Brit J Cancer:RIPK4能够促进膀胱尿路上皮癌的细胞侵袭

2018-06-19 AlexYang MedSci原创

持续激活的核因子kappa B(NF-κB)信号在膀胱尿路上皮癌(BC)恶化过程中具有重要的作用。最近,有研究人员调查了受体互作蛋白激酶4(RIPK4)对NF-κB激活和BC恶化的影响。研究发现,在BC组织中,RIPK4高度表达,并且是不良总生存的一个独立预测因子。RIPK4表达的上调或者下调能够分别增强或者抑制BC细胞在体外和体内的迁移和入侵。同时,RIPK4能够促进肿瘤坏死因子受体相关因子2(

持续激活的核因子kappa B(NF-κB)信号在膀胱尿路上皮癌(BC)恶化过程中具有重要的作用。最近,有研究人员调查了受体互作蛋白激酶4(RIPK4)对NF-κB激活和BC恶化的影响。

研究发现,在BC组织中,RIPK4高度表达,并且是不良总生存的一个独立预测因子。RIPK4表达的上调或者下调能够分别增强或者抑制BC细胞在体外和体内的迁移和入侵。同时,RIPK4能够促进肿瘤坏死因子受体相关因子2(TRAF2)、受体互作蛋白(RIP)和NF-κB 必要调节因子(NEMO)的K63连接的聚泛素化作用。RIPK4同样能够促进NF-κB-p65的细胞和定位,并且维持NF-κB信号通路的激活状态,从而导致VEGF-A的上调,最后促进BC细胞的侵袭。

最后,研究人员指出,他们的数据强调了RIPK4在BC中的分子病因学和临床意义,即RIPK4表达上调能够导致NF-κB激活,之后上调VEGF-A和促进BC的发展。另外,以RIPK4为靶标也许代表了一种新的治疗策略,从而提高BC患者的生存。

原始出处:

Jian-Ye Liu, Qing-Hai Zeng, Pei-Guo Cao et al. RIPK4 promotes bladder urothelial carcinoma cell aggressiveness by upregulating VEGF-A through the NF-κB pathway. Brit J Cancer. 05 June 2018.

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