Redox homeostasis is essential for cell function and its disruption is associated with multiple pathologies. Redox balance is largely regulated by the relative concentrations of reduced and oxidized glutathione. In eukaryotic cells, this ratio is different in each cell compartment, and disruption of the mitochondrial redox balance has been specifically linked to metabolic diseases. Here, we report
氧化还原稳态对细胞功能至关重要,其破坏与多种病理相关。氧化还原平衡主要受还原型和氧化型
谷胱甘肽的相对浓度调节。在真核细胞中,该比例在每个细胞区室中是不同的,并且线粒体氧化还原平衡的破坏已与代谢性疾病特别相关。在这里,我们报告的探针被内源性硝基还原酶选择性激活,并释放
三丁基膦以触发线粒体中的氧化还原应激。机理研究表明,与直觉相反,线粒体中还原剂的释放通过超氧化物的积累迅速诱导了氧化应激。该反应由
谷胱甘肽介导,表明还原性和氧化性应激之间存在联系。此外,