Telomerase Activity and p53 in Ovarian Cancer Cells
Author Information
Author(s): Akeshima R, Kigawa J, Takahashi M, Oishi T, Kanamori Y, Itamochi H, Shimada M, Kamazawa S, Sato S, Terakawa N
Primary Institution: Department of Obstetrics and Gynecology, Tottori University School of Medicine
Hypothesis
The study aims to determine the relationship between p53-dependent apoptosis and telomerase activity in ovarian cancer cells.
Conclusion
The p53 gene may relate to telomerase activity, but p53-dependent apoptosis does not affect the activity.
Supporting Evidence
- The IC50 to cisplatin for SK-OV-3 cells was 12.9 μM, while for p53 gene-transducted cells it was 9.2 μM.
- The apoptotic index was significantly higher in cells with p53 gene transduction compared to those without.
- Transduction of the p53 gene significantly enhanced CDDP-induced apoptosis.
- Bax protein levels did not differ before and after exposure to CDDP in SK-OV-3 cells.
- In cells with p53 gene transduction, p53 and Bax protein expression increased after CDDP exposure.
- Bcl-xL expression decreased after CDDP exposure in both cell lines.
- Telomerase activity was significantly lower in SK-OV-3 cells with the p53 gene compared to those without.
Takeaway
This study looked at how a gene called p53 affects cancer cells and their ability to die when treated with a drug. It found that while p53 is important, it doesn't change how active another part of the cell, called telomerase, is.
Methodology
The study used a human ovarian adenocarcinoma cell line, SK-OV-3, and transduced it with a wild-type p53 gene to assess changes in apoptosis and telomerase activity.
Digital Object Identifier (DOI)
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