Fluorogenic hydrogen sulfide (H<sub>2</sub>S) donors based on sulfenyl thiocarbonates enable H<sub>2</sub>S tracking and quantification
作者:Yu Zhao、Matthew M. Cerda、Michael D. Pluth
DOI:10.1039/c8sc05200j
日期:——
in biological systems remains a key challenge in H2S donor development. Herein we report the synthesis, evaluation, and application of caged sulfenylthiocarbonates as new fluorescent H2S donors. These molecules rely on thiol cleavage of sulfenylthiocarbonates to release carbonyl sulfide (COS), which is quickly converted to H2S by carbonic anhydrase (CA). This approach is a new strategy in H2S release
硫化氢 (H 2 S) 是一种重要的细胞信号分子,具有良好的保护作用。尽管已经开发了许多可触发的H 2 S供体,但生物系统中H 2 S释放的时空反馈仍然是H 2 S供体开发中的关键挑战。在此,我们报道了笼状硫代碳酸酯作为新型荧光H 2 S供体的合成、评价和应用。这些分子依靠硫基硫代碳酸酯的硫醇裂解来释放羰基硫 (COS),该硫醚可通过碳酸酐酶 (CA)快速转化为 H 2 S。该方法是 H 2 S 释放的新策略,并且不会释放基于 COS 的 H 2 S 释放基序常见的亲电副产物。重要的是,COS/H 2 S的释放伴随着荧光报告剂的释放,这使得能够通过荧光光谱或显微镜实时跟踪H 2 S。根据荧光团的选择,可以释放一或两个当量的H 2 S,从而允许调节荧光供体的动态范围。我们证明荧光响应与定量的 H 2 S 释放直接相关,并且还证明了这些供体的活细胞相容性。此外,这些荧光供体在 RAW 264.7
[EN] COMPOUNDS FOR THIOL-TRIGGERED COS AND/OR H2S RELEASE AND METHODS OF MAKING AND USING THE SAME<br/>[FR] COMPOSÉS POUR LA LIBÉRATION DE COS ET/OU DE H2S DÉCLENCHÉE PAR THIOL ET LEURS PROCÉDÉS DE FABRICATION ET D'UTILISATION
申请人:UNIV OREGON
公开号:WO2019231503A1
公开(公告)日:2019-12-05
Disclosed herein are embodiments of a compound that is capable of releasing COS and/or H2S upon reaction with a thiol-containing compound. The compound embodiments also can produce a detectable signal (e.g., a fluorescent signal) substantially concomitantly with COS and/or H2S release and/or can release an active agent, such as a therapeutic agent. Methods of making and using the compound embodiments also are disclosed.
A fluorescein-based fluorescentprobe has been designed and synthesised that selectively detects H2S in aqueous medium, among various analytes tested. This fluorescein-based fluorescentprobe has also been successfully utilised for real-time imaging of exo- and endogenously produced H2S in cancer cells and normal cells. Moreover, the probe can also detect H2S in the rat brain hippocampus at variable
基于荧光素-荧光探针的设计和合成,其选择性检测ħ 2 S IN水性介质中,测试了各种分析物之间。这种基于荧光素的荧光探针也已成功用于癌细胞和正常细胞中外源性和内源性产生的H 2 S的实时成像。此外,探针也可检测ħ 2 S沿大鼠脑海马在可变的深度和在活线虫。
A fluorescent probe for the biological signaling molecule H2S based on a specific H2S trap group
A fluorescent turn-on probe for H2S was exploited based on a H2S-induced substitution-cyclization cascade reaction towards the bis-electrophilic centers of a new H2S trap group 2-(iodomethyl)benzoate.