title: Correlation of interleukin-10 gene haplotype with hepatocellular carcinoma in Taiwan.
abstract: Polymorphisms in cytokine genes can influence immune responses, inflammation and tissue injury, and may affect the outcome of hepatitis B virus (HBV) infection. We analyzed single nucleotide polymorphisms (SNP) in the interleukin (IL)-10 gene among 344 HBV carriers and 208 patients with hepatocellular carcinoma (HCC). Genotypes and haplotypes were tested for association with HCC. IL-10/-592 C/C genotype was associated with a higher risk for HCC compared with IL-10/-592 A/C and A/A genotypes [odds ratio (OR): 2.1, 95% confidence interval (CI): 1.2-3.6]. IL-10/1927 A/A genotype was also associated with a higher risk for HCC compared with IL-10/1927 A/C and C/C genotypes (OR: 1.5, 95% CI: 1.0-2.2). Haplotype analysis revealed that the homozygosity of the C-A haplotype (defined by SNPs at positions -592 and 1927) of IL-10 gene conveys the highest risk for HCC among HBV carriers compared with the homozygosity for the A-C haplotype (OR: 2.6, 95% CI: 1.3-4.9). The results demonstrate that IL-10 gene polymorphism can affect the outcome of chronic HBV infection. Further studies are necessary to clarify how variation in the IL-10 gene affects IL-10 function and risk of HCC.
authors.affiliation: Department of Medical Genetics and Internal Medicine, National Taiwan University Hospital, and Graduate Institutes of Clinical Medicine, National Taiwan University, Taipei, Taiwan.
authors.forename: L-H
authors.initials: LH
authors.lastname: Tseng
authors.forename: M-T
authors.initials: MT
authors.lastname: Lin
authors.forename: W-Y
authors.initials: WY
authors.lastname: Shau
authors.forename: W-C
authors.initials: WC
authors.lastname: Lin
authors.forename: F-Y
authors.initials: FY
authors.lastname: Chang
authors.forename: K-L
authors.initials: KL
authors.lastname: Chien
authors.forename: J A
authors.initials: JA
authors.lastname: Hansen
authors.forename: D-S
authors.initials: DS
authors.lastname: Chen
authors.forename: P-J
authors.initials: PJ
authors.lastname: Chen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D006528:Carcinoma, Hepatocellular / Q000453:epidemiology / Q000209:etiology / Q000235:genetics*; D016022:Case-Control Studies; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006239:Haplotypes; D006509:Hepatitis B / Q000150:complications / Q000235:genetics*; D006515:Hepatitis B virus; D006579:Heterozygote; D006801:Humans; D016753:Interleukin-10 / Q000235:genetics*; D015810:Linkage Disequilibrium; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D012307:Risk Factors; D013624:Taiwan / Q000453:epidemiology
chemical_list: D016753:Interleukin-10