Synthesis and in Vitro Anticancer Activity of the First Class of Dual Inhibitors of REV-ERBβ and Autophagy
摘要:
Autophagy inhibition is emerging as a promising anticancer strategy. We recently reported that the circadian nuclear receptor REV-ERB beta plays an unexpected role in sustaining cancer cell survival when the autophagy flux is compromised. We also identified 4-[[[1-(2-fluorophenyl)cyclopentynamino]methyl]-2-[(4-methylpiperazin-1-yl)methyl]phenol, 1 (ARN5187), as a novel dual inhibitor of REV-ERB beta and autophagy. 1 had improved cytotoxicity against BT-474 breast cancer cells compared to chloroquine, a clinically relevant autophagy inhibitor. Here, we present the results of structure activity studies, based around 1, that disclose the first class of dual inhibitors of REV-ERB beta and autophagy. This study led to identification of 18 and 28, which were more effective REV-ERB beta antagonists than 1 and were more cytotoxic to BT-474. The combination of optimal chemical and structural moieties of these analogs generated 30, which elicited 15-fold greater REV-ERB beta inhibitory and cytotoxic activities compared to 1. Furthermore, 30 induced death in a panel of tumor cell lines at doses 5-50 times lower than an equitoxic amount of chloroquine but did not affect the viability of normal mammary epithelial cells.
[EN] DIARYLALKYLAMINE REV-ERB ANTAGONISTS AND THEIR USE AS MEDICAMENTS<br/>[FR] ANTAGONISTES DIARYLALKYLAMINES DE REV-ERB ET LEUR UTILISATION COMME MÉDICAMENTS
申请人:FOND ISTITUTO ITALIANO DI TECNOLOGIA
公开号:WO2015052283A1
公开(公告)日:2015-04-16
The present invention relates to compounds of Formula (I) or pharmaceutically acceptable salts or solvates thereof : It further discloses a pharmaceutical composition comprising the compounds of Formula (I) and their uses as anti-proliferative and pro-apoptotic agents for cancer therapy.
Metal Complexes with Nitronyl Nitroxide Substituted Phenolate Ligands Providing New Magnetic Exchange Interaction Pathways − Synthesis, Structures, Magnetic Dilution Studies, and Ab Initio Calculations
The synthesis and magneticproperties of seven new nitronylnitroxide substituted phenolates with chelating amine groups are reported. Copper(II) and nickel(II) complexes prepared with these ligands are structurally and magnetically characterized, showing exchange interactions between the metal and the radical ligands through the phenolate oxygen. Magnetically diluted samples are prepared by embedding
报道了七种新的具有螯合胺基团的硝酰基硝基氧取代酚盐的合成和磁性。用这些配体制备的铜 (II) 和镍 (II) 配合物在结构和磁性上都进行了表征,显示出金属和自由基配体之间通过酚氧的交换相互作用。通过将化合物嵌入聚(氯乙烯)薄膜中以抑制分子间交换相互作用来制备磁性稀释样品。该方法首次以定量方式用于分离自由基-金属系统中的分子内和分子间交换相互作用。DFT 计算进一步证实了实验确定的基态。
DIARYLALKYLAMINE REV-ERB ANTAGONISTS AND THEIR USE AS MEDICAMENTS
申请人:FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA
公开号:US20160237057A1
公开(公告)日:2016-08-18
The present invention relates to compounds of Formula (I) or pharmaceutically acceptable salts or solvates thereof: It further discloses a pharmaceutical composition comprising the compounds of Formula (I) and their uses as anti-proliferative and pro-apoptotic agents for cancer therapy.
3-Hydroxy-<i>N</i>′-arylidenepropanehydrazonamides with Halo-Substituted Phenanthrene Scaffolds Cure <i>P. berghei</i> Infected Mice When Administered Perorally
作者:Michael Leven、Tanja C. Knaab、Jana Held、Sandra Duffy、Stephan Meister、Christoph Fischli、Diane Meitzner、Ursula Lehmann、Beate Lungerich、Krystina Kuna、Petra Stahlke、Michael J. Delves、Mirko Buchholz、Elizabeth A. Winzeler、Vicky M. Avery、Benjamin Mordmüller、Sergio Wittlin、Thomas Kurz
DOI:10.1021/acs.jmedchem.7b00140
日期:2017.7.27
Structural optimization of 3-hydroxy-N'-arylidenepropanehydrazonamides provided new analogs with nanomolar to subnanomolar antiplasmodial activity against asexual blood stages of Plasmodium falciparum, excellent parasite selectivity, and nanomolar activity against the earliest forms of gametocyte development. Particularly, derivatives with a 1,3-dihalo-6-trifluoromethylphenanthrene moiety showed outstanding in vivo properties and demonstrated in part curative activity in the Plasmodium berghei mouse model when administered perorally.