ArticleMolecular diagnosis & therapy2015
Matrix Metalloproteinase-9 (279R/Q) Polymorphism is Associated with Clinical Severity and Airflow Limitation in Tunisian Patients with Chronic Obstructive Pulmonary Disease.
Article in Molecular diagnosis & therapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 13 citations in OpenAlex.
- Article
- Impact of genetic variants in the MMP and ADAM genes towards chronic obstructive pulmonary disease susceptibility and lung function in the North Indian population.Molecular biology reports · 2025Article
- Association of theArchives of medical science : AMS · 2024Review
- Genetic polymorphism of matrix metalloproteinase 9 and susceptibility to chronic obstructive pulmonary disease: A meta-analysis.Journal of medical biochemistry · 2022Article
- Impact of Matrix Metalloproteinase 9 on COPD Development in Polish Patients: Genetic Polymorphism, Protein Level, and Their Relationship with Lung Function.BioMed research international · 2018Article
- Concomitant elevations of MMP-9, NGAL, proMMP-9/NGAL and neutrophil elastase in serum of smokers with chronic obstructive pulmonary disease.Journal of cellular and molecular medicine · 2017Article
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Authors and funding
10 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe aim of this study was to investigate the role of matrix metalloproteinase-9 (MMP-9) C-1562T and 279R/Q (836G>A) polymorphisms in the development of chronic obstructive pulmonary disease (COPD) in Tunisians and to determine their impact on disease progression and airflow obstruction.
methodsPulmonary functional tests were evaluated by body plethysmography. MMP-9 genotypes were determined in patients with COPD (n = 138) and healthy controls (n = 216) by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Serum MMP-9 and interleukin-6 (IL-6) levels were determined by enzyme-linked immunosorbent assays (ELISA) and activity of MMP-9 was evaluated by gelatin zymography.
resultsNo significant association was found between genetic variations in MMP-9 C-1562T and 279R/Q polymorphisms and the risk of development of COPD. However, a significant correlation was retrieved between the 279 R/Q polymorphism and disease severity (P = 0.02). In addition, homozygous Q (A) genotype was associated with a poorer lung function with a fall in forced expiratory volume in 1 s (FEV1) (%) and forced vital capacity (FVC%) among COPD patients compared with both AG and GG individuals (52.06 ± 19.6 vs. 59.08 ± 17.19, P = 0.03 and 72.41 ± 21.42 vs. 82.98 ± 16.48, P = 0.002, respectively). Using ELISA, a higher level of MMP-9 was found in patients with the CT genotype (P = 0.03), while no significant impact of the 279R/Q polymorphism was observed (P = 0.48). In contrast, by using zymography gel analysis, MMP-9 activity was enhanced in individuals carrying the R(G) allele in comparison with those homozygous for the Q(A) variant (P = 0.02).
conclusionOur results support a role for the 279R/Q polymorphism in physiological alterations that may affect progression and severity of COPD. These findings could be related to the decreased activity of MMP-9 among COPD patients carrying the 279Q variant.
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