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Oleuropein induces apoptosis via the p53 pathway in breast cancer cells
Zeinab Korany Hassan1, Maha Hussein Elamin, Sawsan Ali Omer
1Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
Background:
Breast cancer is a major health problem worldwide. Olive oil induces apoptosis in some cancer cells due to phenolic compounds like oleuropein. Although oleuropein has anticancer activity, the underlying mechanisms of action remain unknown. The study aimed to assess the mechanism of oleuropin-induced breast cancer cell apoptosis.
Materials And Methods:
p53, Bcl-2 and Bax gene expression was evaluated by semi-quantitative reverse transcriptase polymerase chain reaction (RT-PCR) in luminal MCF-7 cells.
Results:
Oleuropein-induced apoptosis was accompanied by up-regulation of both p53 and Bax gene expression levels and down-regulation in Bcl2.
Conclusions:
Oleuropein induces apoptosis in breast tumour cells via a p53-dependent pathway mediated by Bax and Bcl2 genes. Therefore, oleuropein may have therapeutic potential in breast cancer patients by inducing apoptosis via activation of the p53 pathway.
Insights
Oleuropein, a compound in olive oil, triggers breast cancer cell death by activating the p53 pathway. This mechanism involves regulating Bax and Bcl2 genes, suggesting therapeutic potential for breast cancer treatment.
Area of Science:
- Oncology
- Molecular Biology
- Nutritional Science
Background:
- Breast cancer represents a significant global health challenge.
- Phenolic compounds in olive oil, such as oleuropein, exhibit apoptosis-inducing effects on cancer cells.
- The precise mechanisms by which oleuropein mediates anticancer activity are not fully understood.
Purpose of the Study:
- To elucidate the mechanism of oleuropein-induced apoptosis in breast cancer cells.
- To investigate the role of specific genes in oleuropein's apoptotic effects.
Main Methods:
- Utilized semi-quantitative reverse transcriptase polymerase chain reaction (RT-PCR).
- Evaluated the expression of p53, Bcl-2, and Bax genes.
- Conducted experiments on luminal MCF-7 breast cancer cells.
Main Results:
- Oleuropein treatment led to increased expression of p53 and Bax genes.
- A decrease in Bcl-2 gene expression was observed following oleuropein treatment.
- These changes were associated with the induction of apoptosis in breast cancer cells.
Conclusions:
- Oleuropein induces apoptosis in breast tumor cells through a p53-dependent pathway.
- The pathway involves the modulation of Bax and Bcl-2 gene expression.
- Oleuropein demonstrates potential as a therapeutic agent for breast cancer by activating the p53 pathway.
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