miR-218在子宫颈癌组织中的表达及预测的靶基因的生物信息学分析
cnki（2014）
Abstract
目的 探讨miR-218在子宫颈癌组织中的表达,并对其预测的靶基因进行生物信息学分析,为miR-218在子宫颈癌发生中的作用机制研究提供理论基础.方法 利用miRNA芯片技术检测3份子宫颈癌组织及3份正常子宫颈组织中miRNA表达谱,用实时定量聚合酶链反应(PCR)法在55例子宫颈组织中进行验证.通过生物信息学预测miR-218的靶基因,并对其靶基因进行基因本体(G0)功能富集分析及KEGG信号转导通路富集分析.结果 芯片结果显示子宫颈癌组织中有15个miRNA表达上调(＞2倍),10个miRNA表达下调(＜0.5倍),其中miR-218下调最明显.miR-218预测靶基因集合功能富集于生物学调控、蛋白代谢、细胞迁移和黏附、细胞分化等生物学过程,以及蛋白结合、连接酶活性等分子功能上;KEGG通路分析涉及癌通道、黏附连接、胰岛素信号通路、凋亡等信号转导通路及前列腺癌、急性和慢性髓系白血病等疾病通路.结论 miR-218在子宫颈癌组织中呈低表达,miR-218预测靶基因集合显著富集在与肿瘤发生相关的信号通路中.
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Key words
Uterine cervical neoplasms,miRNA-218,Oligonucleotide array sequence analysis,Target gene,Bioinformatics
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