis, exhibits inhibitory effects on bladder cancer.
- The precise molecular mechanisms underlying COP's anti-cancer activity require further elucidation.
Purpose of the Study:
- To investigate the downstream molecular mechanisms by which Coptisine (COP) exerts its therapeutic effects on bladder cancer.
Main Methods:
- Utilized multiple databases (SwissTargetPrediction, STITCH, etc.) to identify COP and bladder cancer targets.
- Constructed protein-protein interaction networks and performed molecular docking to identify hub targets.
- Investigated COP's effect on the PI3K/AKT pathway via western blotting and validated anti-tumor properties in vivo.
Main Results:
- Identified AKT1, GSK3B, CASP3, TNF, and CCND1 as key targets of COP in bladder cancer.
- Confirmed high binding affinities between COP and these hub targets.
- Demonstrated that COP inhibits the PI3K/AKT pathway, reducing tumor growth and metastasis in vivo.
Conclusions:
- Coptisine (COP) acts as a natural inhibitor of AKT1, GSK3B, CASP3, TNF, and CCND1.
- COP suppresses bladder cancer progression by inhibiting the PI3K/AKT signaling pathway.
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