title: Sequence variants in toll-like receptor 10 are associated with nasopharyngeal carcinoma risk.
abstract: Nasopharyngeal carcinoma (NPC) is a common malignancy in southern China and Southeast Asia. Genetic susceptibility is a major factor in determining the individual risk of NPC in these areas. To test the association between NPC and variants in Toll-like receptor 10 (TLR10), we conducted a hospital-based case-control study in a Cantonese-speaking population in Guangdong province. Seven single nucleotide polymorphisms in TLR10, selected with a tagging algorithm, were genotyped. When assessing each unique haplotype compared with the most common haplotype, "GAGTGAA," with the expectation-maximization algorithm in Haplo.stats, the risk of developing NPC was significantly elevated among men who carried the haplotype "GCGTGGC" (P = 0.005). After adjusting for age, gender, and VCA-IgA antibody titers, this association was more significant (P = 0.0007). To further assess the overall differences of haplotype frequency profiles between cases and healthy controls, the global score test, considering all haplotypes and adjusting for age, gender, and VCA-IgA antibody titers, gave a haplo score of 27.52 with P = 0.002. The haplotype specific odds ratio was 2.66 (confidence interval, 1.34-3.82) for GCGTGGC. We concluded that in this Cantonese population-based study, haplotype GCGTGGC with frequency of 11.4% in TLR10 was found to be associated with NPC and this association was statistically significant after adjusting for age, gender, and VCA-IgA antibody titers. It is possible that this is not a causal haplotype for NPC; rather, it is in strong linkage disequilibrium with a causal single nucleotide polymorphism in close proximity.
authors.affiliation: Sun Yat-sen University, Cancer Center, 651 Dong-Feng Road East, 510060 Guangzhou, China.
authors.forename: Xin-Xi
authors.initials: XX
authors.lastname: Zhou
authors.forename: Wei-Hua
authors.initials: WH
authors.lastname: Jia
authors.forename: Guo-Ping
authors.initials: GP
authors.lastname: Shen
authors.forename: Hai-de
authors.initials: HD
authors.lastname: Qin
authors.forename: Xing-Juan
authors.initials: XJ
authors.lastname: Yu
authors.forename: Li-Zhen
authors.initials: LZ
authors.lastname: Chen
authors.forename: Qi-Sheng
authors.initials: QS
authors.lastname: Feng
authors.forename: Yin Yao
authors.initials: YY
authors.lastname: Shugart
authors.forename: Yi-Xin
authors.initials: YX
authors.lastname: Zeng
mesh_terms: D000328:Adult; D000465:Algorithms; D016022:Case-Control Studies; D016009:Chi-Square Distribution; D002681:China / Q000453:epidemiology; D020022:Genetic Predisposition to Disease; D014644:Genetic Variation; D005838:Genotype; D006239:Haplotypes; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009303:Nasopharyngeal Neoplasms / Q000453:epidemiology / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide; D051201:Toll-Like Receptor 10 / Q000235:genetics*
chemical_list: D051201:Toll-Like Receptor 10