Role of HIF1A, VEGFA and VEGFR2 SNPs in the susceptibility and progression of COPD in a spanish population
Keywords: 
HIF1A
VEGFA
VEGFR2
Hypoxia
COPD
Issue Date: 
2016
ISSN: 
1932-6203
Note: 
This is an open access article distributed under the terms of the Creative Commons Attribution License
Citation: 
Casanova, C.; Cordoba-Lanus, E.; Aguirre-Jaime, A.; et al. "Role of HIF1A, VEGFA and VEGFR2 SNPs in the susceptibility and progression of COPD in a spanish population". Plos one. 11 (5), 2016, e0154998
Abstract
Hypoxia is involved in the development of chronic inflammatory processes. Under hypoxic conditions HIF1A, VEGF and VEGFR2 are expressed and mediate the course of the resultant disease. The aim of the present study was to define the associations between tSNPs in these genes and COPD susceptibility and progression in a Spanish cohort. The T alleles in rs3025020 and rs833070 SNPs (VEGFA gene) were less frequent in the group of COPD cases and were associated with a lower risk of developing the disease (OR = 0.60; 95% CI = 0. 39-0.93; p = 0.023 and OR = 0.60; 95% CI = 0.38-0.96; p = 0.034, respectively) under a dominant model of inheritance. The haplotype in which both SNPs presented the T allele confirmed the association found (OR = 0.02; 95% CI = 0.00 to 0.66; p = 0.03). Moreover, patients with COPD carrying the T allele in homozygosis in rs3025020 SNP showed higher lung function values and this association remained constant during 3 years of follow-up. In conclusion, T allele in rs833070 and rs3025020 may confer a protective effect to COPD susceptibility in a Spanish population and the association of the SNP rs3025020 with lung function may be suggesting a role for VEGF in the progression of the disease.

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