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miR-200家族在上皮-间质转化中的研究进展 被引量:4

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摘要 0引言 microRNAs(简称miRNAs)是一类进化上高度保守的小分子非编码RNA,长度为21~23nt左右,具有转录后调控基因表达的功能。在癌组织中,它们的调节功能普遍异常,因此被认为是癌基因或是肿瘤抑制因子。miR.200家族成员通过结合并抑制靶基因mRNA的表达,抑制上皮间质转化、肿瘤细胞迁移、侵袭转移,这些靶基因包括参与上皮-间质转化的ZEBl基因和ZEB2基因,snail2,VEGFR-1,D.cateni/Wnt通路中β-catenin基因,EGFR抑制子抗性基因ERRFI-1和化疗药物抗性基因TUBB3,然而在胃癌细胞或胃癌组织中,由于上皮基因的沉默缺失,miR-200家族成员的表达普遍下降。
出处 《肿瘤防治研究》 CAS CSCD 北大核心 2013年第10期993-997,共5页 Cancer Research on Prevention and Treatment
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