Abstract
The tissue inhibitor of metalloproteinase-2 (TIMP-2) is a critical inhibitor of matrix metalloproteinases (MMPs). Along with MMPs, TIMP-2 regulates the breakdown and remodeling of the extracellular matrix (ECM) and basement membranes. This study investigated the role of genotypes of the TIMP-2 -418G/C (rs8179090) single nucleotide polymorphism on lung risk. A total of 358 lung cancer patients and 716 healthy subjects were recruited in this study. Genotypes were identified via the polymerase chain reaction-restriction fragment length polymorphism methodology. The distribution of alleles and genotype frequencies of TIMP-2 -418G/C genotypes between the two groups were compared and no statistically significant difference (p>0.05) was found. The heterozygous and homozygous variant genotypes showed no differential distribution between the control and case groups (p>0.05). TIMP-2 -418G/C variants might not be associated with lung cancer susceptibility and could not serve as predictors.
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