title: Case-control, kin-cohort and meta-analyses provide no support for STK15 F31I as a low penetrance colorectal cancer allele.
abstract: Recently, homozygosity for T91A single-nucleotide polymorphism (SNP) in the serine/threonine kinase (STK15) gene, which generates the substitution F31I has been proposed to increase the risk of a number of tumours including colorectal cancer (CRC). To further evaluate the relationship between STK15 F31I and risk of CRC, we genotyped 2558 CRC cases and 2680 controls for this polymorphism. We found no evidence that homozygosity for the STK15 31I genotype confers an increased risk of CRC (odds ratio=0.95, 95% confidence interval (CI): 0.74-1.24). We also conducted a kin-cohort analysis to assess risk among first-degree relatives of the CRC cases. The hazard ratio for I/I homozygotes compared to F/F homozygotes was 1.65 (95% CI: 0.39-3.17). A meta-analysis of our case-control data and three previous studies also provided no evidence of an elevated risk of CRC associated with homozygosity. These data provide no support for the hypothesis that sequence variation in STK15 defined by SNP F31I per se confers an elevated risk of CRC.
authors.affiliation: Section of Cancer Genetics, Institute of Cancer Research, Surrey, UK.
authors.forename: E L
authors.initials: EL
authors.lastname: Webb
authors.forename: M F
authors.initials: MF
authors.lastname: Rudd
authors.forename: R S
authors.initials: RS
authors.lastname: Houlston
mesh_terms: D000368:Aged; D000483:Alleles; D019943:Amino Acid Substitution / Q000235:genetics*; D064096:Aurora Kinase A; D064127:Aurora Kinases; D016022:Case-Control Studies; D015331:Cohort Studies; D015179:Colorectal Neoplasms / Q000235:genetics* / Q000473:pathology; D005192:Family Health; D005260:Female; D005787:Gene Frequency; D005838:Genotype; D006801:Humans; D015810:Linkage Disequilibrium; D008297:Male; D015201:Meta-Analysis as Topic; D008875:Middle Aged; D016017:Odds Ratio; D019683:Penetrance; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D017346:Protein Serine-Threonine Kinases / Q000235:genetics*
chemical_list: C576917:AURKA protein, human; D064096:Aurora Kinase A; D064127:Aurora Kinases; D017346:Protein Serine-Threonine Kinases