title: Identification of susceptibility SNPs in IL10 and IL23R-IL12RB2 for Behçet's disease in Han Chinese.
abstract: Although previous genome-wide association studies in various cohorts have identified several susceptibility loci underlying Behçet's disease (BD), this has not yet led to a breakthrough in the management of BD.
  
  
  
  This study aimed to further investigate the association of 26 candidate single nucleotide polymorphisms with previous genome-wide association studies-identified nearly positive P values (5.0 × 10-8< P < 1.0 × 10-5) in Chinese Han patients with BD.
  
  
  
  A case-control association study was performed in 1206 patients with BD and 2475 healthy controls. Genotyping was performed using iPLEX Gold genotyping assay. Gene expression and cytokine production was quantified by real-time PCR and ELISA.
  
  
  
  The results showed that significantly higher frequencies of the IL23R-IL12RB2/rs924080 TT genotype (P = 2.03 × 10-8; odds ratio [OR] = 1.50), IL23R-IL12RB2/rs12141431 CC genotype (P = 2.18 × 10-8; OR = 1.53), IL10/rs1800871 TT genotype (P = 5.88 × 10-8; OR = 1.47), and IL10/rs3024490 TT genotype (P = 2.80 × 10-5; OR = 1.34) were found in BD. Functional experiments showed an increased IL23R expression and IL-17 production in rs12141431/CC genotype carriers compared with GG genotype carriers. A decreased IL10 expression and IL-10 production was observed in rs3024490/TT genotype carriers as compared with GG genotype carriers.
  
  
  
  Our findings not only confirmed the association of IL10/rs1800871 and IL23R-IL12RB2/rs924080 with BD but also identified 2 susceptibility single nucleotide polymorphisms in IL10 and IL23R-IL12RB2 (rs3024490 and rs12141431) with BD in Han Chinese.
authors.affiliation: The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology and Chongqing Eye Institute, Chongqing, China.
authors.forename: Hongsong
authors.initials: H
authors.lastname: Yu
authors.affiliation: The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology and Chongqing Eye Institute, Chongqing, China.
authors.forename: Minming
authors.initials: M
authors.lastname: Zheng
authors.affiliation: The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology and Chongqing Eye Institute, Chongqing, China.
authors.forename: Lijun
authors.initials: L
authors.lastname: Zhang
authors.affiliation: The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology and Chongqing Eye Institute, Chongqing, China.
authors.forename: Hua
authors.initials: H
authors.lastname: Li
authors.affiliation: The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology and Chongqing Eye Institute, Chongqing, China.
authors.forename: Yunyun
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology and Chongqing Eye Institute, Chongqing, China.
authors.forename: Ling
authors.initials: L
authors.lastname: Cheng
authors.affiliation: The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology and Chongqing Eye Institute, Chongqing, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Li
authors.affiliation: The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology and Chongqing Eye Institute, Chongqing, China.
authors.forename: Bolin
authors.initials: B
authors.lastname: Deng
authors.affiliation: University Eye Clinic Maastricht, Maastricht, The Netherlands.
authors.forename: Aize
authors.initials: A
authors.lastname: Kijlstra
authors.affiliation: The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology and Chongqing Eye Institute, Chongqing, China. Electronic address: peizengycmu@126.com.
authors.forename: Peizeng
authors.initials: P
authors.lastname: Yang
mesh_terms: D000328:Adult; D001528:Behcet Syndrome / Q000235:genetics*; D016022:Case-Control Studies; D002681:China; D016207:Cytokines / Q000235:genetics / Q000378:metabolism; D005260:Female; D005787:Gene Frequency; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D055106:Genome-Wide Association Study; D005838:Genotype; D006801:Humans; D016753:Interleukin-10 / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D018123:Receptors, Interleukin / Q000235:genetics*; D053707:Receptors, Interleukin-12 / Q000235:genetics*; D055815:Young Adult
chemical_list: D016207:Cytokines; C508439:IL12RB2 protein, human; C515500:IL23R protein, human; D018123:Receptors, Interleukin; D053707:Receptors, Interleukin-12; D016753:Interleukin-10
keywords: BD; IL10; IL12RB2; IL23R; susceptibility