Peroxiredoxins

A special issue of Antioxidants (ISSN 2076-3921). This special issue belongs to the section "Antioxidant Enzyme Systems".

Deadline for manuscript submissions: 31 January 2027 | Viewed by 1899

Special Issue Editor


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Guest Editor
School of Life Sciences & Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
Interests: oxidative stress; neuroscience; cancer

Special Issue Information

Dear Colleagues,

Chronic oxidative stress and dysregulated redox signaling are linked to the pathogenesis of numerous diseases, including cancer and neurodegenerative disorders. Peroxiredoxins (Prxs), as key antioxidant enzymes located throughout cellular organelles, serve as critical regulators of cellular redox homeostasis, influencing survival, apoptosis, and stress adaptation in diverse biological contexts. In cancer, Prxs are emerging as both biomarkers and therapeutic targets, given their roles in modulating tumor progression and stemness. Similarly, in neurobiology, Prxs protect neurons from oxidative stress-induced damage and are implicated in processes such as neuroinflammation and cognitive decline. Despite significant progress being made in our understanding of Prx biology, the precise molecular mechanisms by which they exert their protective and regulatory effects remain an active area of investigation.

Here, we invite you to contribute original research or comprehensive reviews on the diverse functions of Peroxiredoxins. This Special Issue aims to bring together current findings that deepen our understanding of Prxs in cellular and molecular contexts. Topics of interest include, but are not limited to, the role of Peroxiredoxins in neuronal systems, their regulatory mechanisms in cancer stem cell biology, and innovative therapeutic strategies targeting Prxs. By consolidating these studies, this Special Issue aims to become a valuable resource for advancing research and fostering new insights into the critical functions of Peroxiredoxins.

Prof. Dr. Dong-Seok Lee
Guest Editor

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Keywords

  • peroxiredoxins
  • oxidative stress
  • neuron
  • neuroinflammation
  • stemness
  • cancer

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Published Papers (2 papers)

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Review

16 pages, 599 KB  
Review
Peroxiredoxin-Mediated Redox Regulation in Neurons: From Neurite Development to Degeneration
by Gyuree Kim, Jaeyeon Lee, San Kwon, Eunbyul Yeom and Dong-Seok Lee
Antioxidants 2026, 15(5), 604; https://doi.org/10.3390/antiox15050604 - 10 May 2026
Viewed by 278
Abstract
In the nervous system, reactive oxygen species (ROS) serve essential roles in intracellular signaling, but their dysregulation can impair neuronal function and survival. Peroxiredoxins (Prdxs) have classically been regarded as antioxidant enzymes that scavenge peroxides, yet a growing body of evidence indicates that [...] Read more.
In the nervous system, reactive oxygen species (ROS) serve essential roles in intracellular signaling, but their dysregulation can impair neuronal function and survival. Peroxiredoxins (Prdxs) have classically been regarded as antioxidant enzymes that scavenge peroxides, yet a growing body of evidence indicates that their roles in the brain extend beyond ROS removal. They are increasingly recognized as regulators of redox-dependent processes with isoform-specific roles. In this review, we discuss the functions of Prdxs in the brain from a broad cellular perspective, focusing on their roles in neuronal differentiation, mitochondrial and endoplasmic reticulum (ER) homeostasis, and major neurological disorders including Alzheimer’s disease, Parkinson’s disease, and ischemic stroke. Prdx isoforms show distinct condition-dependent functions regulated by localization, regulatory state, and cellular environment. Collectively, a broader view of Prdxs as dynamic modulators of neural cell biology may help us understand their coordinated integrate their roles in the coordinated regulation of redox-sensitive cellular processes. Clarifying the isoform-specific and cell-type-specific dependent mechanisms underlying their function will be essential in defining the roles of Prdxs in brain physiology and diseases and to evaluating their therapeutic potential. Full article
(This article belongs to the Special Issue Peroxiredoxins)
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16 pages, 1049 KB  
Review
Moonlighting Functions of Mammalian Peroxiredoxins in Cellular Signaling
by Yosup Kim, Eun-Kyung Kim and Ho Hee Jang
Antioxidants 2026, 15(2), 231; https://doi.org/10.3390/antiox15020231 - 10 Feb 2026
Viewed by 1116
Abstract
Peroxiredoxins (Prdxs) are a family of thiol-specific peroxidases that play a central role in maintaining intracellular redox homeostasis. In addition to their classical antioxidant activities, Prdxs function as peroxide sensors, modulators of redox signaling, and molecular chaperones. In this review, we summarize the [...] Read more.
Peroxiredoxins (Prdxs) are a family of thiol-specific peroxidases that play a central role in maintaining intracellular redox homeostasis. In addition to their classical antioxidant activities, Prdxs function as peroxide sensors, modulators of redox signaling, and molecular chaperones. In this review, we summarize the peroxide-reducing activity, their redox-switch mechanism driven by reversible hyperoxidation, and the chaperone function that arises through oligomerization and accompanying structural changes. We also highlight that the Prdx1–Prdx6 isoforms exhibit distinct subcellular localizations and perform isoform-specific functions, thereby contributing to a wide range of physiological and pathological processes. Furthermore, we compile recent findings showing that diverse post-translational modifications (PTMs), including phosphorylation, acetylation, ubiquitination, glutathionylation, sumoylation, and S-nitrosylation, not only regulate Prdx activity but also contribute to cellular signaling processes. Overall, this review emphasizes that Prdxs are more than simple antioxidant enzymes: they serve as guardians of cellular redox balance and dynamic regulators of signaling networks, underscoring their potential as disease biomarkers and therapeutic targets. Full article
(This article belongs to the Special Issue Peroxiredoxins)
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