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Cancer Gene Therapy:UNC5B能够介导膀胱癌细胞的G2/M期阻滞

2020-05-25 AlexYang MedSci原创

在许多类型的癌症中,UNC5B是一个已知的肿瘤抑制基因。作为一个跨膜蛋白,UNC5B同样能够以P53依赖的方式诱导细胞凋亡。

在许多类型的癌症中,UNC5B是一个已知的肿瘤抑制基因。作为一个跨膜蛋白,UNC5B同样能够以P53依赖的方式诱导细胞凋亡。

最近,有研究人员在膀胱癌细胞中,通过质谱分析和生物信息学分析,阐释了UNC5B能够通过G2/M细胞周期阻滞来抑制细胞增殖。另外,通过与CDC14A和P53的结合,UNC5B能够在Ser-315位点对P53蛋白进行去磷酸化。该去磷酸化过程能够通过减少细胞周期蛋白B1的表达和增加p-CDK21的表达促进G2/M细胞周期阻滞,从而抑制肿瘤的增殖。体外试验中,CDC14A敲除能够抑制UNC5B诱导的G2/M细胞周期阻滞,并消除体内试验中UNC5B对肿瘤增殖的抑制作用。

最后,研究人员指出,他们的结果表明了UNC5B介导的细胞周期阻滞可能是膀胱癌治疗的潜在方法。

原始出处:

Yexiang Huang, Yuyan Zhu, Zhe Zhang et al. UNC5B mediates G2/M phase arrest of bladder cancer cells by binding to CDC14A and P53. Cancer Gene Therapy. 06 May 2020

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    2021-01-01 cy0324
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    2020-05-27 yxch36
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    2020-05-25 留走人康

    膀胱癌真怪,明明是免疫敏感性肿瘤,为什么PD-1治疗效果不好呢?难道靶点不对?将来CD47会不会有效

    0

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