A Multisite‐Binding Switchable Fluorescent Probe for Monitoring Mitochondrial ATP Level Fluctuation in Live Cells. Issue 5 (16th December 2015)

• Record Type: Journal Article
• Authors: Wang, Lu; Yuan, Lin; Zeng, Xian; Peng, Juanjuan; Ni, Yong; Er, Jun Cheng; Xu, Wang; Agrawalla, Bikram Keshari; Su, Dongdong; Kim, Beomsue; Chang, Young‐Tae
• Is Part Of: Angewandte Chemie international edition. Volume 55:Issue 5(2016)
• Page Start: 1773
• Page End: 1776
• Publication Date: 2015-12-16
• Subjects: ATP -- cell imaging -- fluorescent probes -- multisite-binding; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201510003
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: Adenosine triphosphate (ATP), commonly produced in mitochondria, is required by almost all the living organisms; thus fluorescent probes for monitoring mitochondrial ATP levels fluctuation are essential and highly desired. Herein, we report a multisite‐binding switchable fluorescent probe, ATP‐Red 1, which selectively and rapidly responds to intracellular concentrations of ATP. Live‐cell imaging indicated that ATP‐Red 1 mainly localized to mitochondria with good biocompatibility and membrane penetration. In particular, with the help of ATP‐Red 1, we successfully observed not only the decreased mitochondrial ATP levels in the presence of KCN and starvation state, but also the increased mitochondrial ATP levels in the early stage of cell apoptosis. These results indicate that ATP‐Red 1 is a useful tool for investigating ATP‐relevant biological processes. Abstract : Illuminating the ATP : A multisite‐binding, switchable fluorescent probe can selectively and rapidly respond to ATP at intracellular concentrations. In live‐cell imaging, the probe was successfully applied to monitor fluctuations in mitochondrial ATP levels.