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首页> 外文期刊>Cancer Cell >Small-Molecule Targeting of E3 Ligase Adaptor SPOP in Kidney Cancer
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Small-Molecule Targeting of E3 Ligase Adaptor SPOP in Kidney Cancer

机译:E3连接酶衔接子SPOP在肾癌中的小分子靶向。

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摘要

In the cytoplasm of virtually all clear-cell renal cell carcinoma (ccRCC), speckle-type POZ protein (SPOP) is overexpressed and misallocated, which may induce proliferation and promote kidney tumorigenesis. In normal cells, however, SPOP is located in the nucleus and induces apoptosis. Here we show that a structure-based design and subsequent hit optimization yield small molecules that can inhibit the SPOP-substrate protein interaction and can suppress oncogenic SPOP-signaling pathways. These inhibitors kill human ccRCC cells that are dependent on oncogenic cytoplasmic SPOP. Notably, these inhibitors minimally affect the viability of other cells in which SPOP is not accumulated in the cytoplasm. Our findings validate the SPOP-substrate protein interaction as an attractive target specific to ccRCC that may yield novel drug discovery efforts.
机译:在几乎所有的透明细胞肾细胞癌(ccRCC)的细胞质中,斑点型POZ蛋白(SPOP)过度表达和分配错误,可能诱导增殖并促进肾脏肿瘤发生。然而,在正常细胞中,SPOP位于细胞核中并诱导凋亡。在这里,我们表明基于结构的设计和随后的命中优化产生了可以抑制SPOP-底物蛋白相互作用并抑制致癌SPOP信号通路的小分子。这些抑制剂杀死依赖于致癌细胞质SPOP的人ccRCC细胞。值得注意的是,这些抑制剂对细胞中未累积SPOP的其他细胞的活力影响最小。我们的发现验证了SPOP-底物蛋白相互作用是ccRCC特有的有吸引力的靶标,它可能产生新的药物发现成果。

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