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Background

Matrix metalloproteases (MMPs) are proteolytic enzymes that contribute to all stages of tumour progression, including the later stages of invasion and metastasis. Genetic variants in the MMP genes may influence the biological function of these enzymes and change their role in carcinogenesis and progression. We have investigated the association between the -735 C/T, the -1171 5A/6A, and the -1562 C/T polymorphisms in the MMP2, MMP3 and MMP9 genes, respectively, and the risk and survival of lung cancer.

Methods

The case-control study includes 879 lung cancer patients and 803 controls from a Caucasian population in Spain (CAPUA study). Genotypes were determined by PCR-RFLP. Odds ratios (OR) and 95% confidence intervals (CI) were calculated using unconditional logistic regression. The Kaplan-Meier method, long-rank test and Cox's were used for the survival analysis.

Results

The MMP9 -1562 T/T genotype was associated with a statistically significant decreased risk of developing lung cancer (OR = 0.23; 95% CI: 0.06-0.85), whereas no association was found for the MMP2 -735 C/T and MMP3 -1171 5A/6A polymorphisms. The MMP2 -735 T/T genotype was statistically significantly associated with a decreased survival in non-small cell lung cancer (NSCLC) patients, identified as an independent prognosis factor of survival (hazard ratio (HR) = 1.79; 95% CI: 1.00-3.20). In contrast, no association was found between the MMP3 -1171 5A/6A and the MMP9 -1562 C/T polymorphisms and survival.

Conclusions

These findings support the hypothesis that the MMP9 -1562 C/T polymorphism is associated with a protective effect against the development of lung cancer and suggest that the MMP2 -735 C/T polymorphism modify the length of survival in NSCLC patients."xsd:string
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http://purl.uniprot.org/citations/22455335http://purl.uniprot.org/core/author"Lopez-Cima M.F."xsd:string
http://purl.uniprot.org/citations/22455335http://purl.uniprot.org/core/author"Pascual T."xsd:string
http://purl.uniprot.org/citations/22455335http://purl.uniprot.org/core/author"Tardon A."xsd:string
http://purl.uniprot.org/citations/22455335http://purl.uniprot.org/core/author"Gonzalez-Arriaga P."xsd:string
http://purl.uniprot.org/citations/22455335http://purl.uniprot.org/core/author"Fernandez-Somoano A."xsd:string
http://purl.uniprot.org/citations/22455335http://purl.uniprot.org/core/author"Garcia-Alvarez A."xsd:string
http://purl.uniprot.org/citations/22455335http://purl.uniprot.org/core/date"2012"xsd:gYear
http://purl.uniprot.org/citations/22455335http://purl.uniprot.org/core/name"BMC Cancer"xsd:string
http://purl.uniprot.org/citations/22455335http://purl.uniprot.org/core/pages"121"xsd:string
http://purl.uniprot.org/citations/22455335http://purl.uniprot.org/core/title"Genetic polymorphisms in MMP 2, 9 and 3 genes modify lung cancer risk and survival."xsd:string
http://purl.uniprot.org/citations/22455335http://purl.uniprot.org/core/volume"12"xsd:string
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