Published in:
01-06-2015 | Research Article
Association of VEGF and VEGFR1 polymorphisms with breast cancer risk in North Indians
Authors:
Ruhi Kapahi, Kamlesh Guleria, Vasudha Sambyal, Mridu Manjari, Meena Sudan, Manjit Singh Uppal, Neeti Rajan Singh
Published in:
Tumor Biology
|
Issue 6/2015
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Abstract
The aim of present study was to evaluate the relationship between vascular endothelial growth factor (VEGF) −2578C/A, −2549I/D, −460T/C and −7C/T and VEGFR1 −710C/T polymorphisms with risk to breast cancer in North Indians. A total of 204 sporadic breast cancer patients and 204 controls were recruited for this case-control study. Significantly increased frequency of II genotype of −2549I/D polymorphism was observed in patients as compared to control individuals (odds ratio (OR) = 2.76, 95 % confidence interval (CI), 1.55–4.92; p = 0.0005). VEGF −2578AA genotype (OR = 2.87; 95 % CI, 1.61–5.10; p = 0.0003) and A allele (OR = 1.65, 95 % CI, 1.25–2.18; p = 0.0004) were found to be associated with increased risk for breast cancer. Individuals carrying CC genotype (OR = 2.23, 95 % CI, 1.25–3.97) and C allele (OR = 1.42, 95 % CI, 1.07–1.87) of VEGF −460T/C polymorphism were at higher risk of breast cancer. There was no significant difference in genotype and allele distribution of VEGF −7C/T and VEGFR1 −710C/T polymorphisms between cases and control individuals (p > 0.05). Linkage disequilibrium analysis showed a strong linkage between VEGF −2549I/D and −2578C/A polymorphisms (Lewontin’s \( \overset{^{\prime }}{D} \) = 0.99; r
2 = 0.97), −2549I/D and −460T/C (\( \overset{^{\prime }}{D} \) = 0.94; r
2 = 0.84), and −2578C/A and −460T/C polymorphisms (\( \overset{^{\prime }}{D} \) = 0.93; r
2 = 0.83). In the present study, we concluded that VEGF −2549I/D, −2578C/A and −460T/C polymorphisms are associated with risk to breast cancer in Punjab, North India.