Hepatology:ID3促进干细胞特征并预测肝内胆管癌的化疗反应

2019-04-20 不详 MedSci原创

有文献报道,癌症干细胞在许多类型的癌症(包括肝内胆管细胞癌(ICC))中导致高复发率和化学治疗抗性。据报道,分化抑制因子3(ID3)可促进癌症干细胞的发生,但其在ICC中的作用不明确。

     有文献报道,癌症干细胞在许多类型的癌症(包括肝内胆管细胞癌(ICC))中导致高复发率和化学治疗抗性。据报道,分化抑制因子3(ID3)可促进癌症干细胞的发生,但其在ICC中的作用不明确。在本研究中,研究人员发现ID3在人ICC组织中高度表达,并且与预后不良相关。功能研究表明,ID3是体外和体内胆管癌干细胞维持所必需的因子。与ID3对癌症干细胞特征的调节一致,ID3的转基因表达增强了胆管癌细胞的化学抗性。此外,研究人员还发现ID3水平低的ICC患者可以从术后经动脉化疗栓塞中获益,而ID3水平高的患者则没有这样的获益,这表明ID3在个体化ICC治疗中具有重要意义。另外,ID3可以与E47相互作用并阻断E47募集到β-连环蛋白的启动子,这导致Wnt /β-连环蛋白信号传导的激活。因此,本项研究结果表明,ID3可以通过增加β-catenin的转录活性来促进ICC的干性,并可作为预测ICC患者对辅助化疗药物反应的生物标志物。

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    2019-04-22 gwc384
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