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Matrix metalloproteinase-1 polymorphism of promoter region in sarcoidosis and tuberculosis patients.

Author information

1
Department of Internal Medicine and Molecular Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan.

Abstract

BACKGROUND AND AIM OF THE WORK:

Matrix metalloproteinases (MMPs) are associated with several diseases. MMP-1 is one of the interstitial collagenases and the most highly expressed. Recent studies have found that a single nucleotide polymorphism located in the promoter region of the MMP-1 gene affects transcriptional activity. This polymorphism, 1G/2G, has been reported to associate with several malignant tumors and lung diseases. In this study, we investigated whether this polymorphism is associated with sarcoidosis or tuberculosis.

METHODS:

Polymerase chain reaction-restriction fragment length polymorphism was used to determine the MMP-1 genotypes of 103 sarcoidosis patients, 105 tuberculosis patients and 106 healthy control subjects.

RESULTS:

We found no differences in genotype distributions and allele frequency between sarcoidosis or tuberculosis patients and healthy control subjects. In sarcoidosis patients with ocular involvement, a significant increase in 1G/1G or 1G/2G genotype was observed compared with patients without (p = 0.009, odds ratio (OR) = 3.22, 95% confidence interval (CI): 1.34-7.71). In sarcoidosis patients with three or more organs involved, 1G/1G type tended to increase compared with patients without (p = 0.035, OR = 5.17, 95% CI: 1.12-23.9). In tuberculosis patients with cavity formation, an increasing trend of 1G/1G type was observed compared with patients without (p = 0.064, OR = 7.69, 95% CI: 0.89-66.3).

CONCLUSIONS:

Although MMP-1 polymorphism was not associated with onset risk of sarcoidosis and tuberculosis, the clinical characteristics of both diseases were affected by this polymorphism.

PMID:
15127970
DOI:
10.1007/s11083-004-3344-x
[Indexed for MEDLINE]

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