Effect of matrix metalloproteinase-9 -1562C/T gene polymorphism on manifestations of pulmonary tuberculosis.
Increased levels of matrix metalloproteinase-9 (MMP-9) in patients with tuberculous meningitis, tuberculous pleuritis, and advanced pulmonary tuberculosis (TB) suggest a pivotal role for MMP-9 in the development of pulmonary TB and its clinical manifestations. The present study was performed to evaluate the role of the -1562C/T single nucleotide polymorphism (SNP) in the promoter region of the human MMP-9 gene in development of pulmonary TB and its radiographic characteristics. A case-control study was performed with a study population of 205 patients with pulmonary TB and 223 healthy controls. Differences were explored in the allele and genotype distributions of the -1562C/T polymorphism between patients with pulmonary TB and healthy controls, between patients with single- and multi-lobe involvement, and between patients with and without cavities. The -1562C/C genotype was more common in patients with multi-lobe involvement than in those with single-lobe involvement (81.8 vs. 67.6%, P=0.03). However, there were no significant differences in the distribution between patients with pulmonary TB and healthy controls (P=0.40) or between patients with and without cavities (P=0.18). These results suggest that the -1562C/C genotype is associated with the intrapulmonary spread of TB rather than its development.
Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea.
Seung Heon
SH
Lee
Sung Koo
SK
Han
Young-Soo
YS
Shim
Jae-Joon
JJ
Yim
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D005260:Female; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D016015:Logistic Models; D008168:Lung / Q000000981:diagnostic imaging*; D008297:Male; D020780:Matrix Metalloproteinase 9 / Q000235:genetics*; D008875:Middle Aged; D016017:Odds Ratio; D020641:Polymorphism, Single Nucleotide; D011859:Radiography; D014397:Tuberculosis, Pulmonary / Q000000981:diagnostic imaging* / Q000201:enzymology* / Q000235:genetics; D055815:Young Adult
D020780:Matrix Metalloproteinase 9