title: Ten polymorphisms of estrogen-metabolizing genes and a family history of colon cancer--an association study of multiple gene-gene interactions.
abstract: Estrogen replacement therapy is associated with a reduced risk of colon cancer. Therefore, we evaluated the following ten estrogen metabolism-associated single-nucleotide polymorphisms (SNPs) by sequencing-on-chip technology using solid-phase polymerase chain reaction (PCR) on oligonucleotide microarrays: catechol-O-methyltransferase (COMT) Val158Met G-->A, 17-beta-hydroxysteroid dehydrogenase type 1 (HSD17) vlV A-->C, cytochrome P-450 (CYP) 17 A2 allele T-->C, CYP1A1 MspI RFLP T-->C, CYP1A1 Ile462Val A-->G, CYP19 Arg264Cys C-->T, CYP19 C1558T C-->T, CYP 1B1 Leu432Val, CYP1B1 Asn453Ser, and estrogen receptor (ER) alpha IVS1 -401-->C in 76 patients with a family history of colon cancer and 722 healthy controls. Using stepwise logistic regression models, we found that none of the investigated SNPs is associated with a family history of colon cancer in a univariate and multivariate logistic regression model. In addition, when all two-way interactions of the investigated SNPs were ascertained, no significant interactions between SNPs were observed. In conclusion, we found no association between the carriage of one or multiple SNPs of the estrogen metabolism and a family history of colon cancer.
authors.affiliation: Department of Gynecologic Endocrinology and Infertility Treatment, Medical University of Vienna, Vienna, Austria.
authors.forename: Ambros
authors.initials: A
authors.lastname: Huber
authors.forename: Eva-Katrin
authors.initials: EK
authors.lastname: Bentz
authors.forename: Christian
authors.initials: C
authors.lastname: Schneeberger
authors.forename: Johannes C
authors.initials: JC
authors.lastname: Huber
authors.forename: Lukas
authors.initials: L
authors.lastname: Hefler
authors.forename: Clemens
authors.initials: C
authors.lastname: Tempfer
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D003110:Colonic Neoplasms / Q000235:genetics*; D004967:Estrogens / Q000378:metabolism*; D005260:Female; D020869:Gene Expression Profiling; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D008875:Middle Aged; D020411:Oligonucleotide Array Sequence Analysis; D010375:Pedigree; D016133:Polymerase Chain Reaction; D020641:Polymorphism, Single Nucleotide; D011960:Receptors, Estrogen; D012307:Risk Factors
chemical_list: D004967:Estrogens; D011960:Receptors, Estrogen