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VEGF Gene Polymorphisms Affect Serum Protein Levels and Alter Disease Activity and Synovial Lesions in Rheumatoid Arthritis.

ABSTRACT: Our study investigated 2 common single-nucleotide polymorphisms (SNPs) of vascular endothelial growth factor (VEGF) for their influences on serum VEGF levels, disease activity, and synovial lesions in rheumatoid arthritis (RA).Clinical information and venous blood samples were collected from 98 RA patients and 100 healthy controls. Genotyping on samples from the subjects was performed using matrix-assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF MS). Serum VEGF levels were determined using the enzyme-linked immunosorbent assay (ELISA). The synovial thickness and joint effusion of 28 joints were measured in RA patients, and total sharp score (TSS) and disease activity score (DAS) of 28 joints were recorded.The genotype and allele frequencies of VEGF rs833070 (G>A) and rs3025030 (G>C) were significantly different between RA group and control group (all P<0.05). VEGF rs833070 and rs3025030 polymorphisms were associated with increasing VEGF serum levels in the RA group (all P<0.01). Statistically significant difference was observed in DAS28 between the different genotypes of VEGF rs833070 in RA patients (P<0.05). Importantly, significant differences in synovial thickening, joint effusion and synovial angiogenesis were observed between the different genotypes of VEGF rs833070 and rs3025030 polymorphisms (all P<0.05).Our study provides evidence that VEGF polymorphisms might be important indicators of disease activity and synovial lesions, and prognostic factors in evaluating the treatment effectiveness in RA.

SUBMITTER: Yi JP

PROVIDER: S-EPMC4750902 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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VEGF Gene Polymorphisms Affect Serum Protein Levels and Alter Disease Activity and Synovial Lesions in Rheumatoid Arthritis.

Yi Jin-Ping JP Wu Yu-Zhang YZ Yu Nan N Yu Zhi-Wu ZW Xie Fu-Yuan FY Yuan Quan Q

Medical science monitor : international medical journal of experimental and clinical research 20160130

<h4>Background</h4>Our study investigated 2 common single-nucleotide polymorphisms (SNPs) of vascular endothelial growth factor (VEGF) for their influences on serum VEGF levels, disease activity, and synovial lesions in rheumatoid arthritis (RA).<h4>Material/methods</h4>Clinical information and venous blood samples were collected from 98 RA patients and 100 healthy controls. Genotyping on samples from the subjects was performed using matrix-assisted laser desorption ionization time of flight mas ...[more]

PMID: 26825024

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Project description:Rheumatoid arthritis (RA) is one of the chronic autoimmune diseases, with genetic and environmental predisposition, and synovial angiogenesis is considered to be a notable stage in its pathogenesis. Angiogenesis or vascular proliferation has been suggested to be a pivotal mechanism involved in both inflammation/immune activation and joint invasion and destruction. RA may be considered an "angiogenic disease" because it is associated with active tissue neovascularization. Vascular endothelial growth factor (VEGF) promotes vascular permeability, regulates angiogenesis, endothelial cell proliferation and migration, chemotaxis, and capillary hyper permeability and therefore is involved in the development of inflammation. VEGF is the most potent proangiogenic molecule promoting the angiogenic phenotype of RA and is upregulated in RA.The aim of the study was to identify functional VEGF variants and their possible association with VEGF expression, susceptibility to and severity of RA.581 RA patients and of 341 healthy individuals were examined for -1154 A/G, -2578 A/C VEGF gene polymorphisms by PCR-RFLP method and for -634 G/C VEGF gene polymorphisms by TaqMan SNP genotyping assay. Serum VEGF levels in RA patients and controls were measured by ELISA.The -1154 A/G VEGF gene polymorphism under the codominant, recessive (AA+AG vs. GG) and dominant (AA vs. AG+GG) models were associated with RA (p = 0.0009; p = 0.004; p = 0.017, respectively). VEGF -2578 A/C revealed differences in the case-control distribution in codominant, recessive, dominant and overdominant models (all p<0.0001). Furthermore, the -634 G/C VEGF gene SNP was not correlated with susceptibility to RA in Polish population. The genotype-phenotype analysis showed significant association between the VEGF -1154 A/G and -634 G/C and mean value of the hemoglobin (all p = 0.05), additionally they relevated that the number of women with the polymorphic allele -2578 C was lower than the number of women with wild type allele -2578A (p = 0.006). Serum VEGF levels were significantly higher in RA patients than in control groups (both p = 0,0001).Present findings indicated that VEGF genetic polymorphism as well as VEGF protein levels may be associated with the susceptibility to RA in the Polish population.

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VEGF Gene Polymorphisms Affect Serum Protein Levels and Alter Disease Activity and Synovial Lesions in Rheumatoid Arthritis.

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VEGF Gene Polymorphisms Affect Serum Protein Levels and Alter Disease Activity and Synovial Lesions in Rheumatoid Arthritis.

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