Selective Inhibition of the Hsp90α Isoform.

Selective Inhibition of the Hsp90α Isoform.
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DOI:
10.1002/anie.202015422
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发表时间:
2021-05-03
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
通讯作者:
Blagg BSJ
Blagg BSJ
中科院分区:
其他
文献类型:
--
作者:
Mishra SJ;Khandelwal A;Banerjee M;Balch M;Peng S;Davis RE;Merfeld T;Munthali V;Deng J;Matts RL;Blagg BSJ

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90 kDa热休克蛋白(Hsp90)是一种分子伴侣,将新生多肽加工成其生物活性构象。这些蛋白中的许多都有助于癌症的进展,因此,抑制Hsp90蛋白折叠机制代表了癌症化疗的一种创新方法。然而,Hsp90 n端抑制剂的临床试验遇到了有害的副作用和毒性,这似乎是由所有四种Hsp90亚型的泛抑制引起的。因此,开发异构体选择性Hsp90抑制剂是为了描述每种异构体所起的病理作用。在此,我们描述了一种基于结构的方法,用于设计第一个Hsp90α-选择性抑制剂,与其他Hsp90亚型相比,它具有50倍的选择性。
The 90 kDa heat shock protein (Hsp90) is a molecular chaperone that processes nascent polypeptides into their biologically active conformations. Many of these proteins contribute to the progression of cancer, and consequently, inhibition of the Hsp90 protein folding machinery represents an innovative approach toward cancer chemotherapy. However, clinical trials with Hsp90 N-terminal inhibitors have encountered deleterious side effects and toxicities, which appear to result from the pan-inhibition of all four Hsp90 isoforms. Therefore, the development of isoform-selective Hsp90 inhibitors is sought to delineate the pathological role played by each isoform. Herein, we describe a structure-based approach that was used to design the first Hsp90α-selective inhibitors, which exhibit > 50-fold selectivity versus other Hsp90 isoforms.
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