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The prohibitin 3' untranslated region polymorphism in patients with ovarian cancer
Christoph Grimm1, Stephan Polterauer, Robert Zeillinger
1Department of Obstetrics and Gynecology, Medical University of Vienna, Vienna, Austria. christoph.grimm@meduniwien.ac.at <christoph.grimm@meduniwien.ac.at>
Objective:
Prohibitin is an important antiproliferative protein inhibiting cell proliferation by blocking the G1/S transition of the cell cycle. Recent findings indicate that the presence of at least one mutant allele within a certain prohibitin gene polymorphism causes inactivation of bioactive RNA resulting in the loss of its pro-apoptotic function and a subsequent risk for malignant growth. Based on these findings we studied whether the presence of this prohibitin polymorphism increases the risk and worsens the prognosis of ovarian cancer in Caucasian women.
Study Design:
A polymorphism within the 3' untranslated region (UTR) of the prohibitin gene was evaluated by pyrosequencing in 136 Caucasian patients with epithelial ovarian cancer and 129 healthy Caucasian controls.
Results:
The wild-type C/C, heterozygous C/T, and the mutant T/T prohibitin genotype was found in 88 (64.7%), 46 (33.8%), and 2 (1.5%) patients with ovarian cancer and in 84 (65.1%), 39 (30.2%), and 6 (4.7%) healthy controls. Presence of at least one mutant allele of the prohibitin 3' UTR polymorphism was not associated with an increased risk of ovarian cancer as compared to healthy controls (P=0.9). No association was found between presence of the prohibitin 3' UTR polymorphism and the clinico-pathological parameters tumor stage, tumor grade, and patients' age at diagnosis. Presence of at least one mutant allele of the prohibitin 3' UTR polymorphism was not associated with disease-free and overall survival.
Conclusion:
The prohibitin 3' UTR polymorphism was not associated with risk and prognosis of ovarian cancer in Caucasian women.
Insights
This study found no link between a specific prohibitin gene polymorphism and ovarian cancer risk or prognosis in Caucasian women. The prohibitin 3' untranslated region (UTR) polymorphism did not affect cancer development or patient survival.
Area of Science:
- Genetics
- Oncology
- Molecular Biology
Background:
- Prohibitin is a key antiproliferative protein that regulates cell cycle progression.
- A specific prohibitin gene polymorphism in the 3' untranslated region (UTR) has been linked to potential loss of pro-apoptotic function and increased cancer risk.
- Ovarian cancer remains a significant health concern, necessitating research into genetic risk factors.
Purpose of the Study:
- To investigate the association between the prohibitin 3' UTR polymorphism and the risk of developing epithelial ovarian cancer in Caucasian women.
- To determine if this prohibitin polymorphism influences the prognosis of ovarian cancer, including survival rates and clinico-pathological parameters.
Main Methods:
- A case-control study was conducted involving 136 Caucasian epithelial ovarian cancer patients and 129 healthy Caucasian controls.
- Genotyping for the prohibitin 3' UTR polymorphism was performed using pyrosequencing.
- Statistical analysis was used to compare genotype frequencies between cases and controls and to assess associations with clinical parameters and survival.
Main Results:
- The frequency of the wild-type, heterozygous, and mutant prohibitin genotypes did not significantly differ between ovarian cancer patients and healthy controls.
- The presence of at least one mutant allele of the prohibitin 3' UTR polymorphism was not associated with an increased risk of ovarian cancer (P=0.9).
- No significant association was observed between the prohibitin 3' UTR polymorphism and tumor stage, tumor grade, patient age, disease-free survival, or overall survival.
Conclusions:
- The studied prohibitin 3' UTR polymorphism is not associated with an increased risk of ovarian cancer in Caucasian women.
- This specific prohibitin gene polymorphism does not appear to influence the prognosis or survival outcomes for ovarian cancer patients.
- Further research may be needed to explore other genetic factors in ovarian cancer etiology and progression.
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