Discovery of simplified leucyladenylate sulfamates as novel leucyl-tRNA synthetase (LRS)-targeted mammalian target of rapamycin complex 1 (mTORC1) inhibitors
作者:Suyoung Yoon、Jong Hyun Kim、Yura Koh、Phuong-Thao Tran、Jihyae Ann、Ina Yoon、Jayun Jang、Won Kyung Kim、Sangkook Lee、Jiyoun Lee、Sunghoon Kim、Jeewoo Lee
DOI:10.1016/j.bmc.2017.06.002
日期:2017.8
N-(2-phenoxyethyl)benzenesulfonamide groups (2b) that can maintain specific binding, but has more favorable physicochemical properties such as reduced polarity and asymmetric centers. Among these simplified analogues, compound 16 and its constrained analogue 22 effectively inhibited S6K phosphorylation in a dose-dependent manner and exhibited cancer cell specific cytotoxicity against six different types of cancer
据报道,亮氨酰tRNA合成酶(LRS)可能是介导mTORC1的细胞内氨基酸的介体。鉴于mTORC1与细胞增殖和肿瘤发生有关,LRS介导的mTORC1途径可能为抗癌治疗提供另一种策略。在这项研究中,我们开发了一系列简化的类似亮氨环戊磺酸氨基磺酸盐(1)的类似物,将其作为针对LRS的mTORC1抑制剂。我们用N-(3,4-二甲氧基苄基)苯磺酰胺(2a)或N-(2-苯氧基乙基)苯磺酰胺基团(2b)取代了腺苷酸基团),可以维持特异性结合,但具有更有利的理化特性,例如极性降低和中心不对称。在这些简化的类似物中,化合物16及其受约束的类似物22以剂量依赖性方式有效抑制S6K磷酸化,并表现出针对六种不同类型癌细胞的癌细胞特异性细胞毒性。该结果支持LRS是新型抗癌治疗的可行靶标。