title: Synergistic contribution of CD14 and HLA loci in the susceptibility to Buerger disease.
abstract: Buerger disease (BD) is an occulusive vascular disease of unknown etiology. Although cigarette smoking is a well-known risk factor of BD, genetic factors may also play a role in the etiology. Because chronic bacterial infection such as oral periodontitis is suggested to be involved in the pathogenesis of BD, gene polymorphisms involved in the infectious immunity might be associated with BD as the genetic factor(s). We have previously reported that HLA-DRB1*1501 and B54 was associated with BD in Japanese. In this study, polymorphisms in HLA-DPB1, DRB1 and B were analyzed in 131 Japanese BD patients and 227 healthy controls. In addition, we investigated a functional promoter polymorphism, -260 C > T, of CD14 that is a main receptor of bacterial lipopolysaccharide. It was found that the frequencies of CD14 TT genotype [37.4 vs. 24.2%, P = 0.008 OR = 1.87, 95% confidence interval (CI); 1.18, 2.97], DRB1*1501 (34.4 vs. 13.2%, P (c) = 4.4 x 10(-5), OR = 3.44, 95%CI; 2.06, 5.73) and DPB1*0501 (79.4 vs. 55.1%, P (c) = 4.7 x 10(-5), OR = 3.14, 95%CI; 1.93, 5.11) were significantly higher in the patients than in the controls, demonstrating that at least three genetic markers were associated with BD. Stratification analyses of these associated markers suggested synergistic roles of the genetic factors. Odds ratios ranged from 4.72 to 12.57 in individuals carrying any two of these three markers. These findings suggested that the susceptibility to BD was in part controlled by genes involved in the innate and adaptive immunity.
authors.affiliation: Department of Vascular and Applied Surgery, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan.
authors.forename: Zhiyong
authors.initials: Z
authors.lastname: Chen
authors.forename: Megumi
authors.initials: M
authors.lastname: Takahashi
authors.forename: Taeko
authors.initials: T
authors.lastname: Naruse
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Nakajima
authors.forename: Yi-Wen
authors.initials: YW
authors.lastname: Chen
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Inoue
authors.forename: Isao
authors.initials: I
authors.lastname: Ishikawa
authors.forename: Takehisa
authors.initials: T
authors.lastname: Iwai
authors.forename: Akinori
authors.initials: A
authors.lastname: Kimura
mesh_terms: D000483:Alleles; D016022:Case-Control Studies; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006680:HLA Antigens / Q000235:genetics*; D015235:HLA-B Antigens / Q000235:genetics; D006682:HLA-DP Antigens / Q000235:genetics; D059868:HLA-DP beta-Chains; D006684:HLA-DR Antigens / Q000235:genetics; D059811:HLA-DRB1 Chains; D006801:Humans; D018950:Lipopolysaccharide Receptors / Q000235:genetics*; D016017:Odds Ratio; D010518:Periodontitis / Q000150:complications / Q000235:genetics / Q000276:immunology; D011110:Polymorphism, Genetic; D013919:Thromboangiitis Obliterans / Q000209:etiology / Q000235:genetics* / Q000276:immunology*
chemical_list: D006680:HLA Antigens; D015235:HLA-B Antigens; D006682:HLA-DP Antigens; D059868:HLA-DP beta-Chains; C071170:HLA-DPB1 antigen; D006684:HLA-DR Antigens; D059811:HLA-DRB1 Chains; C489631:HLA-DRB1*15:01 antigen; D018950:Lipopolysaccharide Receptors