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Brit J Cancer:类血管生成素蛋白3能够阻断FAK的细胞核输入并有助于索拉非尼响应

2018-08-01 AlexYang MedSci原创

索拉非尼不良的药物反应是一个重要的挑战。不良药物反应减少了肾细胞癌(RCC)患者的临床益处。因此,阐释恢复索拉非尼治疗响应的潜在机制具有中重要的意义。最近,有研究人员利用蛋白免疫印迹和免疫组化技术在2个RCC患者群体中测量了类血管生成素蛋白3(ANGPTL3)含量水平。在RCC细胞中,研究人员利用功能丧失和功能获得试验用来调查ANGPTL3在索拉非尼治疗中的生物学作用,还利用人类蛋白组芯片和免疫沉

索拉非尼不良的药物反应是一个重要的挑战。不良药物反应减少了肾细胞癌(RCC)患者的临床益处。因此,阐释恢复索拉非尼治疗响应的潜在机制具有中重要的意义。

最近,有研究人员利用蛋白免疫印迹和免疫组化技术在2个RCC患者群体中测量了类血管生成素蛋白3(ANGPTL3)含量水平。在RCC细胞中,研究人员利用功能丧失和功能获得试验用来调查ANGPTL3在索拉非尼治疗中的生物学作用,还利用人类蛋白组芯片和免疫沉淀试验探索ANGPTL3功能的相关分子机制。研究发现,在索拉非尼治疗的RCC中,ANGPTL3表达上调,且与良好的索拉非尼临床反应相关。ANGPTL3的敲除能够导致RCC细胞对索拉非尼产生耐受性。同时,ANGPTL3能够与粘着斑激酶(FAK)结合并且能够抑制索拉非尼诱导的FAK细胞核运输,从而导致p53泛素化的减弱,进一步导致细胞凋亡和增强索拉非尼响应。

最后,研究人员指出,在RCC患者中,ANGPTL3可能是索拉非尼治疗响应的一个新的预测因子,并且是提高其治疗作用的潜在靶标。

原始出处:

Yi Bao, Fu Yang, Bing Liu et al. Angiopoietin-like protein 3 blocks nuclear import of FAK and contributes to sorafenib response. Brit J Cancer. 23 July 2018.

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    2018-08-03 ying_wu
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    2018-08-01 天地飞扬

    了解一下,谢谢分享!

    0

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研究人员发现,那些接受了一线基于免疫的组合疗法(IC)包括免疫检查点抑制剂(CPI)以及接受了随后的系统性治疗的患者的治疗结果到目前仍旧未知。最近,有研究人员对那些患有透明细胞肾细胞癌(mRCC)的连续性病人进行了回顾性分析。研究总共包括了33名患者【平均年龄57岁(37-77),85%为男性,73% ECOG 0】。对那些可以评价的患者(N=28),第一次后续治疗最好的响应为29%具有响应,54

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