PURPOSE: Matrix metalloproteinase-9 (MMP-9, gelatinase B) plays a key role in cancer invasion and metastasis by degradating the extracellular matrix (ECM) and basement membrane barriers. A cytosine (C)-thymidine (T) single nucleotide polymorphism (SNP) at position -1562 in the MMP-9 promoter is reported to affect expression of this gene. The purpose of this study was to investigate the relation between the -1562 C/T polymorphism and the development and progression of gastric cancer. METHODS: The study population included 177 gastric cancer patients and 224 healthy control subjects. The SNP in the MMP-9 promoter was analyzed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and sequencing. Genotype frequencies were compared between patients and controls, and the association of genotypes with clinicopathological features was studied. RESULTS: Genotype frequencies in gastric cancer patients were similar to those in control subjects (P = 0.223). However, significant association was found between degree of tumor invasion, clinical stage, and lymphatic invasion and the MMP-9 polymorphism in gastric cancer patients (P<0.05, for each). CONCLUSIONS: Our results indicate that the T allele in the MMP-9 promoter is associated with the invasive phenotype of gastric cancer.
PURPOSE:Matrix metalloproteinase-9 (MMP-9, gelatinase B) plays a key role in cancer invasion and metastasis by degradating the extracellular matrix (ECM) and basement membrane barriers. A cytosine (C)-thymidine (T) single nucleotide polymorphism (SNP) at position -1562 in the MMP-9 promoter is reported to affect expression of this gene. The purpose of this study was to investigate the relation between the -1562 C/T polymorphism and the development and progression of gastric cancer. METHODS: The study population included 177 gastric cancerpatients and 224 healthy control subjects. The SNP in the MMP-9 promoter was analyzed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and sequencing. Genotype frequencies were compared between patients and controls, and the association of genotypes with clinicopathological features was studied. RESULTS: Genotype frequencies in gastric cancerpatients were similar to those in control subjects (P = 0.223). However, significant association was found between degree of tumor invasion, clinical stage, and lymphatic invasion and the MMP-9 polymorphism in gastric cancerpatients (P<0.05, for each). CONCLUSIONS: Our results indicate that the T allele in the MMP-9 promoter is associated with the invasive phenotype of gastric cancer.
Authors: B Zhang; S Ye; S M Herrmann; P Eriksson; M de Maat; A Evans; D Arveiler; G Luc; F Cambien; A Hamsten; H Watkins; A M Henney Journal: Circulation Date: 1999-04-13 Impact factor: 29.690
Authors: Pedro E Ferrand; Samuel Parry; Mary Sammel; George A Macones; Helena Kuivaniemi; Roberto Romero; Jerome F Strauss Journal: Mol Hum Reprod Date: 2002-05 Impact factor: 4.025