Association of a nonsynonymous single-nucleotide polymorphism of matrix metalloproteinase 9 with giant cell arteritis

A. Rodríguez-Pla, Terri L Beaty, P. J. Savino, R. C. Eagle, Philip Seo, Mark J Soloski

Research output: Contribution to journalArticle

Abstract

Objective. Giant cell arteritis (GCA) is the most common type of primary vasculitis. Matrix metalloproteinase 9 (MMP-9) is present in arterial lesions of GCA and may be involved in its pathogenesis. We investigated whether certain genotypes of 4 single-nucleotide polymorphisms (SNPs) of MMP-9 are overrepresented in patients with histologically confirmed GCA. Methods. Four SNPs of MMP-9, rs3918242 in the promoter region and 3 nonsynonymous coding SNPs (rs3918252, rs17576, and rs2250889) were genotyped by polymerase chain reaction-restriction fragment length polymorphism analysis in 58 white patients for whom there was a clinical suspicion of GCA. Thirty of these patients had histologically confirmed GCA (group 1), and 28 patients had negative results of a temporal artery biopsy for GCA (group 2). Estimates of the genotype distributions of each of these SNPs in a white population were determined using publicly available genotype data for a panel of 23 individuals (group 3). Results. Although 1 SNP was monomorphic in all 3 groups, we observed statistically significant differences in the genotype distributions for rs2250889 between group 1 and group 2 (P = 0.005) and between group 1 and group 3 (P = 0.009), but not between groups 2 and 3 (P = 0.965). Conclusion. These data derived from a sample of patients with GCA suggest that the G allele of MMP-9 polymorphism rs2250889 is overrepresented in patients with histologically confirmed GCA. Clearly, larger sample sizes will be necessary to confirm this suggestive association and better characterize a possible linkage disequilibrium structure among polymorphisms.

Original languageEnglish (US)
Pages (from-to)1849-1853
Number of pages5
JournalArthritis and Rheumatism
Volume58
Issue number6
DOIs
StatePublished - Jun 2008

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Giant Cell Arteritis
Matrix Metalloproteinase 9
Single Nucleotide Polymorphism
Genotype
Temporal Arteries
Linkage Disequilibrium
Vasculitis
Genetic Promoter Regions
Restriction Fragment Length Polymorphisms
Sample Size
Alleles
Biopsy
Polymerase Chain Reaction

ASJC Scopus subject areas

  • Immunology
  • Rheumatology

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Association of a nonsynonymous single-nucleotide polymorphism of matrix metalloproteinase 9 with giant cell arteritis. / Rodríguez-Pla, A.; Beaty, Terri L; Savino, P. J.; Eagle, R. C.; Seo, Philip; Soloski, Mark J.

In: Arthritis and Rheumatism, Vol. 58, No. 6, 06.2008, p. 1849-1853.

Research output: Contribution to journalArticle

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abstract = "Objective. Giant cell arteritis (GCA) is the most common type of primary vasculitis. Matrix metalloproteinase 9 (MMP-9) is present in arterial lesions of GCA and may be involved in its pathogenesis. We investigated whether certain genotypes of 4 single-nucleotide polymorphisms (SNPs) of MMP-9 are overrepresented in patients with histologically confirmed GCA. Methods. Four SNPs of MMP-9, rs3918242 in the promoter region and 3 nonsynonymous coding SNPs (rs3918252, rs17576, and rs2250889) were genotyped by polymerase chain reaction-restriction fragment length polymorphism analysis in 58 white patients for whom there was a clinical suspicion of GCA. Thirty of these patients had histologically confirmed GCA (group 1), and 28 patients had negative results of a temporal artery biopsy for GCA (group 2). Estimates of the genotype distributions of each of these SNPs in a white population were determined using publicly available genotype data for a panel of 23 individuals (group 3). Results. Although 1 SNP was monomorphic in all 3 groups, we observed statistically significant differences in the genotype distributions for rs2250889 between group 1 and group 2 (P = 0.005) and between group 1 and group 3 (P = 0.009), but not between groups 2 and 3 (P = 0.965). Conclusion. These data derived from a sample of patients with GCA suggest that the G allele of MMP-9 polymorphism rs2250889 is overrepresented in patients with histologically confirmed GCA. Clearly, larger sample sizes will be necessary to confirm this suggestive association and better characterize a possible linkage disequilibrium structure among polymorphisms.",
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AU - Seo, Philip

AU - Soloski, Mark J

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N2 - Objective. Giant cell arteritis (GCA) is the most common type of primary vasculitis. Matrix metalloproteinase 9 (MMP-9) is present in arterial lesions of GCA and may be involved in its pathogenesis. We investigated whether certain genotypes of 4 single-nucleotide polymorphisms (SNPs) of MMP-9 are overrepresented in patients with histologically confirmed GCA. Methods. Four SNPs of MMP-9, rs3918242 in the promoter region and 3 nonsynonymous coding SNPs (rs3918252, rs17576, and rs2250889) were genotyped by polymerase chain reaction-restriction fragment length polymorphism analysis in 58 white patients for whom there was a clinical suspicion of GCA. Thirty of these patients had histologically confirmed GCA (group 1), and 28 patients had negative results of a temporal artery biopsy for GCA (group 2). Estimates of the genotype distributions of each of these SNPs in a white population were determined using publicly available genotype data for a panel of 23 individuals (group 3). Results. Although 1 SNP was monomorphic in all 3 groups, we observed statistically significant differences in the genotype distributions for rs2250889 between group 1 and group 2 (P = 0.005) and between group 1 and group 3 (P = 0.009), but not between groups 2 and 3 (P = 0.965). Conclusion. These data derived from a sample of patients with GCA suggest that the G allele of MMP-9 polymorphism rs2250889 is overrepresented in patients with histologically confirmed GCA. Clearly, larger sample sizes will be necessary to confirm this suggestive association and better characterize a possible linkage disequilibrium structure among polymorphisms.

AB - Objective. Giant cell arteritis (GCA) is the most common type of primary vasculitis. Matrix metalloproteinase 9 (MMP-9) is present in arterial lesions of GCA and may be involved in its pathogenesis. We investigated whether certain genotypes of 4 single-nucleotide polymorphisms (SNPs) of MMP-9 are overrepresented in patients with histologically confirmed GCA. Methods. Four SNPs of MMP-9, rs3918242 in the promoter region and 3 nonsynonymous coding SNPs (rs3918252, rs17576, and rs2250889) were genotyped by polymerase chain reaction-restriction fragment length polymorphism analysis in 58 white patients for whom there was a clinical suspicion of GCA. Thirty of these patients had histologically confirmed GCA (group 1), and 28 patients had negative results of a temporal artery biopsy for GCA (group 2). Estimates of the genotype distributions of each of these SNPs in a white population were determined using publicly available genotype data for a panel of 23 individuals (group 3). Results. Although 1 SNP was monomorphic in all 3 groups, we observed statistically significant differences in the genotype distributions for rs2250889 between group 1 and group 2 (P = 0.005) and between group 1 and group 3 (P = 0.009), but not between groups 2 and 3 (P = 0.965). Conclusion. These data derived from a sample of patients with GCA suggest that the G allele of MMP-9 polymorphism rs2250889 is overrepresented in patients with histologically confirmed GCA. Clearly, larger sample sizes will be necessary to confirm this suggestive association and better characterize a possible linkage disequilibrium structure among polymorphisms.

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