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Matrix metalloproteinase-2 polymorphisms and breast cancer susceptibility
Alicia Beeghly-Fadiel1, Wei Lu, Ji-Rong Long
1Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, Tennessee 37203-1738, USA.
Genetic variations in the matrix metalloproteinase-2 (MMP-2) gene are linked to breast cancer risk. Specific MMP-2 promoter polymorphisms show a reduced risk, suggesting a role in breast cancer susceptibility.
Area of Science:
- Oncology
- Genetics
- Molecular Biology
Background:
- Matrix metalloproteinase-2 (MMP-2) is implicated in cancer metastasis, cell growth, and inflammation.
- Genetic factors are increasingly recognized for their role in cancer development and susceptibility.
Purpose of the Study:
- To investigate the association between genetic variations in the MMP-2 gene and breast cancer risk.
- To identify specific MMP-2 polymorphisms that may influence susceptibility to breast cancer.
Main Methods:
- A two-phase study design was employed, genotyping 39 polymorphisms in the MMP-2 gene.
- The study included 6,066 Chinese women from the Shanghai Breast Cancer Study (a population-based case-control study).
- Statistical analysis evaluated associations between genotypes, haplotypes, and breast cancer risk.
Main Results:
- Two MMP-2 promoter polymorphisms, rs11644561 and rs11643630, showed consistent associations with breast cancer risk across study phases.
- Minor allele homozygotes for rs11644561 and rs11643630 exhibited a decreased risk of breast cancer.
- A rare haplotype combining rs11644561 A and rs11643630 G was associated with a significantly reduced risk.
- Rare allele homozygotes for rs243865 showed a trend towards increased breast cancer risk.
Conclusions:
- Genetic variations within the MMP-2 gene play a role in breast cancer susceptibility.
- Specific MMP-2 polymorphisms may modify an individual's risk of developing breast cancer.
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