title: Association of TAP gene polymorphisms and risk of cervical intraepithelial neoplasia.
abstract: BACKGROUND
  Transporter associated with antigen processing (TAP) is responsible for peptide loading onto class I major histocompatibility complex (MHC-I) molecules. TAP seems to facilitate the detection of HPV by MHC-I molecules and contributes to successful eradication of HPV. TAP polymorphisms could have an important impact on the course of HPV infection.
  
  
  OBJECTIVE
  The aim of this study is to evaluate the association between five TAP gene polymorphisms and the risk of CIN. Methods. This case-control study investigated five common TAP polymorphisms in TAP1 (1341 and 2254) and TAP2 (1135, 1693, and 1993) in 616 women with CIN and 206 controls. Associations between gene polymorphisms and risk of CIN were analysed by univariate and multivariable models. The combined effect of the five TAP gene polymorphisms on the risk for CIN was investigated by haplotype analysis.
  
  
  RESULTS
  No significant difference in genotype distribution of the five TAP polymorphisms was observed in women with CIN and controls. Haplotype analysis revealed that women with haplotype mut-wt-wt-wt-wt (TAP polymorphisms t1135-t1341-t1693-t1993-t2254) had a significantly lower risk for CIN, compared to women with the haplotype wt-wt-wt-wt-wt (P = 0.006; OR 0.5 [0.35-0.84]).
  
  
  CONCLUSIONS
  Identification of this haplotype combination could be used to identify women, less susceptible for development of CIN following HPV infection.
authors.affiliation: Department of General Gynaecology and Gynaecological Oncology, Comprehensive Cancer Center, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
authors.forename: Camilla
authors.initials: C
authors.lastname: Natter
authors.forename: Stephan
authors.initials: S
authors.lastname: Polterauer
authors.forename: Jasmin
authors.initials: J
authors.lastname: Rahhal-Schupp
authors.forename: Dan
authors.initials: D
authors.lastname: Cacsire Castillo-Tong
authors.forename: Sophie
authors.initials: S
authors.lastname: Pils
authors.forename: Paul
authors.initials: P
authors.lastname: Speiser
authors.forename: Robert
authors.initials: R
authors.lastname: Zeillinger
authors.forename: Georg
authors.initials: G
authors.lastname: Heinze
authors.forename: Christoph
authors.initials: C
authors.lastname: Grimm
mesh_terms: D000071181:ATP Binding Cassette Transporter, Subfamily B, Member 2; D000071450:ATP Binding Cassette Transporter, Subfamily B, Member 3; D018528:ATP-Binding Cassette Transporters / Q000235:genetics*; D016022:Case-Control Studies; D005260:Female; D005787:Gene Frequency; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D006239:Haplotypes; D006801:Humans; D020641:Polymorphism, Single Nucleotide; D012307:Risk Factors; D002583:Uterine Cervical Neoplasms / Q000235:genetics*; D002578:Uterine Cervical Dysplasia / Q000235:genetics*
chemical_list: D000071181:ATP Binding Cassette Transporter, Subfamily B, Member 2; D000071450:ATP Binding Cassette Transporter, Subfamily B, Member 3; D018528:ATP-Binding Cassette Transporters; C073119:TAP1 protein, human; C071692:TAP2 protein, human