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胃癌组织TSER多态性与5-Fu体外药敏的关系

Cancer Research on Prevention and Treatment(2009)

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Abstract
目的 探讨胃癌组织胸苷酸合成酶增强子区(TSER)多态性与5-Fu体外药敏的关系.方法 对45例胃癌患者新鲜标本进行体外肿瘤细胞原代培养,用ATP-TCA法检测肿瘤细胞对5-Fu的敏感性并用PCR法检测肿瘤的TSER多态性,分析TSER多态性分布频率与体外药敏有效率的关系.结果 TSER多态性三种基因型频率分布:2R/2R、2R/3R、3R/3R基因组分别为6.7%(3/45)、31.1%(14/45)和62.2%(28/45).5-Fu总有效率为33.3%(14/42).3R/3R基因组26例,有效5例,无效21例,有效率19.2%;(2R/2R、2R/3R)基因组16例,有效9例,无效7例,有效率56.3%.TSER基因型组之间对5-Fu敏感性存在显著差异性(P<0.05).结论 TSER多态性对5-Fu化疗敏感性可能有关,基因型检测可能有助于预测胃癌组织对5-Fu化疗敏感性.
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Key words
chemosensitivity assay in vitro,thymidylate synthase enhancer region(tser) polymorphism,5-fluorouracil,gastric cancer,genotypes
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