Abstract
The health of living systems depends on the proper balance of cellular oxidative and reductive processes (redox balance), which is reflected in the thiol-disulfide balance in cells. Glutathione is the predominant low-molecular-weight thiol in mammalian cells. Through its diverse actions as an antioxidant, as a detoxifier of xenobiotics, and as a regulator of protein function, among others, glutathione is vitally important to cell health. Spectroscopic probes that can act as sensors or reporters of glutathione are, therefore, useful. We report here the synthesis of three new disulfide-linked dinitroxides, whose EPR spectra change dramatically upon reaction with glutathione, and the characterization of the kinetics of their reaction with glutathione.
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20 July 2021
A Correction to this paper has been published: https://doi.org/10.1007/s00723-021-01359-6
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Supported by the Nanobiology Research Fund of the University of Maryland Baltimore Foundation.
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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by MSP, EAL NDAD, GMR, and JPYK. The first draft of the manuscript was written by MSP and JPYK and all authors edited and commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Palha, M.S., Legenzov, E.A., Dirda, N.D.A. et al. New Disulfide-Linked Dinitroxides and the Kinetics of Their Reaction with Glutathione. Appl Magn Reson 52, 945–955 (2021). https://doi.org/10.1007/s00723-021-01332-3
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DOI: https://doi.org/10.1007/s00723-021-01332-3