PO.CH01.07 · 化学
NVL抑制剂苯并噻氮杂卓酮通过阻断核糖体生物合成靶向结直肠癌
The NVL inhibitor benzothiazepinone targets colorectal cancer by blocking ribosome biogenesis
作者与单位 Authors & Affiliations
摘要 Abstract
中文摘要
鉴定新的癌症相关蛋白靶点是发现治疗癌症的小分子疗法的一大瓶颈。为应对这一挑战,我们的团队开发了一个平台,将基于细胞的高通量表型筛选与正向遗传学相结合,以鉴定新的癌症靶点及配套的小分子先导物。通过将该方法与生化重构和结构生物学相结合,我们鉴定出MM017(苯并噻氮杂卓酮骨架)——一种在结直肠癌细胞中具有抗增殖活性的新型小分子,及其靶点核内含缬酪肽蛋白样蛋白(NVL),一种大核糖体亚基(60S)组装所需的六聚体AAA+转位酶。与此同时,启动了一项先进的药物化学攻关,以建立构效关系(SAR)并评估持续修饰如何平衡候选小分子的化学物理性质。满足体外ADME性质最低标准的化合物被推进漏斗,并通过临床前模型进一步评估其药代动力学、毒性和疗效。
查看英文原文 English abstract
The identification of new cancer-relevant protein targets is a major bottleneck in the discovery of small molecule therapies for the treatment of cancer. To meet this challenge, our team developed a platform that combines cell-based, high throughput phenotypic screens with forward genetics to identify new cancer targets and accompanying small molecule leads. By combining this approach with biochemical reconstitution and structural biology, we identified MM017 (benzothiazepinone scaffold) as a novel small molecule with anti-proliferative activity in colorectal cancer cells and its target nuclear valosin-containing protein-like (NVL), a hexameric AAA+ translocase required for large ribosomal subunit (60S) assembly. Simultaneously, an advanced medicinal chemistry campaign was launched to establish the SAR and to evaluate how continual modification balances the chemical-physical properties of candidate small molecules. Compounds that meet minimal criteria for in vitro ADME properties are progressed through the funnel and further evaluated through preclinical models to assess pharmacokinetics, toxicity, and efficacy.
利益披露 Disclosure
Y. Tao, None..
H. Guo, None..
M. Fang, None..
V. Khivansara, None..
S. Xie, None..
A. Leach, None..
D. Reddy, None..
N. S. Williams, None..
A. B. Aurora, None..
D. Nijhawan, None..
J. K. De Brabander, None.