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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/111626


    Title: Interleukin-18 promoter genotype is associated with the risk of nasopharyngeal carcinoma in Taiwan
    Authors: Hua, Chung-Yu;Huang, Chung-Yu;Cha, Wen-Shin;Chang, Wen-Shin;Tsa, Chia-Wen;Tsai, Chia-Wen;Hsia, Te-Chun;Hsia, Te-Chun;Shen, Te-Chun;Shen, Te-Chun;Bau, Da-Tian;Bau, Da-Tian;Shui, Hao-Ai;Shui, Hao-Ai
    Contributors: 生物資訊與醫學工程學系
    Date: 2018-10
    Issue Date: 2018-12-24 16:08:21 (UTC+8)
    Abstract: Background
    The incidence rate of nasopharyngeal carcinoma (NPC) has been documented to be high in Southeast Asia. Interleukin-18 (IL-18) is a multifunctional cytokine that augments interferon-γ production and acts as an important immunomediator in the development of several types of cancer.

    Patients and methods
    This case–control study evaluated the role of IL-18 in NPC at the DNA level by genotyping its promoter polymorphisms at positions -656, -607, and -137 in a Taiwanese population. A total of 176 patients with NPC and age- and gender-matched 352 noncancer controls were included in this study.

    Results
    The CC genotype of the IL-18-607 polymorphism was found to be associated with significantly decreased risks of NPC compared to the AA genotype (crude OR =0.50, 95% CI =0.29–0.84, P=0.0093). This significant difference persisted even in the dominant and recessive models. A significantly lower C allele frequency at position -607 was detected in the NPC group

    (41.8% vs 50.3%; OR =0.77; 95% CI =0.63–1.04, P=0.0089). Regarding IL-18-656 and -137 polymorphisms, there were no differential distributions of their genotypes between the NPC and control groups. After substratification of the subjects according to their smoking, alcohol consumption, and areca chewing status, the genotype distribution of the IL-18-607 polymorphism was found to be different only among nonsmokers between the NPC and control subgroups.

    Conclusion
    This study suggests that IL-18 plays an important role in the carcinogenesis of NPC in Taiwan and that the genotype–phenotype correlation of IL-18-607 polymorphism and its contribution to NPC need to be investigated further.
    Relation: Cancer Management and Research
    Appears in Collections:[生物資訊與醫學工程學系 ] 期刊論文

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