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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ben Néjima, Dalel Ben Zarkouna, Yosr Gammoudi, Amor Manai, Mohamed Boussen, Hamouda |
| Description | Author Affiliation: Ben Néjima D ( Unité de Biochimie et de Biologie Moléculaire 02/UR/09-04, Faculté des Sciences de Tunis, Tunis, Tunisia, dalelbennejima@yahoo.com.) |
| Abstract | Matrix metalloproteinases (MMPs) are proteolytic enzymes that play important roles in tumor invasion and metastasis by degrading extracellular matrix components. Genetic variations in promoter regions of MMP genes, affecting their expression, have been associated with susceptibility to cancers. The aim of this study was to investigate the susceptibility and prognostic implications of the matrix metalloproteinase-2 (MMP-2) and tissue inhibitor of metalloproteinase-2 (TIMP-2) polymorphism in Tunisian breast cancer patients. MMP-2 genotypes were determined by real-time polymerase chain reaction (RT-PCR), and TIMP-2 genotypes were identified using a PCR-restriction fragment length polymorphism (RFLP) method in 210 breast cancer patients and 250 frequency-matched control women. Association of the clinicopathological parameters and the genetic markers with risk of breast cancer was assessed using univariate analyses. We found that the variant MMP-2 genotype (-1306CT or TT) was associated with substantially reduced risk of breast cancer [odds ratio (OR), 0.49; 95 % confidence interval (95 % CI), 0.033-0.73], compared with the CC genotype. For TIMP-2, a moderately reduced risk of the cancer (OR, 0.57; 95 % CI, 0.37-0.87) was also associated with the variant allele (-418GC or CC), compared with the GG common allele. Furthermore, polymorphisms in both genes seem to have additive effects and the highest risk for breast cancer has been observed in those with MMP-2 CC genotype and TIMP-2 GC or CC genotype (p = 0.006). A significant association was also found between the CC genotype and the aggressive forms of breast cancer as defined by advanced stages at the time of diagnosis and metastasis. This is the first report on the association of MMP-2 and TIMP-2 gene polymorphisms in breast cancer in Tunisian population. Our results suggest that the presence of the variant allele in the promoter of MMP-2 or TIMP-2 may be a protective factor for the development of breast cancer. |
| File Format | HTM / HTML |
| ISSN | 10104283 |
| Issue Number | 5 |
| Volume Number | 36 |
| e-ISSN | 14230380 |
| Journal | Tumor Biology |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2015-05-01 |
| Publisher Place | Netherlands |
| Access Restriction | Subscribed |
| Subject Keyword | Discipline Medicine__semicolon__oncology Breast Neoplasms Genetics Genetic Association Studies Matrix Metalloproteinase 2 Tissue Inhibitor Of Metalloproteinase-2 Adult Aged Pathology Case-control Studies Female Genotype Humans Middle Aged Neoplasm Invasiveness Neoplasm Staging Polymorphism, Single Nucleotide Prognosis Promoter Regions, Genetic Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Cancer Research |
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