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Updated: Mar 1, 2026

Integration of Bioinformatics Approaches and Experimental Validations to Understand the Role of Notch Signaling in Ovarian Cancer
Published on: January 12, 2020
Oridonin inhibits breast cancer growth and metastasis through blocking the Notch signaling
Shixin Xia1, Xiulan Zhang2, Caihong Li3
1Pharmaceutical Preparation Section, Weifang People's Hospital, Weifang 261500, China.
Background:
Oridonin is a diterpenoid isolated from Rabdosia rubescens with potent anticancer activity. The aim of our study is to investigate the role of oridonin to inhibit growth and metastasis of human breast cancer cells.
Methods:
The effect of oridonin on proliferation was evaluated by MTT assay, cell migration and invasion were evaluated by transwell migration and invasion assays in human breast cancer cells. The inhibitive effect of oridonin in vivo was determined by using xenografted nude mice. In addition, the expression of Notch receptors (Notch 1-4) was detected by western blot.
Results:
Oridonin inhibited human breast cancer cells in vitro and in vivo. In addition, oridonin significantly induced human breast cancer cells apoptosis. Furthermore, the oridonin treatment not only inhibited cancer cell migration and invasion, but more significantly, decreased the expression of Notch 1-4 protein.
Conclusion:
Our results suggest that the inhibitive effect of oridonin is likely to be driven by the inhibition of Notch signaling pathway and the resulting increased apoptosis.
Insights
Oridonin, a compound from Rabdosia rubescens, inhibits breast cancer growth and metastasis by reducing Notch signaling and increasing apoptosis. This natural product shows promise for breast cancer treatment.
Area of Science:
- Pharmacology
- Oncology
- Molecular Biology
Background:
- Oridonin, a diterpenoid from Rabdosia rubescens, exhibits significant anticancer properties.
- Breast cancer remains a leading cause of cancer-related mortality worldwide.
- Investigating novel therapeutic agents for breast cancer is crucial.
Purpose of the Study:
- To investigate the inhibitory effects of oridonin on human breast cancer cell growth and metastasis.
- To elucidate the underlying molecular mechanisms of oridonin's action.
- To evaluate oridonin's efficacy in preclinical models.
Main Methods:
- In vitro studies using MTT assays, transwell migration, and invasion assays.
- In vivo efficacy assessment in xenografted nude mouse models.
- Western blot analysis to detect Notch receptor (Notch 1-4) expression.
Main Results:
- Oridonin demonstrated significant inhibition of human breast cancer cell proliferation, migration, and invasion both in vitro and in vivo.
- Oridonin treatment led to increased apoptosis in breast cancer cells.
- A notable decrease in the expression of Notch 1-4 proteins was observed following oridonin treatment.
Conclusions:
- Oridonin exhibits potent anti-breast cancer activity.
- The anticancer effects of oridonin are associated with the inhibition of the Notch signaling pathway.
- Oridonin-induced apoptosis contributes to its therapeutic potential in breast cancer.
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