title: Plasminogen activator inhibitor 1 (PAI-1) 1334G/A genetic polymorphism in colorectal cancer.
abstract: Plasminogen activator inhibitor 1 (PAI-1) content in colorectal cancer tissue extracts may be of strong prognostic value: high levels of PAI-1 in tumours predict poor prognosis. The gene encoding PAI-1 is highly polymorphic and PAI-1 gene variability could contribute to the level of PAI-1 biosynthesis. In the present work the distribution of genotypes and frequency of alleles of the 1334G/A polymorphism in 92 subjects with colorectal cancer in samples of cancer tissue and distant mucosa samples as well as in blood were investigated. Blood samples age matched healthy individuals (n = 110) served as control. The 1334G/A polymorphism was determined by PCR amplification using allele specific primers. No differences in the genotype distributions and allele frequencies between blood, distant mucosa samples and cancer tissue were detected. However, the distribution of the genotypes of the 1334G/A polymorphism in patients differed significantly (P <0.05) from those predicted by the Hardy-Weinberg equilibrium. There were significant differences in the frequencies of alleles between the colorectal cancer subjects and controls (P <0.05). The results support the hypothesis that the 1334G/A polymorphism may be associated with the incidence of colorectal cancer.
authors.affiliation: Laboratory of Molecular Genetics, Department of Pathology, Institute of Polish Mother's Memorial Hospital, Rzgowska 281/289, 93-338 Łódź, Poland. smolbea@wp.pl
authors.forename: Beata
authors.initials: B
authors.lastname: Smolarz
authors.forename: Hanna
authors.initials: H
authors.lastname: Romanowicz-Makowska
authors.forename: Andrzej
authors.initials: A
authors.lastname: Kulig
mesh_terms: D000328:Adult; D000368:Aged; D000483:Alleles; D015179:Colorectal Neoplasms / Q000235:genetics* / Q000473:pathology; D005260:Female; D005787:Gene Frequency; D005838:Genotype; D006801:Humans; D008297:Male; D008875:Middle Aged; D008957:Models, Genetic; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D017395:Plasminogen Activator Inhibitor 1 / Q000235:genetics*; D011110:Polymorphism, Genetic / Q000235:genetics*; D011401:Promoter Regions, Genetic
chemical_list: D017395:Plasminogen Activator Inhibitor 1