Genetic Polymorphism of CAT C-262 T and Susceptibility to Breast Cancer, a Case–Control Study and Meta-Analysis of the Literatures
- 295 Downloads
Catalase (CAT) activity is likely to be affected by functional polymorphism of C-262 T (rs1001179) in the CAT gene (OMIM: 115500). It is hypothesized that individuals with the lower expressing forms of the CAT polymorphism may be more susceptible to breast cancer. Therefore, the present case–control study and meta-analysis were carried out. The present case–control study consisted of 407 females with breast cancer and a total of 395 healthy female from population matched with patients according to age. Genotypic analysis for the CAT C-262 T polymorphism was determined by PCR. We identified 7 eligible studies, including 10,471 subjects (4,959 patients, and 5,512 healthy controls) in relation to the CAT C-262 T polymorphism and breast cancer risk. Based on the present case–control study, the CT (OR = 0.90, 95 % CI: 0.66–1.22, P = 0.484) and TT (OR = 0.68, 95 % CI: 0.35–1.30, P = 0.245) genotypes were not associated with breast cancer risk compared to the CC genotype. For meta-analysis including all studies, there was significant heterogeneity between studies. The overall ORs of the breast cancer risk were not associated with the CT (Q-statistic = 14.90, df = 6, P < 0.05; OR = 1.01, 95 % CI: 0.92–1.09, P = 0.862) and TT (Q-statistic = 2.57, df = 6, P > 0.05; OR = 1.03, 95 % CI: 0.85–1.24, P = 0.770) genotypes. There was no association between C-262 T polymorphism of the CAT and risk of breast cancer.
KeywordsBreast cancer CAT Genetic polymorphism Meta-analysis
The authors are indebted to the participants for their close cooperation. The authors are indebted to Dr. Maryam Ansari-Lari for critical reading of the manuscript and for her contribution in discussion. This study was supported by Shiraz University.
Conflict of Interest
No competing interests are declared by any of the authors.
- 9.Ahn J, Gammon MD, Santella RM, Gaudet MM, Britton JA, Teitelbaum SL, Terry MB, Nowell S, Davis W, Garza C, Neugut AI, Ambrosone CB (2005) Associations between breast cancer risk and the catalase genotype, fruit and vegetable consumption, and supplement use. Am J Epidemiol 162:943–952CrossRefPubMedGoogle Scholar
- 11.Quick SK, Shields PG, Nie J, Platek ME, McCann SE, Hutson AD, Trevisan M, Vito D, Modali R, Lehman TA, Seddon M, Edge SB, Marian C, Muti P, Freudenheim JL (2008) Effect modification by catalase genotype suggests a role for oxidative stress in the association of hormone replacement therapy with postmenopausal breast cancer risk. Cancer Epidemiol Biomarkers Prev 17:1082–1087CrossRefPubMedGoogle Scholar
- 14.McCullough LE, Santella RM, Cleveland RJ, Bradshaw PT, Millikan RC, North KE, Olshan AF, Eng SM, Ambrosone CB, Ahn J, Steck SE, Teitelbaum SL, Neugut AI, Gammon MD (2012) Polymorphisms in oxidative stress genes, physical activity, and breast cancer risk. Cancer Causes Control 23:1949–1958CrossRefPubMedCentralPubMedGoogle Scholar