Synthesis of selective PAK4 inhibitors for lung metastasis of lung cancer and melanoma cells.

Synthesis of selective PAK4 inhibitors for lung metastasis of lung cancer and melanoma cells.
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肺癌和黑色素瘤细胞肺转移选择性PAK4抑制剂的合成

DOI:
10.1016/j.apsb.2022.02.029
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发表时间:
2022-06
影响因子:
14.5
通讯作者:
Cheng, Maosheng
Cheng, Maosheng
中科院分区:
化学1区
文献类型:
--
作者:
Song, Peilu;Zhao, Fan;Li, Dahong;Qu, Jiqiang;Yao, Miao;Su, Yuan;Wang, Hanxun;Zhou, Miaomiao;Wang, Yujie;Gao, Yinli;Li, Feng;Zhao, Dongmei;Zhang, Fengjiao;Rao, Yu;Xia, Mingyu;Li, Haitao;Wang, Jian;Cheng, Maosheng

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p21激活激酶4(PAK 4)是丝氨酸/苏氨酸蛋白激酶,对癌症进展至关重要。在X射线晶体学和基于结构的优化的指导下,我们报道了一个新的亚系列的C-3-取代的6-乙炔基-1H-吲哚衍生物,其对II组PAKs显示出高潜力和特异性。在这些抑制剂中,化合物55表现出优异的抑制活性和激酶选择性,对肺癌细胞系A549和黑色素瘤细胞系B16显示出上级的抗迁移和抗侵袭特性。化合物55表现出有效的体内抗肿瘤转移功效,在A549或B16-BL 6肺转移模型中分别具有超过80%和90%的肺转移抑制。进一步的机制研究表明,化合物55减轻TGF-β1诱导的上皮-间充质转化(EMT)。6-乙炔基-1H-吲哚衍生物55是一种有效的选择性PAK 4抑制剂(Ki = 10.2 nmol/L),可有效抑制A549或B16-BL 6细胞的肺转移。
The p21 activated kinase 4 (PAK4) is serine/threonine protein kinase that is critical for cancer progression. Guided by X-ray crystallography and structure-based optimization, we report a novel subseries of C-3-substituted 6-ethynyl-1H-indole derivatives that display high potential and specificity towards group II PAKs. Among these inhibitors, compound 55 exhibited excellent inhibitory activity and kinase selectivity, displayed superior anti-migratory and anti-invasive properties against the lung cancer cell line A549 and the melanoma cell line B16. Compound 55 exhibited potent in vivo antitumor metastatic efficacy, with over 80% and 90% inhibition of lung metastasis in A549 or B16-BL6 lung metastasis models, respectively. Further mechanistic studies demonstrated that compound 55 mitigated TGF-β1-induced epithelial-mesenchymal transition (EMT). 6-Ethynyl-1H-indole derivative 55 is a potent and selective PAK4 inhibitor (Ki = 10.2 nmol/L), which effectively inhibits lung metastasis in A549 or B16-BL6 cells.
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