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Oncogene:Lim1致瘤基因是转移性人类肾细胞癌的新的治疗靶标

2018-08-11 AlexYang MedSci原创

尽管在抗血管生成靶向治疗和免疫检查点抑制剂的发现中具有进步和发展,但是转移性透明肾细胞癌(CCC)仍旧是不可治愈的。研究人员之前报道了sonic hedgehog-Gli信号通路在CCC中是致瘤性的,这也让研究人员在CCC中鉴定了发育Lim1转录因子可作为Gli靶标和CCC中一个新的可调控细胞增殖和凋亡的致瘤基因,并且能够促进肿瘤生长。之前研究的初级体外试验结果同样表明了Lim1可能在转移性传播中

尽管在抗血管生成靶向治疗和免疫检查点抑制剂的发现中具有进步和发展,但是转移性透明肾细胞癌(CCC)仍旧是不可治愈的。研究人员之前报道了sonic hedgehog-Gli信号通路在CCC中是致瘤性的,这也让研究人员在CCC中鉴定了发育Lim1转录因子可作为Gli靶标和CCC中一个新的可调控细胞增殖和凋亡的致瘤基因,并且能够促进肿瘤生长。之前研究的初级体外试验结果同样表明了Lim1可能在转移性传播中有作用。

最近,有研究人员调查了在晚期CCC中Lim1潜在的抗转移作用。研究发现,体外试验结果阐释了Lim1的敲除能够时间依赖的减少CCC细胞运动性、迁移、侵袭和克隆原性,不考虑它们的VHL状态,减少程度最高可达到50%。通过调查参与上述过程的分子机制,研究人员鉴定了Lim1的一系列靶标基因,这些靶标基因为已知的参与细胞粘附(桩蛋白和纤维连接)的基因、上皮间质转化(Twist1/2和snail)基因、侵入(MMP1/2/3/8/9)和转移过程相关基因(CXCR4, SDF-1和ANG-1)。重要的是,Lim1在所有的转移性组织中持续的表达。另外,转移性组织的H评分要比相关原发性肿瘤组织评分显著性更优(P=0.009)。进一步的是,就人类CCC体内转移模型中的数目和大小而言,研究人员还展示了Lim1沉默能够减少肺转移的发展。

最后,研究人员指出,他们的试验强调了Lim1的潜在治疗价值,可以作为治疗转移性人类CCC的有希望的潜在的新方法。

原始出处:

Imène Hamaidi, Catherine Coquard, Sabrina Danilin et al. The Lim1 oncogene as a new therapeutic target for metastatic human renal cell carcinoma. Oncogene. 03 Aug 2018.

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    2018-08-15 cy0324
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    2018-08-13 zhaojie88
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    2018-08-12 医者仁心5538

    学习了

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