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首页> 外文期刊>Cancer Medicine >Association between variants in inflammation and cancer‐associated genes and risk and survival of cholangiocarcinoma
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Association between variants in inflammation and cancer‐associated genes and risk and survival of cholangiocarcinoma

机译:炎症和癌症相关基因的变异与胆管癌的风险和生存之间的关联

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摘要

AbstractGenetic risk factors for cholangiocarcinoma (CCA) remain poorly understood. We assessed the effect of single-nucleotide polymorphisms (SNPs) of genes modulating inflammation or carcinogenesis on CCA risk and survival. We conducted a case-control, candidate gene association study of 370 CCA patients and 740 age-, sex-, and residential area-matched healthy controls. Eighteen functional or putatively functional SNPs in nine genes were genotyped. The log-additive genotype effects of SNPs on CCA risk and survival were determined using logistic regression and the log-rank test, respectively. Initial analysis identified significant associations between SNP rs2143417 and rs689466 in cyclooxygenase 2 (COX-2) and CCA risk, after adjusting for multiple comparisons (cutoff of P = 0.0028). However, these findings were not replicated in another independent cohort of 212 CCA cases and 424 matched controls. No significant association was found between any SNP and survival of CCA patients. Although COX-2 has been shown to contribute to cholangiocarcinogenesis, the COX-2 SNPs tested were not associated with risk of CCA. This study shows a lack of association between variants of genes related to inflammation and carcinogenesis and CCA risk and survival. Other factors than these genetic variants may play more important roles in CCA risk and survival.
机译:摘要胆管癌(CCA)的遗传危险因素仍然知之甚少。我们评估了调节炎症或致癌作用的基因的单核苷酸多态性(SNP)对CCA风险和生存的影响。我们对370位CCA患者和740位年龄,性别和居住区匹配的健康对照进行了病例对照,候选基因关联研究。对9个基因中的18个功能性或推定功能性SNP进行了基因分型。分别使用logistic回归和log-rank检验确定SNP对CCA风险和生存的对数加和基因型效应。初步分析发现,在校正了多个比较后(临界值P = 0.0028),环氧化酶2(COX-2)中的SNP rs2143417和rs689466与CCA风险之间存在显着关联。但是,这些发现并未在212个CCA病例和424个匹配的对照的另一个独立队列中重复。没有发现任何SNP与CCA患者的生存之间有显着关联。尽管已证明COX-2有助于胆管癌发生,但所测试的COX-2 SNP与CCA的风险无关。这项研究表明与炎症和致癌相关的基因变异与CCA风险和生存之间缺乏关联。除了这些遗传变异之外,其他因素可能在CCA风险和生存中起更重要的作用。

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