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Published on: May 14, 2016
α-hederin inhibits cervical cancer progression by inducing DNA damage-dependent cell cycle blockade and apoptosis
Yanlun Song1,2,3, Haimei Qin1,2,3, Shaofeng Huang3,4
1Reproductive Medicine Center, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, China.
Background:
Cervical cancer incidence has not decreased significantly despite widespread use of HPV vaccines and screening measures.
Purpose:
This study explored the potential of α-Hederin in the treatment of cervical cancer.
Methods:
CCK8, EdU staining assay, flow cytometry were conducted for apoptosis, cell cycle, ROS, and mitochondrial membrane potential. Mechanism effects of α-hederin on cervical cancer cells were investigated using transcriptome sequencing, bioinformatics analysis, and single-cell sequencing. Further in-depth detection of key proteins with western blot, immunofluorescence, overexpression of CHK1 gene, DNA damage inhibitors, and NAC inhibitors were performed to study the regulation of the cell cycle. In vivo nude mice tumorigenicity experiments and metabolomics analysis of the tumor tissue were also performed.
Results:
α-Hederin significantly inhibited SiHa and HeLa cell growth, promoted apoptosis, and inhibited migration and invasion of cervical cancer cells. Sequencing and bioinformatics analysis revealed that α-hederin mainly regulated cell cycle, DNA replication, P53, and other signaling pathways to inhibit the proliferation of cervical cancer cells and inhibited the G2M phase of the cell cycle, mainly by suppressing CDK1 and CyclinB expression. α-hederin may use ATM-CHK1-CDC25B/CDC25C and ATM-P53-P21 to regulate CDK1/Cycline B activity. Inhibition of this action significantly promoted G2M phase block. In vivo experiment indicated that the drug can effectively inhibit cervical cancer growth.
Conclusion:
α-hederin may be an effective drug to inhibit cervical cancer and has a good development prospect.
Insights
Alpha-hederin shows promise for treating cervical cancer by inhibiting cell growth and promoting apoptosis. This compound effectively targets cancer cell proliferation and progression in both lab studies and animal models.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Cervical cancer incidence remains high despite HPV vaccination and screening.
- There is a need for novel therapeutic strategies against cervical cancer.
Purpose of the Study:
- To investigate the anti-cancer potential of α-hederin in cervical cancer.
- To elucidate the molecular mechanisms underlying α-hederin's effects on cervical cancer cells.
Main Methods:
- Cell viability, apoptosis, cell cycle, ROS, and mitochondrial membrane potential assays.
- Transcriptome sequencing, bioinformatics, and single-cell sequencing for mechanism exploration.
- Western blot, immunofluorescence, gene overexpression, and in vivo tumorigenicity experiments in nude mice.
Main Results:
- α-hederin inhibited cervical cancer cell growth, migration, and invasion while promoting apoptosis.
- The compound regulated cell cycle and DNA replication pathways, specifically inhibiting the G2M phase by suppressing CDK1 and CyclinB expression.
- In vivo studies confirmed α-hederin's efficacy in inhibiting cervical cancer growth.
Conclusions:
- α-hederin demonstrates significant potential as an effective therapeutic agent for cervical cancer.
- Further development of α-hederin for cervical cancer treatment is warranted due to its promising prospects.
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