Iron, ferroptosis, and ischemic stroke

Guo, Jun; Tuo, Qing‐Zhang; Lei, Peng

doi:10.1111/jnc.15807

Cited by 45 publications

(17 citation statements)

References 454 publications

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“…Ferroptosis is an iron-dependent oxidative stress-induced cell death that has been shown to play an important role in IS [19][20][21] . Exploring the molecular mechanism related to ferroptosis in IS is helpful for disease diagnosis, prognosis and management.…”

Section: Discussionmentioning

confidence: 99%

Construction of a novel circRNA-miRNA-ferroptosis related mRNA network in ischemic stroke

Xie,

Huang,

Zhan

2023

Sci Rep

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Molecule alterations are important to explore the pathological mechanism of ischemic stroke (IS). Ferroptosis, a newly recognized type of regulated cell death, is related to IS. Identification of the interactions between circular RNA (circRNA), microRNA (miRNA) and ferroptosis related mRNA may be useful to understand the molecular mechanism of IS. The circRNA, miRNA and mRNA transcriptome data in IS, downloaded from the Gene Expression Omnibus (GEO) database, was used for differential expression analysis. Ferroptosis related mRNAs were identified from the FerrDb database, followed by construction of circRNA-miRNA-ferroptosis related mRNA network. Enrichment and protein–protein interaction analysis of mRNAs in circRNA-miRNA-mRNA network was performed, followed by expression validation by reverse transcriptase polymerase chain reaction and online dataset. A total of 694, 41 and 104 differentially expressed circRNAs, miRNAs and mRNAs were respectively identified in IS. Among which, dual specificity phosphatase 1 (DUSP1), nuclear receptor coactivator 4 (NCOA4) and solute carrier family 2 member 3 (SLC2A3) were the only three up-regulated ferroptosis related mRNAs. Moreover, DUSP1, NCOA4 and SLC2A3 were significantly up-regulated in IS after 3, 5 and 24 h of the attack. Based on these three ferroptosis related mRNAs, 4 circRNA-miRNA-ferroptosis related mRNA regulatory relationship pairs were identified in IS, including hsa_circ_0071036/hsa_circ_0039365/hsa_circ_0079347/hsa_circ_0008857-hsa-miR-122-5p-DUSP1, hsa_circ_0067717/hsa_circ_0003956/hsa_circ_0013729-hsa-miR-4446-3p-SLC2A3, hsa_circ_0059347/hsa_circ_0001414/hsa_circ_0049637-hsa-miR-885-3p-SLC2A3, and hsa_circ_0005633/hsa_circ_0004479-hsa-miR-4435-NCOA4. In addition, DUSP1 is involved in the signaling pathway of fluid shear stress and atherosclerosis. Relationship of regulatory action between circRNAs, miRNAs and ferroptosis related mRNAs may be associated with the development of IS.

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Section: Discussionmentioning

confidence: 99%

Construction of a novel circRNA-miRNA-ferroptosis related mRNA network in ischemic stroke

Xie,

Huang,

Zhan

2023

Sci Rep

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“…In recent years, the mechanism of the iron homeostasis imbalance represented by ferroptosis in the progression of neurodegenerative diseases has been supported by increasing amounts of evidence. Ferroptosis, characterized by altered brain iron homeostasis, dysregulation of the antioxidant system, and oxidative damage, plays an important role in the progression of neurodegenerative diseases such as stroke, AD, PD, and so on 116,219–226 . Therefore, elucidating the mechanisms involved in ferroptosis is crucial for the treatment of neurodegeneration.…”

