Synthesis and Evaluation of the Tumor Cell Growth Inhibitory Potential of New Putative HSP90 Inhibitors
作者:Ana Bizarro、Diana Sousa、Raquel Lima、Loana Musso、Raffaella Cincinelli、Vantina Zuco、Michelandrea De Cesare、Sabrina Dallavalle、M. Vasconcelos
DOI:10.3390/molecules23020407
日期:——
9-diones as inhibitors of HSP90. METHODS In the present work, various compounds with new chromenopyridinone and thiochromenopyridinone scaffolds were synthesized as potential HSP90 inhibitors. Their binding affinity to HSP90 was studied in vitro. Selected compounds (5 and 8) were further studied in various tumor cell lines regarding their potential to cause cell growth inhibition, alter the cell cycle profile
背景技术热休克蛋白90(HSP90)是癌症治疗的众所周知的靶标。在以前的工作中,我们中的一些人报道了一系列3-芳基萘并[2,3-d]异恶唑-4,9-二酮类化合物作为HSP90的抑制剂。方法在目前的工作中,合成了具有新的色胺吡啶并酮和硫代色吡啶并酮支架的各种化合物作为潜在的HSP90抑制剂。在体外研究了它们对HSP90的结合亲和力。在各种肿瘤细胞系中进一步研究了选定的化合物(5和8),这些化合物可能引起细胞生长抑制,改变细胞周期特征,抑制增殖和诱导凋亡。在两个细胞系中也证实了它们对HSP90客户蛋白质水平的影响。最后,在裸鼠的A431鳞状细胞癌异种移植物中研究了化合物8的抗肿瘤活性。结果我们的结果表明,用化合物5和8处理降低了肿瘤细胞系的增殖,并且化合物8诱导了细胞凋亡。另外,这两种化合物能够下调被称为HSP90“客户”的蛋白质。最后,用化合物5处理异种移植的小鼠导致相当大的剂量依赖性抑制肿