A single nucleotide polymorphism in catalase is strongly associated with ovarian cancer survival

Jimmy Belotte, Nicole M. Fletcher, Mohammed G. Saed, Mohammed S. Abusamaan, Gregory Dyson, Michael P. Diamond, Ghassan M. Saed

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Ovarian cancer is the deadliest of all gynecologic cancers. Recent evidence demonstrates an association between enzymatic activity altering single nucleotide polymorphisms (SNP) with human cancer susceptibility. We sought to evaluate the association of SNPs in key oxidant and antioxidant enzymes with increased risk and survival in epithelial ovarian cancer. Individuals (n = 143) recruited were divided into controls, (n = 94): healthy volunteers, (n = 18), high-risk BRCA1/2 negative (n = 53), high-risk BRCA1/2 positive (n = 23) and ovarian cancer cases (n = 49). DNA was subjected to TaqMan SNP genotype analysis for selected oxidant and antioxidant enzymes. Of the seven selected SNP studied, no association with ovarian cancer risk (Pearson Chi-square) was found. However, a catalase SNP was identified as a predictor of ovarian cancer survival by the Cox regression model. The presence of this SNP was associated with a higher likelihood of death (hazard ratio (HR) of 3.68 (95% confidence interval (CI): 1.149-11.836)) for ovarian cancer patients. Kaplan-Meier survival analysis demonstrated a significant median overall survival difference (108 versus 60 months, p<0.05) for those without the catalase SNP as compared to those with the SNP. Additionally, age at diagnosis greater than the median was found to be a significant predictor of death (HR of 2.78 (95% CI: 1.022-7.578)). This study indicates a strong association with the catalase SNP and survival of ovarian cancer patients, and thus may serve as a prognosticator.

Original languageEnglish (US)
Article numbere0135739
JournalPloS one
Volume10
Issue number8
DOIs
StatePublished - Aug 24 2015

Fingerprint

ovarian neoplasms
Polymorphism
Ovarian Neoplasms
Catalase
single nucleotide polymorphism
Single Nucleotide Polymorphism
catalase
Nucleotides
Survival
Oxidants
oxidants
confidence interval
Hazards
Antioxidants
death
antioxidants
Confidence Intervals
neoplasms
Enzymes
enzymes

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Belotte, J., Fletcher, N. M., Saed, M. G., Abusamaan, M. S., Dyson, G., Diamond, M. P., & Saed, G. M. (2015). A single nucleotide polymorphism in catalase is strongly associated with ovarian cancer survival. PloS one, 10(8), [e0135739]. https://doi.org/10.1371/journal.pone.0135739

A single nucleotide polymorphism in catalase is strongly associated with ovarian cancer survival. / Belotte, Jimmy; Fletcher, Nicole M.; Saed, Mohammed G.; Abusamaan, Mohammed S.; Dyson, Gregory; Diamond, Michael P.; Saed, Ghassan M.

In: PloS one, Vol. 10, No. 8, e0135739, 24.08.2015.

Research output: Contribution to journalArticle

Belotte, J, Fletcher, NM, Saed, MG, Abusamaan, MS, Dyson, G, Diamond, MP & Saed, GM 2015, 'A single nucleotide polymorphism in catalase is strongly associated with ovarian cancer survival', PloS one, vol. 10, no. 8, e0135739. https://doi.org/10.1371/journal.pone.0135739
Belotte, Jimmy ; Fletcher, Nicole M. ; Saed, Mohammed G. ; Abusamaan, Mohammed S. ; Dyson, Gregory ; Diamond, Michael P. ; Saed, Ghassan M. / A single nucleotide polymorphism in catalase is strongly associated with ovarian cancer survival. In: PloS one. 2015 ; Vol. 10, No. 8.
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