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Development of a novel fluorescent biosensor for dynamic monitoring of metabolic methionine redox status in cells and tissues

Authors
Choi, Dong WookRoh, Yeon JinKim, SeahyunLee, Hae MinKim, MinseoShin, DonghyukPark, Jong HoCho, YongminPark, Hee HoOk, Yong SikKang, DonghyunKim, Jin-HongTarrago, LionelDanial, Nika N.Gladyshev, Vadim N.Min, Pil-KiLee, Byung Cheon
Issue Date
15-4월-2021
Publisher
ELSEVIER ADVANCED TECHNOLOGY
Keywords
Genetically-encoded fluorescent sensor; Free methionine-r-sulfoxide reductase; Methionine sulfoxide; Reactive oxygen species; Oxidative stress; Acute coronary syndrome; Reperfusion
Citation
BIOSENSORS & BIOELECTRONICS, v.178
Indexed
SCIE
SCOPUS
Journal Title
BIOSENSORS & BIOELECTRONICS
Volume
178
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/49423
DOI
10.1016/j.bios.2021.113031
ISSN
0956-5663
Abstract
Aberrant production of reactive oxygen species (ROS) leads to tissue damage accumulation, which is associated with a myriad of human pathologies. Although several sensors have been developed for ROS quantification, their applications for ROS-related human physiologies and pathologies still remain problematic due to the unstable nature of ROS. Herein, we developed Trx1-cpYFP-fRMsr (TYfR), a genetically-encoded fluorescent biosensor with the remarkable specificity and sensitivity toward fMetRO (free Methionine-R-sulfoxide), allowing for dynamic quantification of physiological levels of fMetRO, a novel indicator of ROS and methionine redox status in vitro and in vivo. Moreover, using the sensor, we observed a significant fMetRO enrichment in serum from patients with acute coronary syndrome, one of the most severe cardiovascular diseases, which becomes more evident following percutaneous coronary intervention. Collectively, this study proposes that fMetRO is a novel biomarker of tissue damage accumulation in ROS-associated human pathologies, and that TYfR is a promising tool for quantifying fMetRO with potentials in versatile applications.
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College of Life Sciences and Biotechnology > Division of Environmental Science and Ecological Engineering > 1. Journal Articles
Graduate School > Department of Biotechnology > 1. Journal Articles

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