An Innovative Hydrogen Peroxide‐Sensing Scaffold and Insight Towards its Potential as an ROS‐Activated Persulfide Donor
作者:Rynne A. Hankins、S. Israel Suarez、Madison A. Kalk、Nolan M. Green、Megan N. Harty、John C. Lukesh
DOI:10.1002/anie.202010530
日期:2020.12
Reactive sulfur species, such as hydrogen sulfide, persulfides, and polysulfides, have recently emerged as key signaling molecules and important physiological mediators within mammalian systems. To better assess the therapeutic potential of their exogenous administration, we report on the development of a unique hydrogen peroxide (H2O2)‐sensing motif and its capacity for providing cellular protection
诸如硫化氢,过硫化物和多硫化物之类的反应性硫物种最近已成为哺乳动物系统中的关键信号分子和重要的生理介质。为了更好地评估其外源性治疗的治疗潜力,我们报告了独特的过氧化氢(H 2 O 2)传感基序的开发及其在提供细胞保护以抵抗氧化应激的同时充当活性氧(ROS)的能力。活化的过硫化物供体。通过战略性实施宝石二甲基基团以促进稳定性和环化作用,我们发现从这种新衍生的支架中释放的有效载荷的初始速率与H 2 O的浓度成正比。如图2所示,并且通过避免产生亲电子副产物的前所未有的途径进行,这是困扰先前设计的生理学应用的严重限制。