Section: Ferroptosis: the Ending Of Iron Overloadmentioning

confidence: 99%

Iron homeostasis imbalance and ferroptosis in brain diseases

Long

Zhu

Wei

et al. 2023

MedComm

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Brain iron homeostasis is maintained through the normal function of blood–brain barrier and iron regulation at the systemic and cellular levels, which is fundamental to normal brain function. Excess iron can catalyze the generation of free radicals through Fenton reactions due to its dual redox state, thus causing oxidative stress. Numerous evidence has indicated brain diseases, especially stroke and neurodegenerative diseases, are closely related to the mechanism of iron homeostasis imbalance in the brain. For one thing, brain diseases promote brain iron accumulation. For another, iron accumulation amplifies damage to the nervous system and exacerbates patients’ outcomes. In addition, iron accumulation triggers ferroptosis, a newly discovered iron‐dependent type of programmed cell death, which is closely related to neurodegeneration and has received wide attention in recent years. In this context, we outline the mechanism of a normal brain iron metabolism and focus on the current mechanism of the iron homeostasis imbalance in stroke, Alzheimer's disease, and Parkinson's disease. Meanwhile, we also discuss the mechanism of ferroptosis and simultaneously enumerate the newly discovered drugs for iron chelators and ferroptosis inhibitors.

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“…Biochemical and transcriptomic analyses of mediators of iron metabolism, antioxidant defenses, oxidative stress, and lipid peroxidation in experimental disease models, autopsy material, and induced pluripotent stem cell (iPSCs) derived from patients indicate that ferroptosis is a major mechanism of cell death in a wide range of neurologic disorders. These include Alzheimer disease (AD), 64,72,76-82 Parkinson disease (PD), 55,83-87 amyotrophic lateral sclerosis (ALS), 88-92 Huntington disease, 93-95 Friedreich ataxia, 96-98 multiple sclerosis, 99-101 ischemic stroke, 47,102-105 intracerebral hemorrhage, 106,107 traumatic brain injury, 108 spinal cord injury, 109,110 epilepsy, 111-113 and glioma, 114 among others. This topic has been extensively reviewed, 16-21,115,116 and only few concepts will be emphasized in this study.…”

Section: Role Of Ferroptosis In Neurologic Diseasementioning

confidence: 99%

What Is the Role of Ferroptosis in Neurodegeneration?

Benarroch

2023

Neurology

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Ferroptosis is a unique form of programmed cell death pathway that is mechanistically different from necrosis, apoptosis, or autophagy.1 Ferroptosis is induced by reactive oxygen species (ROS) originating from multiple sources, especially accumulation of free intracellular divalent iron (Fe2+), leading to peroxidation of polyunsaturated fatty acids (PUFAs) and resulting in membrane damage (Figure). One major trigger of ferroptosis is decreased availability of intracellular antioxidant enzymes, particularly glutathione peroxidases (GPXs).1-7 Because of its high lipid concentration and oxygen consumption rate, the nervous tissue is extremely vulnerable to oxidative damage and ferroptosis. With aging, iron accumulates in the brain, which predisposes to and exacerbates these processes.8 Iron promotes ferroptosis both directly and as a cofactor required for the activity of enzymes mediating redox reactions and lipid peroxidation.9,10 Epigenetic regulation can determine cell sensitivity to ferroptosis by affecting intracellular iron levels, oxidative stress, and lipid metabolism.11 Ferroptosis affects all cell types in the nervous system, including neurons, glial cells, and pericytes.12 Microglia are the primary iron-accumulating cells in disease.13,14 Recent evidence indicates that iron-laden microglia have a critical role in ferroptosis associated with neurodegeneration.15 Studies in vitro, in experimental disease models, and in human brain tissue indicate that iron accumulation, oxidative stress, and lipid peroxidation are major disease mechanisms in a wide range of neurologic disorders. These studies also suggest that the different components of the ferroptosis pathway are potential targets for therapeutic intervention. The mechanisms of ferroptosis and its role in neurologic disorders have been the subject of several recent comprehensive reviews.7,8,16-21 Some of these concepts pertinent to neurodegeneration will be emphasized in this study.

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Iron, ferroptosis, and ischemic stroke

Cited by 45 publications

References 454 publications

Construction of a novel circRNA-miRNA-ferroptosis related mRNA network in ischemic stroke

Construction of a novel circRNA-miRNA-ferroptosis related mRNA network in ischemic stroke

Iron homeostasis imbalance and ferroptosis in brain diseases

What Is the Role of Ferroptosis in Neurodegeneration?

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