Sci Rep:Myoferlin沉默能够抑制VEGFR2介导的转移透明细胞肾细胞癌增殖

2019-09-16 AlexYang MedSci原创

最近,一种靶向血管内皮生长因子受体(VEGFR)的药物-雷莫芦单抗获得临床批准;因此,有研究人员在透明细胞肾细胞癌(CCRCC)中评估了VEGFR2的表达并预测了在肿瘤恶化中的作用。由于目前在治疗恶性肾细胞癌中没有更多的选择,抗VEGFR2疗法也许是有用的。Myoferlin (MYOF)大小为230 kDa的跨膜蛋白,且具多个C2结构域,能够在质膜修复、融合和内吞作用中起作用,并在一些浸润癌症细

最近,一种靶向血管内皮生长因子受体(VEGFR)的药物-雷莫芦单抗获得临床批准;因此,有研究人员在透明细胞肾细胞癌(CCRCC)中评估了VEGFR2的表达并预测了在肿瘤恶化中的作用。

由于目前在治疗恶性肾细胞癌中没有更多的选择,抗VEGFR2疗法也许是有用的。Myoferlin (MYOF)大小为230 kDa的跨膜蛋白,且具多个C2结构域,能够在质膜修复、融合和内吞作用中起作用,并在一些浸润癌症细胞系中过表达,包括了乳腺、胰腺和恶性黑色素瘤。MYOF能够与VEGFR2形成复合物来抑制VEGFR2的降解。在该篇文章研究中,共包括了152名经历了肾切除术的CCRCC患者。研究发现,基于组织芯片(TMA)块,MYOF的阳性强度和高比例与VEGFR2的阴性强度(p<0.001)和低比例(p<0.001)具有显著的相关性。另外,Fuhrman's核分级≥3表现出了与VEGFR2表达显著的相关性。在多变量分析中,阳性MYOF和阴性VEGFR2表达的CCRCC患者具有不良的临床结果。在该CCRCC群体中,研究人员确认了阳性MYOF表达阴性VEGFR2表达具有正相关关系。在Caki-1细胞中敲除MYOF能够导致VEGFR2在mRNA和蛋白水平的下调。伤口愈合试验阐释了在Caki-1细胞中MYOF的丧失能够减少细胞融合度。

最后,研究人员指出,MYOF能够通过调控VEGFR2降解来影响转移CCRCC细胞系的细胞增殖。靶向MYOF和VEGFR2的组合疗法可能是治疗转移性CCRCC和增加患者生存的有效方法。

原始出处:

Hyo Jung An, Dae Hyun Song, Hyun Min Koh et al.Myoferlin silencing inhibits VEGFR2-mediated proliferation of metastatic clear cell renal cell carcinoma. Sci Rep. 02 Sep 2019

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    2019-09-18 fanweitanzhen
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    2019-09-18 jml2010
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    2019-09-18 liuyiping
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    2019-09-17 深海的鱼

    继续努力学习

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