title: Association between the functional polymorphism in the matrix metalloproteinase-7 promoter and susceptibility to adult astrocytoma.
abstract: To study the association between the A to G transition at the -181-bp position in the promoter of matrix metalloproteinase-7 gene (MMP-7-181A/G) and susceptibility to adult astrocytoma, the MMP-7-181A/G polymorphism was genotyped by PCR-RFLP analysis among 221 adult astrocytoma patients and 366 healthy controls in a population of northern China. The result showed that the overall distribution of the MMP-7 genotypes among astrocytoma patients and healthy controls was significantly different (P<0.001). Compared with the A/A genotype, the G/G genotype significantly increased the risk to the development of astrocytoma (age and gender adjusted OR=2.77, 95% CI=1.27-6.02), while the MMP-7 A/G genotype only marginally increased the risk of developing this cancer (age and gender adjusted OR=1.66, 95% CI=0.99-2.84). Stratification analysis showed that the G/G genotype significantly increased the risk of astrocytoma only among male subjects (age adjusted OR=3.24, 95% CI=1.12-9.41) and individuals younger than 45 years (age and gender adjusted OR=3.16, 95% CI=1.09-9.16). When stratified by histological grades, a significant higher risk for developing grade II astrocytoma was observed among individuals harboring the A/G genotype (age and gender adjusted OR=2.06, 95% CI=1.05-4.05), while an about 3-fold elevation of risk to develop grades II, III, and IV astrocytomas was observed among individuals with the G/G genotype. The present result, for the first time, suggested that the MMP-7-181A/G polymorphism might be associated with the susceptibility to adult astrocytoma.
authors.affiliation: Department of Neurosurgery, The Second Affiliated Hospital, Hebei Medical University, Hepinglu 205, Shijiazhuang, China. zhongqianglu@yahoo.com.cn
authors.forename: Zhongqiang
authors.initials: Z
authors.lastname: Lu
authors.forename: Yimin
authors.initials: Y
authors.lastname: Wang
authors.forename: Qingjun
authors.initials: Q
authors.lastname: Zhang
authors.forename: Xianghong
authors.initials: X
authors.lastname: Zhang
authors.forename: Shuheng
authors.initials: S
authors.lastname: Wang
authors.forename: Huiling
authors.initials: H
authors.lastname: Xie
authors.forename: Yuehong
authors.initials: Y
authors.lastname: Li
authors.forename: Baohua
authors.initials: B
authors.lastname: Jiao
authors.forename: Jianhui
authors.initials: J
authors.lastname: Zhang
mesh_terms: D000328:Adult; D000367:Age Factors; D001254:Astrocytoma / Q000201:enzymology / Q000235:genetics* / Q000503:physiopathology; D014408:Biomarkers, Tumor / Q000235:genetics; D001932:Brain Neoplasms / Q000201:enzymology / Q000235:genetics* / Q000503:physiopathology; D004252:DNA Mutational Analysis; D005260:Female; D005787:Gene Frequency; D005819:Genetic Markers / Q000235:genetics; D020022:Genetic Predisposition to Disease / Q000235:genetics*; D005820:Genetic Testing; D005838:Genotype; D006801:Humans; D008297:Male; D020783:Matrix Metalloproteinase 7 / Q000235:genetics* / Q000378:metabolism; D008875:Middle Aged; D011110:Polymorphism, Genetic / Q000235:genetics*; D011401:Promoter Regions, Genetic / Q000235:genetics*; D012737:Sex Factors
chemical_list: D014408:Biomarkers, Tumor; D005819:Genetic Markers; D020783:Matrix Metalloproteinase 7