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首页> 外文期刊>Cancer letters >MicroRNA-135b acts as a tumor promoter by targeting the hypoxia-inducible factor pathway in genetically defined mouse model of head and neck squamous cell carcinoma
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MicroRNA-135b acts as a tumor promoter by targeting the hypoxia-inducible factor pathway in genetically defined mouse model of head and neck squamous cell carcinoma

机译:MicroRNA-135b通过靶向缺氧诱导因子途径在头颈部鳞状细胞癌基因定义的小鼠模型中充当肿瘤启动子

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Here in, we investigated the mechanism underlying overexpression of miR-135b in the human head and neck squamous cell carcinoma (HNSCC) cell lines and in the HNSCC mouse model. Exogenous expression of miR-135b in these cell lines increased cell proliferation, migration, and colony formation. Gene silencing analysis revealed that miR-135b affects a regulator that inhibits hypoxia-inducible factor (HIF). Increased miR-135b expression was positively correlated with HIF-1α expression and microvessel density in the HNSCC model. Thus, our data demonstrate that miR-135b acts as a tumor promoter by promoting cancer cell proliferation, colony formation, survival, and angiogenesis through activation of HIF-1α in HNSCC.
机译:在这里,我们研究了人类头颈部鳞状细胞癌(HNSCC)细胞系和HNSCC小鼠模型中miR-135b过表达的潜在机制。 miR-135b在这些细胞系中的外源表达增加了细胞增殖,迁移和集落形成。基因沉默分析显示,miR-135b影响抑制缺氧诱导因子(HIF)的调节剂。在HNSCC模型中,增加的miR-135b表达与HIF-1α表达和微血管密度呈正相关。因此,我们的数据表明,miR-135b通过激活HNSCC中的HIF-1α来促进癌细胞的增殖,集落形成,存活和血管生成,从而充当肿瘤启动子。

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