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首页> 外文期刊>Cell cycle >Depletion of Aurora a leads to upregulation of FoxO1 to induce cell cycle arrest in hepatocellular carcinoma cells
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Depletion of Aurora a leads to upregulation of FoxO1 to induce cell cycle arrest in hepatocellular carcinoma cells

机译:极光a的耗尽导致FoxO1上调以诱导肝癌细胞的细胞周期停滞

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摘要

Aurora A kinase has drawn considerable attention as a therapeutic target for cancer therapy. However, the underlying molecular and cellular mechanisms of the anticancer effects of Aurora A kinase inhibition are still not fully understood. Herein, we show that depletion of Aurora A kinase by RNA interference (RNAi) in hepatocellular carcinoma (HCC) cells upregulated FoxO1 in a p53-dependent manner, which induces cell cycle arrest. Introduction of an RNAi-resistant Aurora A kinase into Aurora A-knockdown cells resulted in downregulation of FoxO1 expression and rescued proliferation. In addition, silencing of FoxO1 in Aurora A-knockdown cells allowed the cells to exit cytostatic arrest, which, in turn, led to massive cell death. Our results suggest that FoxO1 is responsible for growth arrest at the G2/M phase that is induced by Aurora A kinase inhibition.
机译:作为癌症治疗的治疗靶标,Aurora A激酶引起了极大的关注。但是,对Aurora A激酶抑制作用的抗癌作用的潜在分子和细胞机制仍未完全了解。在这里,我们显示肝细胞癌(HCC)细胞中RNA干扰(RNAi)消耗Aurora A激酶以p53依赖性方式上调FoxO1,从而诱导细胞周期停滞。将耐RNAi的Aurora A激酶引入Aurora A敲低细胞导致FoxO1表达下调并挽救了增殖。此外,在Aurora A-knockdown细胞中使FoxO1沉默可使细胞退出抑制细胞生长的细胞停滞,进而导致大量细胞死亡。我们的结果表明FoxO1负责Aurora A激酶抑制诱导的G2 / M期生长停滞。

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