Exploration of a Series of 5-Arylidene-2-thioxoimidazolidin-4-ones as Inhibitors of the Cytolytic Protein Perforin
摘要:
A series of novel 5-arylidene-2-thioxoimidazolidin-4-ones were investigated as inhibitors of the lymphocyte-expressed pore-forming protein perform. Structure activity relationships were explored through variation of an isoindolinone or 3,4-dihydroisoquinolinone subunit on a fixed 2-thioxoimidazolidin-4-one/thiophene core. The ability of the resulting compounds to inhibit the lytic activity of both isolated perform protein and perforin delivered in situ by natural killer cells was determined. A number of compounds showed excellent activity at concentrations that were nontoxic to the killer cells, and several were a significant improvement on previous classes of inhibitors, being substantially more potent and soluble. Representative examples showed rapid and reversible binding to immobilized mouse perforin at low concentrations (<= 2.5 mu M) by surface plasmon resonance and prevented formation of perforin pores in target cells despite effective target cell engagement, as determined by calcium influx studies. Mouse PK studies of two analogues showed T-1/2 values of 1.1-1.2 h (dose of 5 mg/kg iv) and MTDs of 60-80 mg/kg (ip).
Propionic Acid Derivatives and Methods of Use Thereof
申请人:Biediger Ronald J.
公开号:US20180312523A1
公开(公告)日:2018-11-01
Provided herein are compounds and pharmaceutical compositions of formula I
where R
1
, R
2
, R
3
, R
4
, R
5
and R
6
are as described herein. Also provided pharmaceutically acceptable salts or stereoisomers of these compounds. In addition methods are provided for inhibiting the binding of an integrin to treat various pathophysiological conditions.
[EN] COMPOUNDS, PREPARATIONS AND USES THEREOF<br/>[FR] COMPOSÉS, LEURS PRÉPARATIONS ET LEURS UTILISATIONS
申请人:PETER MACCALLUM CANCER INST
公开号:WO2011075784A1
公开(公告)日:2011-06-30
The present invention provides novel compounds of the Formula (I), pharmaceutical compositions comprising such compounds and methods for using such compounds as agents or drugs for inhibiting perforin activity and for treating a subject at risk of or susceptible to a disease or disorder, or having a disease or disorder associated with undesirable perforin activity.
The present invention provides novel compounds of the Formula I, pharmaceutical compositions comprising such compounds and methods for using such compounds as agents or drugs for inhibiting perforin activity and for treating a subject at risk of or susceptible to a disease or disorder, or having a disease or disorder associated with undesirable perforin activity.
various cancer types. Recent research has identified Werner syndrome ATP-dependent helicase (WRN) as a promising synthetic lethal target for MSI cancers. Herein, we report the first discovery of thiophen-2-ylmethylene bis-dimedone derivatives as novel WRN inhibitors for MSI cancer therapy. Initial computational analysis and biological evaluation identified a new scaffold for a WRN inhibitor. Subsequent
微卫星不稳定性 (MSI) 是一种由 DNA 错配修复系统缺陷引起的高突变状态,导致各种癌症类型的发展。最近的研究已确定维尔纳综合征 ATP 依赖性解旋酶 (WRN) 是 MSI 癌症的一个有前景的合成致死靶点。在此,我们报告了首次发现噻吩-2-基亚甲基双二甲酮衍生物作为用于 MSI 癌症治疗的新型 WRN 抑制剂。初步计算分析和生物学评估确定了 WRN 抑制剂的新支架。随后的 SAR 研究发现了一种高效的 WRN 抑制剂。此外,我们证明最佳化合物通过抑制 WRN 诱导 MSI 癌细胞 DNA 损伤和细胞凋亡。这项研究为 WRN 抑制剂提供了一种新的药效团,强调了它们对 MSI 癌症的治疗潜力。
Propionic acid derivatives and methods of use thereof
申请人:Biediger Ronald J.
公开号:US10875875B2
公开(公告)日:2020-12-29
Provided herein are compounds and pharmaceutical compositions of formula I
where R1, R2, R3, R4, R5 and R6 are as described herein. Also provided pharmaceutically acceptable salts or stereoisomers of these compounds. In addition methods are provided for inhibiting the binding of an integrin to treat various pathophysiological conditions.
本文提供了式 I 的化合物和药物组合物
其中 R1、R2、R3、R4、R5 和 R6 如本文所述。还提供了这些化合物的药学上可接受的盐或立体异构体。此外,还提供了抑制整合素结合以治疗各种病理生理状况的方法。