Post-Translational Protein Modifications in Oxidative Stress

A special issue of Antioxidants (ISSN 2076-3921).

Deadline for manuscript submissions: closed (31 March 2019) | Viewed by 7548

Special Issue Editor


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Guest Editor
Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC, Canada

Special Issue Information

Dear Colleagues,

Numerous post translational protein modifications play crucial roles in the cellular redox balance and are known to be implicated in many diseases. Some of the most well-known modifications are induced by reactive oxygen and nitrogen species, which generates a wide range of adducts that preferentially target cysteine thiols. Oxygen derived modifications include sulfenylation (SOH), formation of sulfinic acid (SO2H) and sulfonic acid (SO3H) while S-nitrosylation covers thiol adduct formation by nitrogen oxide. In addition, there are many more modifications, i.e., S- and N-homocysteinylation, S-glutathionylation, including protein carbonylation, which are known either to deregulate redox state or to be of importance for maintaining cellular homeostasis. Not only endogenous radicals and compounds cause protein modifications associated with oxidative stress, but also exogenous compounds from food products such as sulfites can potentially play a significant role.

In this Special Edition of Antioxidants, we invite you to submit your most recent research findings or a review article. The aim of this Issue is to consolidate up-to-date research and knowledge on post-translational modifications associated with oxidative stress. Of interest are the development of new approaches and applications of already well-known methods to determine the role and significance of these modifications in disease.

Dr. Klaus Klarskov
Guest Editor

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Published Papers (1 paper)

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Review

25 pages, 1690 KiB  
Review
Cysteine Glutathionylation Acts as a Redox Switch in Endothelial Cells
by Agathe Lermant and Colin E. Murdoch
Antioxidants 2019, 8(8), 315; https://doi.org/10.3390/antiox8080315 - 16 Aug 2019
Cited by 33 | Viewed by 7142
Abstract
Oxidative post-translational modifications (oxPTM) of receptors, enzymes, ion channels and transcription factors play an important role in cell signaling. oxPTMs are a key way in which oxidative stress can influence cell behavior during diverse pathological settings such as cardiovascular diseases (CVD), cancer, neurodegeneration [...] Read more.
Oxidative post-translational modifications (oxPTM) of receptors, enzymes, ion channels and transcription factors play an important role in cell signaling. oxPTMs are a key way in which oxidative stress can influence cell behavior during diverse pathological settings such as cardiovascular diseases (CVD), cancer, neurodegeneration and inflammatory response. In addition, changes in oxPTM are likely to be ways in which low level reactive oxygen and nitrogen species (RONS) may contribute to redox signaling, exerting changes in physiological responses including angiogenesis, cardiac remodeling and embryogenesis. Among oxPTM, S-glutathionylation of reactive cysteines emerges as an important regulator of vascular homeostasis by modulating endothelial cell (EC) responses to their local redox environment. This review summarizes the latest findings of S-glutathionylated proteins in major EC pathways, and the functional consequences on vascular pathophysiology. This review highlights the diversity of molecules affected by S-glutathionylation, and the complex consequences on EC function, thereby demonstrating an intricate dual role of RONS-induced S-glutathionylation in maintaining vascular homeostasis and participating in various pathological processes. Full article
(This article belongs to the Special Issue Post-Translational Protein Modifications in Oxidative Stress)
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