Esterase-Triggered Self-Immolative Thiocarbamates Provide Insights into COS Cytotoxicity
作者:Carolyn M. Levinn、Andrea K. Steiger、Michael D. Pluth
DOI:10.1021/acschembio.8b00981
日期:2019.2.15
Hydrogen sulfide (H2S) is an important gasotransmitter and biomolecule, and many synthetic small-molecule H2S donors have been developed for H2S-related research. One important class of triggerable H2S donors is self-immolative thiocarbamates, which function by releasing carbonyl sulfide (COS), which is rapidly converted to H2S by the ubiquitous enzyme carbonic anhydrase (CA). Prior studies of esterase-triggered
硫化氢(H2S)是重要的气体传输剂和生物分子,并且已经开发出许多合成的小分子H2S供体用于与H2S相关的研究。一类重要的可触发H2S供体是自燃性硫代氨基甲酸酯,其通过释放羰基硫(COS)来起作用,而后者被普遍存在的碳酸酐酶(CA)迅速转化为H2S。酯酶触发的硫代氨基甲酸酯供体的先前研究报告,与直接硫化物供体相比,线粒体生物能学和毒性得到了显着抑制,这表明COS的功能可能不同于H2S。在这里,我们报告了一套模块化的酯酶触发的自焚COS供体,包括合成,H2S释放曲线和已开发供体的细胞毒性。